Introduction
In switch-mode power supply (SMPS) designs, optocouplers are critical components for enabling safe and reliable signal transmission across galvanic isolation boundaries. To work well, they need to be correctly connected and used in the feedback loop. If not set up properly, they can lead to instability, poor transient response, and degraded regulation.
This article explains how to correctly bias optocouplers—covering LED current, current transfer ratio (CTR), and phototransistor setup—to keep your power supply accurate, stable, and reliable.
What is an Optocoupler?
An optocoupler is an electronic component that basically acts as an interface between two separate circuits with different voltage levels while providing electrical isolation (Galvanic isolation) between them.
It is used to protect low voltage circuits from high voltage circuits by preventing hazardous current flow and eliminating unwanted noise.
Optocouplers, Optoisolators | Electronic Components Distributor DigiKey
Role of optocouplers in isolated feedback loops
In isolated switch-mode power supply (SMPS) architectures, feedback from the output (secondary) side to the input (primary) side must be transmitted without compromising electrical isolation. This can be achieved by using an optocoupler paired with a precision shunt regulator such as LT1431.
This shunt regulator monitors the SMPS output voltage through a resistor divider and adjusts the current flowing through the optocoupler’s LED to correct any deviation from the desired voltage setpoint.
The LED in the optocoupler emits light in proportion to the forward current (IF). This light is detected by a phototransistor on the primary side, which adjusts the control signal - typically at the PWM controller’s compensation pin (COMP). This modulation influences the duty cycle of the switching controller, forming a closed-loop feedback system that helps maintain stable output voltage under varying load and input conditions.
The performance of this feedback loop depends heavily on the optocoupler’s biasing and the design of the compensation network.
Poor biasing can lead to nonlinearity, saturation, or slow response, while an improperly tuned compensation network may cause instability or oscillation.
Optocoupler Biasing
Biasing of an optocoupler means setting the correct operating conditions specifically, the forward current through the LED, the collector-emitter voltage and current of the phototransistor so that the optocoupler operates in its linear region.
This is especially important in feedback systems, where the optocoupler needs to accurately transfer analog signals across an isolation barrier.
In an isolated SMPS (Switched-Mode Power Supply), the optocoupler acts as a bridge between the secondary-side voltage sensing and the primary-side PWM controller. If it’s not correctly biased, the feedback signal can become distorted, leading to poor voltage regulation or even instability.
Figure 1 shows the internal structure of the optocoupler and how it’s connected externally when used as a feedback element in an SMPS.
1. LED Side: Driving the Light (Input Stage)
In an SMPS with isolated feedback, the LED side of the optocoupler is typically driven by a shunt regulator (such as the LT1431), which adjust the LED’s forward current based on the output voltage.
Why Forward Current Matters?
The forward current through the LED determines the intensity of light it emits, which in turn controls how much the phototransistor conducts on the primary side.
The LED operates in the forward-biased region, and its light output increases with higher IF, for most designs, a forward current between 1 mA and 10 mA is recommended:
- Too low (e.g., <1 mA): Insufficient optical power, leading to weak phototransistor activation and poor feedback regulation.
- Too high (e.g., >10 mA): Can cause thermal stress, reduce lifetime, and degrade optical efficiency.
In practical designs, the LED current is set by a resistor (R2) at the LED anode, and this current dynamically adjusts as the shunt regulator adjusts its cathode current in response to output voltage changes.
Design Tip:
In high performance or fast transient SMPS designs, maintaining a stable and well-controlled IF is essential to ensure accurate, low noise, and thermally reliable operation of the optocoupler feedback path.
Designers must also consider the LED’s forward voltage drop when calculating headroom, especially on low-voltage rails.
Example: EL3H7(B)(TA)-VG (OPTOISO 3.75KV 1CH TRANS 4-SSOP)
This graph shows the design recommendation to operate the LED within a safe and linear range (typically 1–10 mA) to ensure stable and predictable feedback.
2. Understanding Current Transfer Ratio (CTR)
The current transfer ratio (CTR) is another parameter in optocoupler selection. It is defined as the ratio of the phototransistor output current to the LED input current, typically expressed as a percentage.
CTR (%) = (Phototransistor Output Current / LED Input Current) × 100
A CTR of 100% means 1 mA of LED current yields 1 mA of collector current at the phototransistor.
Why CTR Is Not a Constant
CTR varies with:
- Temperature: Often decreases at high temperatures
- LED current: Nonlinear at low currents
- Aging: Light output degrades over time
- Device variation: Some parts have wide CTR ranges (e.g., 50–600%)
For example, the PC817D optocoupler offers CTR ranging from 50% to 600%, depending on the specific part number and operating conditions
Key Considerations when Selecting CTR
Designers must account for the minimum guaranteed CTR to ensure the feedback loop remains functional even under worst-case conditions.
- If the CTR drops too low - due to temperature drift, aging, or manufacturing variation - the phototransistor may not provide enough current to drive the PWM controller’s compensation pin (COMP), leading to poor voltage regulation or even instability. For example, CTR typically decreases as temperature increases, which can reduce loop gain and cause sluggish response or loss of control at high temperatures. Similarly, long-term operation at high LED currents can degrade the LED’s efficiency, reducing light output and weakening the feedback signal.
- Another critical factor is linearity. The optocoupler must operate in its linear region to ensure predictable feedback behavior. If the LED current causes the phototransistor to enter a nonlinear region—where small changes in input result in disproportionate changes in output—the feedback signal becomes distorted. This complicates compensation design and can lead to unstable or inaccurate voltage regulation.
By carefully considering these factors, designers can ensure that the optocoupler-based feedback loop remains robust, accurate, and stable throughout the product’s operating life and environmental conditions. For feedback applications, a tighter CTR tolerance (for example, 100% to 200%) is preferred to maintain consistent loop gain and predictable behavior.
Example Device EL3H7(B)(TA)-VG (OPTOISO 3.75KV 1CH TRANS 4-SSOP)
This graph shows how temperature drift affects CTR - CTR varies with forward current - lower IF values show sharper CTR drop with temperature, while higher IF values offer more stable CTR but still peak and decline.
3. Phototransistor Side: Receiving the Signal (Output Stage)
The phototransistor serves as the key element that converts the optical signal from the internal LED into an electrical output.
It is commonly configured in a common-emitter arrangement, the phototransistor has its emitter grounded and its collector connected to a pull-up resistor (R1), which defines the output voltage swing.
Collector Current Controls the COMP Pin
When the LED inside the optocoupler is forward-biased, it emits infrared light that hits the base region of the phototransistor, causing it to conduct. The resulting collector current (IC) is proportional to both the LED’s forward current and the optocoupler’s Current Transfer Ratio (CTR).
As the LED illumination increases, the phototransistor conducts more, causing its collector voltage to drop. This produces a low-level output signal, which is critical in isolated feedback systems like SMPS. In such systems, the phototransistor’s collector is often connected to the COMP pin or feedback input of the PWM controller. The voltage at this node directly affects the controller’s duty cycle, helping regulate the output voltage or current.
Pull-Up Resistor Effects
The pull-up resistor on the collector not only sets the high level output voltage when the transistor is off but also impacts the dynamic response of the feedback loop.
- A lower resistance value can improve response time but may reduce voltage swing.
- While a higher value increases swing but can slow down transitions.
Additionally, the phototransistor’s switching speed, saturation characteristics, and leakage current in the off state are important design considerations, especially in high frequency or precision applications.
Conclusion
Optocouplers may look a simple electronics device, just a light source and a transistor — but in SMPS feedback loops, they play a critical role. If the signal they pass across the isolation barrier is weak or delayed, the whole control system can become unstable.
Proper optocoupler biasing ensures accurate feedback in SMPS. The LED must operate within its ideal current range, and the phototransistor must reliably drive the PWM controller. Choosing a device with tight CTR tolerance and accounting for temperature and aging effects helps maintain stable regulation. Following datasheet guidelines and testing across conditions ensures long-term performance.
Optocoupler biasing is not just a matter of turning on a light. It’s about tuning a critical analog link in a high-speed control system. Mastering this ensures your SMPS design is not only functional but also reliable and efficient.
Coming Up
In the next article, we’ll explore compensation network design in isolated SMPS loops. You’ll learn how to:
- Select and design Type II or Type III compensation
- Set crossover frequency and phase margin
- Account for optocoupler bandwidth and nonlinearities
Applicable Part Numbers
| DigiKey Part Number | Manufacturer Part Number |
|---|---|
| LT1431CS8#TRPBFTR-ND,LT1431CS8#TRPBFCT-ND,LT1431CS8#TRPBFDKR-ND | LT1431CS8#TRPBF |
| LT1431IS8#TRPBFTR-ND,LT1431IS8#TRPBFCT-ND,LT1431IS8#TRPBFDKR-ND | LT1431IS8#TRPBF |
| LT1431MPS8#PBF-ND | LT1431MPS8#PBF |
| 505-LT1431IZ#PBF-ND | LT1431IZ#PBF |
| LT1431CS8#PBF-ND | LT1431CS8#PBF |
| LT1431IS8#PBF-ND | LT1431IS8#PBF |
| LT1431CZ#PBF-ND | LT1431CZ#PBF |
| LT1431CN8#PBF-ND | LT1431CN8#PBF |
| LT1431IN8#PBF-ND | LT1431IN8#PBF |
| 2156-LT1431IN8#PBF-ND | LT1431IN8#PBF |
| LT1431IZ#TRPBF-ND | LT1431IZ#TRPBF |
| 505-LT1431MPS8#TRPBFTR-ND | LT1431MPS8#TRPBF |
| LT1431CN8-ND | LT1431CN8 |
| LT1431CS8-ND | LT1431CS8 |
| LT1431CS8TR-ND | LT1431CS8#TR |
| LT1431IN8-ND | LT1431IN8 |
| LT1431IS8-ND | LT1431IS8 |
| LT1431CZ#AMMO-ND | LT1431CZ#AMMO |
| LT1431IZ#TR-ND | LT1431IZ#TR |
| LT1431CZ#TR-ND | LT1431CZ#TR |
| LT1431IS8#TR-ND | LT1431IS8#TR |
| LT1431CZ#TRPBF-ND | LT1431CZ#TRPBF |
| LT1431MJ8-ND | LT1431MJ8 |
| 160-1367-5-ND | LTV-817S |
| 160-1361-5-ND | LTV-816S |
| 160-1893-2-ND,160-1893-1-ND,160-1893-6-ND | LTV-817S-TA1 |
| 1080-1197-2-ND,1080-1197-1-ND,1080-1197-6-ND | EL3H7(B)(TA)-VG |
| 160-1337-2-ND,160-1337-1-ND,160-1337-6-ND | LTV-356T |
| 160-1339-2-ND,160-1339-1-ND,160-1339-6-ND | LTV-357T |
| 160-1911-2-ND,160-1911-1-ND,160-1911-6-ND | 4N35S-TA1 |
| 160-1892-2-ND,160-1892-1-ND,160-1892-6-ND | LTV-816S-TA1 |
| VO618A-3X017TTR-ND,VO618A-3X017TCT-ND,VO618A-3X017TDKR-ND | VO618A-3X017T |
| 160-LTV-817S-TA1-ATR-ND,160-LTV-817S-TA1-ACT-ND,160-LTV-817S-TA1-ADKR-ND | LTV-817S-TA1-A |
| 1080-1198-2-ND,1080-1198-1-ND,1080-1198-6-ND | EL3H7(TA)-VG |
| 58-ISP281DTR-ND,58-ISP281DCT-ND,58-ISP281DDKR-ND | ISP281D |
| 751-1267-5-ND | CNY17-3 |
| 1080-1537-2-ND,1080-1537-1-ND,1080-1537-6-ND | EL3H7(C)(TA)-VG |
| 160-1335-2-ND,160-1335-1-ND,160-1335-6-ND | LTV-355T |
| 160-LTV-356T-BTR-ND,160-LTV-356T-BCT-ND,160-LTV-356T-BDKR-ND | LTV-356T-B |
| TLP291(GB-TPSETR-ND,TLP291(GB-TPSECT-ND,TLP291(GB-TPSEDKR-ND | TLP291(GB-TP,SE |
| 160-2040-2-ND,160-2040-1-ND,160-2040-6-ND | LTV-827S-TA1 |
| TLP291(GBSE-ND | TLP291(GB,SE |
| TLP185(GB-TPLSETR-ND,TLP185(GB-TPLSECT-ND,TLP185(GB-TPLSEDKR-ND | TLP185(GB-TPL,SE |
| TLP291(BLL-TPSETR-ND,TLP291(BLL-TPSECT-ND,TLP291(BLL-TPSEDKR-ND | TLP291(BLL-TP,SE |
| TLP291(GR-TPSETR-ND,TLP291(GR-TPSECT-ND,TLP291(GR-TPSEDKR-ND | TLP291(GR-TP,SE |
| TLP291(BL-TPSETR-ND,TLP291(BL-TPSECT-ND,TLP291(BL-TPSEDKR-ND | TLP291(BL-TP,SE |
| FOD817A3SDTR-ND,FOD817A3SDCT-ND,FOD817A3SDDKR-ND | FOD817A3SD |
| FOD817D3SDTR-ND,FOD817D3SDCT-ND,FOD817D3SDDKR-ND | FOD817D3SD |
| FOD817DSDTR-ND,FOD817DSDCT-ND,FOD817DSDDKR-ND | FOD817DSD |
| 160-1333-2-ND,160-1333-1-ND,160-1333-6-ND | LTV-354T |
| TLP183(BL-TPLETR-ND,TLP183(BL-TPLECT-ND,TLP183(BL-TPLEDKR-ND | TLP183(BL-TPL,E |
| TLP293(GB-TPLETR-ND,TLP293(GB-TPLECT-ND,TLP293(GB-TPLEDKR-ND | TLP293(GB-TPL,E |
| TLP293(GR-TPLETR-ND,TLP293(GR-TPLECT-ND,TLP293(GR-TPLEDKR-ND | TLP293(GR-TPL,E |
| 160-1891-2-ND,160-1891-1-ND,160-1891-6-ND | LTV-814S-TA1 |
| 160-2256-2-ND,160-2256-1-ND,160-2256-6-ND | LTV-814S-TA |
| TLP183(TPLETR-ND,TLP183(TPLECT-ND,TLP183(TPLEDKR-ND | TLP183(TPL,E |
| TLP183(GB-TPLETR-ND,TLP183(GB-TPLECT-ND,TLP183(GB-TPLEDKR-ND | TLP183(GB-TPL,E |
| TLP293(GRL-TPLETR-ND,TLP293(GRL-TPLECT-ND,TLP293(GRL-TPLEDKR-ND | TLP293(GRL-TPL,E |
| TLP293(BL-TPLETR-ND,TLP293(BL-TPLECT-ND,TLP293(BL-TPLEDKR-ND | TLP293(BL-TPL,E |
| FOD817B3SDTR-ND,FOD817B3SDCT-ND,FOD817B3SDDKR-ND | FOD817B3SD |
| VOS617A-3TTR-ND,VOS617A-3TCT-ND,VOS617A-3TDKR-ND | VOS617A-3T |
| VOS618A-3TTR-ND,VOS618A-3TCT-ND,VOS618A-3TDKR-ND | VOS618A-3T |
| VOS617A-4TTR-ND,VOS617A-4TCT-ND,VOS617A-4TDKR-ND | VOS617A-4T |
| 516-2722-2-ND,516-2722-1-ND,516-2722-6-ND | HCPL-817-500E |
| VOS618A-3X001TTR-ND,VOS618A-3X001TCT-ND,VOS618A-3X001TDKR-ND | VOS618A-3X001T |
| 516-2580-2-ND,516-2580-1-ND,516-2580-6-ND | HCPL-817-50DE |
| 751-1346-2-ND,751-1346-1-ND,751-1346-6-ND | SFH6156-2T |
| VOS617A-3X001TTR-ND,VOS617A-3X001TCT-ND,VOS617A-3X001TDKR-ND | VOS617A-3X001T |
| 751-1348-2-ND,751-1348-1-ND,751-1348-6-ND | SFH6156-4T |
| VOS617A-7X001TTR-ND,VOS617A-7X001TCT-ND,VOS617A-7X001TDKR-ND | VOS617A-7X001T |
| VOS617A-7TTR-ND,VOS617A-7TCT-ND,VOS617A-7TDKR-ND | VOS617A-7T |
| TLP292(GB-TPLETR-ND,TLP292(GB-TPLECT-ND,TLP292(GB-TPLEDKR-ND | TLP292(GB-TPL,E |
| TLP182(BL-TPLETR-ND,TLP182(BL-TPLECT-ND,TLP182(BL-TPLEDKR-ND | TLP182(BL-TPL,E |
| 160-2036-2-ND,160-2036-1-ND,160-2036-6-ND | LTV-814HS-TA1 |
| MOCD207M-ND | MOCD207M |
| FOD814ASDTR-ND,FOD814ASDCT-ND,FOD814ASDDKR-ND | FOD814ASD |
| VOL618A-3TTR-ND,VOL618A-3TCT-ND,VOL618A-3TDKR-ND | VOL618A-3T |
| FODM121R2TR-ND,FODM121R2CT-ND,FODM121R2DKR-ND | FODM121R2 |
| 751-TCMT1109TR-ND,751-TCMT1109CT-ND,751-TCMT1109DKR-ND | TCMT1109 |
| FODM217AR2OSTR-ND,FODM217AR2OSCT-ND,FODM217AR2OSDKR-ND | FODM217AR2 |
| TCMT1106TR-ND,TCMT1106CT-ND,TCMT1106DKR-ND | TCMT1106 |
| TCMT1100TR-ND,TCMT1100CT-ND,TCMT1100DKR-ND | TCMT1100 |
| FODM124R2TR-ND,FODM124R2CT-ND,FODM124R2DKR-ND | FODM124R2 |
| 751-TCMT1103TR-ND,751-TCMT1103CT-ND,751-TCMT1103DKR-ND | TCMT1103 |
| TCMT1107TR-ND,TCMT1107CT-ND,TCMT1107DKR-ND | TCMT1107 |
| 488-FODM217BR2TR-ND,488-FODM217BR2CT-ND,488-FODM217BR2DKR-ND | FODM217BR2 |
| 516-1787-2-ND,516-1787-1-ND,516-1787-6-ND | HCPL-181-00BE |
| 516-1646-2-ND,516-1646-1-ND,516-1646-6-ND | HCPL-181-000E |
| 516-1788-2-ND,516-1788-1-ND,516-1788-6-ND | HCPL-181-00CE |
| FOD814SDTR-ND,FOD814SDCT-ND,FOD814SDDKR-ND | FOD814SD |
| 160-2035-2-ND,160-2035-1-ND,160-2035-6-ND | LTV-8141S-TA1 |
| 160-1331-2-ND,160-1331-1-ND,160-1331-6-ND | LTV-352T |
| 516-2893-2-ND,516-2893-1-ND,516-2893-6-ND | ACPL-217-50BE |
| 516-1978-2-ND,516-1978-1-ND,516-1978-6-ND | ACPL-217-500E |
| 516-2894-2-ND,516-2894-1-ND,516-2894-6-ND | ACPL-217-50DE |
| HMHA2801R2TR-ND,HMHA2801R2CT-ND,HMHA2801R2DKR-ND | HMHA2801R2 |
| FODM2705R2TR-ND,FODM2705R2CT-ND,FODM2705R2DKR-ND | FODM2705R2 |
| 160-1790-2-ND,160-1790-1-ND,160-1790-6-ND | 6N136S-TA1 |
| 516-2896-2-ND,516-2896-1-ND,516-2896-6-ND | ACPL-217-56BE |
| TCLT1003TR-ND,TCLT1003CT-ND,TCLT1003DKR-ND | TCLT1003 |
| TCLT1009TR-ND,TCLT1009CT-ND,TCLT1009DKR-ND | TCLT1009 |
| VOS627A-X001TTR-ND,VOS627A-X001TCT-ND,VOS627A-X001TDKR-ND | VOS627A-X001T |
| HMHA281R2TR-ND,HMHA281R2CT-ND,HMHA281R2DKR-ND | HMHA281R2 |
| TCLT1600TR-ND,TCLT1600CT-ND,TCLT1600DKR-ND | TCLT1600 |
| TCMD1000TR-ND,TCMD1000CT-ND,TCMD1000DKR-ND | TCMD1000 |
| 751-1374-2-ND,751-1374-1-ND,751-1374-6-ND | TCMT1600 |
| 516-2988-2-ND,516-2988-1-ND,516-2988-6-ND | HCPL-354-06AE |
| 559-1127-ND | PS2501L-1-L-A |
| 1855-1004-2-ND,1855-1004-1-ND,1855-1004-6-ND | PC357N1J000F |
| MOC207R2MTR-ND,MOC207R2MCT-ND,MOC207R2MDKR-ND | MOC207R2M |
| 516-2218-2-ND,516-2218-1-ND,516-2218-6-ND | ACPL-214-500E |
| 1855-1023-2-ND,1855-1023-1-ND,1855-1023-6-ND | PC357NJ0000F |
| 1855-1005-2-ND,1855-1005-1-ND,1855-1005-6-ND | PC357N2J000F |
| 1855-1022-2-ND,1855-1022-1-ND,1855-1022-6-ND | PC357N4J000F |
| 1855-1006-2-ND,1855-1006-1-ND,1855-1006-6-ND | PC357N3J000F |
| TLP188(TPLETR-ND,TLP188(TPLECT-ND,TLP188(TPLEDKR-ND | TLP188(TPL,E |
| 559-1038-2-ND,559-1038-1-ND,559-1038-6-ND | PS2801C-1-F3-A |
| IS127TR-ND,IS127CT-ND,IS127DKR-ND | IS127 |
| MCT62-ND | MCT62 |
| 160-1365-5-ND | LTV-846S |
| MCT6-ND | MCT6 |
| 1855-1034-2-ND,1855-1034-1-ND,1855-1034-6-ND | PC354NJ0000F |
| MOCD213M-ND | MOCD213M |
| MOCD217M-ND | MOCD217M |
| MOCD213R2MTR-ND,MOCD213R2MCT-ND,MOCD213R2MDKR-ND | MOCD213R2M |
| 559-1027-2-ND,559-1027-1-ND,559-1027-6-ND | PS2702-1-F3-A |
| FOD8523SDTR-ND,FOD8523SDCT-ND,FOD8523SDDKR-ND | FOD8523SD |
| MCT9001SDTR-ND,MCT9001SDCT-ND,MCT9001SDDKR-ND | MCT9001SD |
| 559-1154-2-ND,559-1154-1-ND,559-1154-6-ND | PS2701A-1-F3-A |
| 559-1155-2-ND,559-1155-1-ND,559-1155-6-ND | PS2703-1-F3-A |
| MCT62SDTR-ND,MCT62SDCT-ND,MCT62SDDKR-ND | MCT62SD |
| FOD852SDTR-ND,FOD852SDCT-ND,FOD852SDDKR-ND | FOD852SD |
| 1855-1007-2-ND,1855-1007-1-ND,1855-1007-6-ND | PC3H710NIP1H |
| 160-1371-5-ND | LTV-847S |
| 559-1050-2-ND,559-1050-1-ND,559-1050-6-ND | PS2811-1-F3-A |
| TLP187(TPLETR-ND,TLP187(TPLECT-ND,TLP187(TPLEDKR-ND | TLP187(TPL,E |
| 160-1370-5-ND | LTV-847 |
| MOCD207R2MTR-ND,MOCD207R2MCT-ND,MOCD207R2MDKR-ND | MOCD207R2M |
| 751-1288-2-ND,751-1288-1-ND,751-1288-6-ND | IL217AT |
| 160-2255-2-ND,160-2255-1-ND,160-2255-6-ND | LTV-247 |
| MOCD223M-ND | MOCD223M |
| 1855-1024-2-ND,1855-1024-1-ND,1855-1024-6-ND | PC364NJ0000F |
| 1080-1200-2-ND,1080-1200-1-ND,1080-1200-6-ND | ELD207(TA)-V |
| MOCD223R2MTR-ND,MOCD223R2MCT-ND,MOCD223R2MDKR-ND | MOCD223R2M |
| 1855-1025-2-ND,1855-1025-1-ND,1855-1025-6-ND | PC365NJ0000F |
| 559-1031-2-ND,559-1031-1-ND,559-1031-6-ND | PS2705A-1-F3-A |
| 516-2616-2-ND,516-2616-1-ND,516-2616-6-ND | ACPL-227-500E |
| 160-2041-5-ND | LTV-845 |
| 516-ACPL-227-50CETR-ND,516-ACPL-227-50CECT-ND,516-ACPL-227-50CEDKR-ND | ACPL-227-50CE |
| TLP109(TPLETR-ND,TLP109(TPLECT-ND,TLP109(TPLEDKR-ND | TLP109(TPL,E |
| 160-2042-5-ND | LTV-845S |
| 751-1312-2-ND,751-1312-1-ND,751-1312-6-ND | ILD213T |
| 559-1032-2-ND,559-1032-1-ND,559-1032-6-ND | PS2706-1-F3-A |
| SFH619A-X007TTR-ND,SFH619A-X007TCT-ND,SFH619A-X007TDKR-ND | SFH619A-X007T |
| 160-1349-5-ND | LTV-844S |
| 751-1313-2-ND,751-1313-1-ND,751-1313-6-ND | ILD217T |
| ILD1207TTR-ND,ILD1207TCT-ND,ILD1207TDKR-ND | ILD1207T |
| TLP291-4(TPE)TR-ND,TLP291-4(TPE)CT-ND,TLP291-4(TPE)DKR-ND | TLP291-4(TP,E) |
| TLP291-4(GB-TPE)TR-ND,TLP291-4(GB-TPE)CT-ND,TLP291-4(GB-TPE)DKR-ND | TLP291-4(GB-TP,E) |
| 559-1041-2-ND,559-1041-1-ND,559-1041-6-ND | PS2802-1-F3-A |
| 559-1018-ND | PS2506-1-A |
| IS281-4TR-ND,IS281-4CT-ND,IS281-4DKR-ND | IS281-4 |
| 516-3753-2-ND,516-3753-1-ND,516-3753-6-ND | ACPL-224-500E |
| 751-1261-5-ND | 6N136 |
| H11F1M-ND | H11F1M |
| H11F1SM-ND | H11F1SM |
| 212-CPC1001NTR-ND,212-CPC1001NTRCT-ND,212-CPC1001NTRDKR-ND | CPC1001NTR |
| IS2801-4TR-ND,IS2801-4CT-ND,IS2801-4DKR-ND | IS2801-4 |
| TLP290-4(GB-TPE)TR-ND,TLP290-4(GB-TPE)CT-ND,TLP290-4(GB-TPE)DKR-ND | TLP290-4(GB-TP,E) |
| IS281-4GBTR-ND,IS281-4GBCT-ND,IS281-4GBDKR-ND | IS281-4GB |
| TLP290-4(TPETR-ND,TLP290-4(TPECT-ND,TLP290-4(TPEDKR-ND | TLP290-4(TP,E |
| TLP293-4(V4GBTPETR-ND,TLP293-4(V4GBTPECT-ND,TLP293-4(V4GBTPEDKR-ND | TLP293-4(V4GBTPE |
| TLP293-4(LGBTPETR-ND,TLP293-4(LGBTPECT-ND,TLP293-4(LGBTPEDKR-ND | TLP293-4(LGBTP,E |
| TLP293-4(GB-TPETR-ND,TLP293-4(GB-TPECT-ND,TLP293-4(GB-TPEDKR-ND | TLP293-4(GB-TP,E |
| TLP293-4(TPETR-ND,TLP293-4(TPECT-ND,TLP293-4(TPEDKR-ND | TLP293-4(TP,E |
| TLP293-4(LGBTRETR-ND,TLP293-4(LGBTRECT-ND,TLP293-4(LGBTREDKR-ND | TLP293-4(LGBTR,E |
| TLP293-4(GBE-ND | TLP293-4(GB,E |
| 255-3874-2-ND,255-3874-1-ND,255-3874-6-ND | APV2111VY |
| 516-1601-5-ND | 6N139-000E |
| H11F1SR2MTR-ND,H11F1SR2MCT-ND,H11F1SR2MDKR-ND | H11F1SR2M |
| FODM8801CR2TR-ND,FODM8801CR2CT-ND,FODM8801CR2DKR-ND | FODM8801CR2 |
| 516-6N139-500ETR-ND,516-6N139-500ECT-ND,516-6N139-500EDKR-ND | 6N139-500E |
| TLP292-4(GB-TPETR-ND,TLP292-4(GB-TPECT-ND,TLP292-4(GB-TPEDKR-ND | TLP292-4(GB-TP,E |
| TLP292-4(LGBTPETR-ND,TLP292-4(LGBTPECT-ND,TLP292-4(LGBTPEDKR-ND | TLP292-4(LGBTP,E |
| PS2501-4XSM-ND | PS2501-4XSM |
| 264-TLP3905(TPL,ETR-ND,264-TLP3905(TPL,ECT-ND,264-TLP3905(TPL,EDKR-ND | TLP3905(TPL,E |
| TLP3906(TPLETR-ND,TLP3906(TPLECT-ND,TLP3906(TPLEDKR-ND | TLP3906(TPL,E |
| FODM8801CFS-ND | FODM8801C |
| VOM1271TTR-ND,VOM1271TCT-ND,VOM1271TDKR-ND | VOM1271T |
| TCMT4100T0TR-ND,TCMT4100T0CT-ND,TCMT4100T0DKR-ND | TCMT4100T0 |
| VOMA617A-3X001TTR-ND,VOMA617A-3X001TCT-ND,VOMA617A-3X001TDKR-ND | VOMA617A-3X001T |
| 751-1375-2-ND,751-1375-1-ND,751-1375-6-ND | TCMT4100 |
| 516-2176-5-ND | ACPL-847-300E |
| 1855-1035-2-ND,1855-1035-1-ND,1855-1035-6-ND | PC452J00000F |
| 255-3339-2-ND,255-3339-1-ND,255-3339-6-ND | APV1121SX |
| 559-1022-2-ND,559-1022-1-ND,559-1022-6-ND | PS2533L-1-F3-A |
| IS2805-4TR-ND,IS2805-4CT-ND,IS2805-4DKR-ND | IS2805-4 |
| FODM8801CR2VTR-ND,FODM8801CR2VCT-ND,FODM8801CR2VDKR-ND | FODM8801CR2V |
| 160-1914-2-ND,160-1914-1-ND,160-1914-6-ND | CNY17-4S-TA1 |
| 516-2466-2-ND,516-2466-1-ND,516-2466-6-ND | ACPL-247-500E |
| 255-5976-2-ND,255-5976-1-ND,255-5976-6-ND | APV2111VW |
| 559-1061-2-ND,559-1061-1-ND,559-1061-6-ND | PS2913-1-F3-AX |
| 559-1056-2-ND,559-1056-1-ND,559-1056-6-ND | PS2833-1-F3-A |
| 516-2219-2-ND,516-2219-1-ND,516-2219-6-ND | ACPL-247-560E |
| 5656-CPC1301GRTR-ND,5656-CPC1301GRTRCT-ND,5656-CPC1301GRTRDKR-ND | CPC1301GRTR |
| 751-1376-2-ND,751-1376-1-ND,751-1376-6-ND | TCMT4600 |
| 751-TCMD4000TR-ND,751-TCMD4000CT-ND,751-TCMD4000DKR-ND | TCMD4000 |
| VOMA617A-X001TTR-ND,VOMA617A-X001TCT-ND,VOMA617A-X001TDKR-ND | VOMA617A-X001T |
| TCMT4600T0TR-ND,TCMT4600T0CT-ND,TCMT4600T0DKR-ND | TCMT4600T0 |
| 516-1612-5-ND | HCNW139-000E |
| 559-1062-2-ND,559-1062-1-ND,559-1062-6-ND | PS2915-1-F3-AX |
| 516-4191-2-ND,516-4191-1-ND,516-4191-6-ND | HCNW139-500E |
| 1855-1036-2-ND,1855-1036-1-ND,1855-1036-6-ND | PC457L0NIP0F |
| 516-1529-2-ND,516-1529-1-ND,516-1529-6-ND | HCPL-0501-500E |
| 516-2971-2-ND,516-2971-1-ND,516-2971-6-ND | HCPL-0453-500E |
| FODM452R2TR-ND,FODM452R2CT-ND,FODM452R2DKR-ND | FODM452R2 |
| 516-2696-2-ND,516-2696-1-ND,516-2696-6-ND | HCNW136-500E |
| HCPL2731SDMTR-ND,HCPL2731SDMCT-ND,HCPL2731SDMDKR-ND | HCPL2731SDM |
| 516-2898-2-ND,516-2898-1-ND,516-2898-6-ND | ACPL-244-500E |
| 559-1040-2-ND,559-1040-1-ND,559-1040-6-ND | PS2801C-4-F3-A |
| 255-2656-ND | APV1121S |
| 516-2515-2-ND,516-2515-1-ND,516-2515-6-ND | HCPL-4503-500E |
| 516-1637-5-ND | HCPL-0701-000E |
| 516-1488-2-ND,516-1488-1-ND,516-1488-6-ND | HCPL-0701-500E |
| 516-3754-2-ND,516-3754-1-ND,516-3754-6-ND | ACPL-244-560E |
| HCPL0701R2TR-ND,HCPL0701R2CT-ND,HCPL0701R2DKR-ND | HCPL0701R2 |
| CNY65STTR-ND,CNY65STCT-ND,CNY65STDKR-ND | CNY65ST |
| 516-4227-2-ND,516-4227-1-ND,516-4227-6-ND | HCPL-M452-500E |
| 559-1063-2-ND,559-1063-1-ND,559-1063-6-ND | PS8101-F3-AX |
| 751-1370-5-ND | SFH6916 |
| 365-1032-ND | OPI1264B |
| 365-1033-ND | OPI1264C |
| 516-2727-2-ND,516-2727-1-ND,516-2727-6-ND | HCPL-M453-500E |
| 5656-LOC110STR-ND,5656-LOC110STRCT-ND,5656-LOC110STRDKR-ND | LOC110STR |
| CNY65AGRSTTR-ND,CNY65AGRSTCT-ND,CNY65AGRSTDKR-ND | CNY65AGRST |
| CNY65AYSTTR-ND,CNY65AYSTCT-ND,CNY65AYSTDKR-ND | CNY65AYST |
| 516-2908-2-ND,516-2908-1-ND,516-2908-6-ND | ACPL-M49T-500E |
| 212-LOC110-ND | LOC110 |
| HCPL0731-ND | HCPL0731 |
| HCPL0731R2TR-ND,HCPL0731R2CT-ND,HCPL0731R2DKR-ND | HCPL0731R2 |
| 516-1474-5-ND | HCPL-2531-000E |
| IL300-DEFG-X007-ND | IL300-DEFG-X007 |
| IL300-DEFG-X007TTR-ND,IL300-DEFG-X007TCT-ND,IL300-DEFG-X007TDKR-ND | IL300-DEFG-X007T |
| 264-TLX9000(TPLFTR-ND,264-TLX9000(TPLFCT-ND,264-TLX9000(TPLFDKR-ND | TLX9000(TPL,F |
| 264-TLX9291A(GBTPLFTR-ND,264-TLX9291A(GBTPLFCT-ND,264-TLX9291A(GBTPLFDKR-ND | TLX9291A(GBTPL,F |
| 264-TLX9300(TPLFTR-ND,264-TLX9300(TPLFCT-ND,264-TLX9300(TPLFDKR-ND | TLX9300(TPL,F |
| 264-TLX9185A(GBTPLFTR-ND,264-TLX9185A(GBTPLFCT-ND,264-TLX9185A(GBTPLFDKR-ND | TLX9185A(GBTPL,F |
| 516-2707-2-ND,516-2707-1-ND,516-2707-6-ND | HCPL-2531-500E |
| 5656-LOC111PTR-ND,5656-LOC111PTRCT-ND,5656-LOC111PTRDKR-ND | LOC111PTR |
| 516-2969-2-ND,516-2969-1-ND,516-2969-6-ND | HCNW4503-500E |
| 516-1621-5-ND | HCNW4503-300E |
| 559-1103-2-ND,559-1103-1-ND,559-1103-6-ND | PS2802-4-F3-A |
| 5656-LOC111-ND | LOC111 |
| LH1262CACTRTR-ND,LH1262CACTRCT-ND,LH1262CACTRDKR-ND | LH1262CACTR |
| 516-ACPL-K70A-500ETR-ND,516-ACPL-K70A-500ECT-ND,516-ACPL-K70A-500EDKR-ND | ACPL-K70A-500E |
| 751-1293-5-ND | IL300-DEFG |
| 516-ACPL-K70A-560ETR-ND,516-ACPL-K70A-560ECT-ND,516-ACPL-K70A-560EDKR-ND | ACPL-K70A-560E |
| 559-1053-2-ND,559-1053-1-ND,559-1053-6-ND | PS2811-4-F3-A |
| 516-2237-2-ND,516-2237-1-ND,516-2237-6-ND | ACPL-M43T-500E |
| 516-1543-5-ND | HCPL-2731-000E |
| 516-2698-2-ND,516-2698-1-ND,516-2698-6-ND | HCPL-0530-500E |
| 559-PS2815-4-F3-ATR-ND,559-PS2815-4-F3-ACT-ND,559-PS2815-4-F3-ADKR-ND | PS2815-4-F3-A |
| 264-TLX9906(TPLFTR-ND,264-TLX9906(TPLFCT-ND,264-TLX9906(TPLFDKR-ND | TLX9906(TPL,F |
| 516-1530-5-ND | HCPL-0531-000E |
| 516-1484-2-ND,516-1484-1-ND,516-1484-6-ND | HCPL-0531-500E |
| 516-3223-2-ND,516-3223-1-ND,516-3223-6-ND | HCPL-053L-500E |
| 516-2161-5-ND | ACPL-054L-000E |
| 516-4038-2-ND,516-4038-1-ND,516-4038-6-ND | HCNR200-500E |
| 516-1608-5-ND | HCNR200-300E |
| 516-1627-ND | HCPL-0370-000E |
| 516-3683-2-ND,516-3683-1-ND,516-3683-6-ND | ACPL-054L-500E |
| 516-4193-2-ND,516-4193-1-ND,516-4193-6-ND | HCPL-0370-500E |
| 264-TLX9175J(TPLFTR-ND,264-TLX9175J(TPLFCT-ND,264-TLX9175J(TPLFDKR-ND | TLX9175J(TPL,F |
| 516-1545-5-ND | HCPL-3700-000E |
| 516-1676-5-ND | HCPL-3700-300E |
| 516-3211-2-ND,516-3211-1-ND,516-3211-6-ND | HCPL-3700-500E |
| 516-1641-5-ND | HCPL-0730-000E |
| 516-4202-2-ND,516-4202-1-ND,516-4202-6-ND | HCPL-0730-500E |
| 516-4204-2-ND,516-4204-1-ND,516-4204-6-ND | HCPL-073L-500E |
| 559-PS2841-4A-F3-AXTR-ND,559-PS2841-4A-F3-AXCT-ND,559-PS2841-4A-F3-AXDKR-ND | PS2841-4A-F3-AX |
| 559-PS2841-4B-F3-AXTR-ND,559-PS2841-4B-F3-AXCT-ND,559-PS2841-4B-F3-AXDKR-ND | PS2841-4B-F3-AX |
| IL300-EF-X009TTR-ND,IL300-EF-X009TCT-ND,IL300-EF-X009TDKR-ND | IL300-EF-X009T |
| 516-1535-2-ND,516-1535-1-ND,516-1535-6-ND | HCPL-0731-500E |
| 516-1523-5-ND | HCNR201-000E |
| 516-1609-5-ND | HCNR201-300E |
| 516-1773-2-ND,516-1773-1-ND,516-1773-6-ND | HCNR201-500E |
| 516-2379-5-ND | HCNR201-050E |
| 516-3916-2-ND,516-3916-1-ND,516-3916-6-ND | HCNR201-550E |
| 516-4194-2-ND,516-4194-1-ND,516-4194-6-ND | HCPL-0534-500E |
| 516-1677-5-ND | HCPL-3760-000E |
| 516-4057-2-ND,516-4057-1-ND,516-4057-6-ND | HCPL-3760-500E |
| 516-1743-5-ND | HCPL-3760-300E |
| 516-ACPL-K73A-560ETR-ND,516-ACPL-K73A-560ECT-ND,516-ACPL-K73A-560EDKR-ND | ACPL-K73A-560E |
| PVI5080NSPBF-ND | PVI5080NSPBF |
| 264-TLX9160T(TPLFTR-ND,264-TLX9160T(TPLFCT-ND,264-TLX9160T(TPLFDKR-ND | TLX9160T(TPL,F |
| 751-1296-5-ND | IL300-F |
| IL300-F-X009TTR-ND,IL300-F-X009TCT-ND,IL300-F-X009TDKR-ND | IL300-F-X009T |
| IL300-F-X007-ND | IL300-F-X007 |
| 751-1294-5-ND | IL300-E |
| 365-1909-ND | 4N49UTX |
| 365-1853-ND | OPI150 |
| 3320-OLS300-ND | OLS300 |
| 3320-OLS910-ND | OLS910 |
| 2244-OPTO-150-ND | OPTO-150 |
| 2244-OR-100-ND | OR-100 |
| 516-1834-5-ND | 6N140A |
| 3320-OLS249-ND | OLS249 |
| 516-2610-5-ND | 6N140A#300 |
| 3320-OLS449-ND | OLS449 |
| 516-2171-ND | 6N140A/883B |
| 516-2597-5-ND | 8302401EA |
| 516-2549-ND | HCPL-5731 |
| 3320-OLS2449-ND | OLS2449 |
| FOD817B300W-ND | FOD817B300W |
| 31-DPC817S-C-TR-ND,31-DPC817S-C-TRCT-ND,31-DPC817S-C-TRDKR-ND | DPC817S-C-TR |
| 31-DPC817S-B-TR-ND,31-DPC817S-B-TRCT-ND,31-DPC817S-B-TRDKR-ND | DPC817S-B-TR |
| 160-1366-5-ND | LTV-817 |
| PC817X2NSZ9F-ND | PC817X2NSZ9F |
| 732-140357145000TR-ND,732-140357145000CT-ND,732-140357145000DKR-ND | 1.40357E+11 |
| 732-140357145400TR-ND,732-140357145400CT-ND,732-140357145400DKR-ND | 1.40357E+11 |
| 732-140100146000TR-ND,732-140100146000CT-ND,732-140100146000DKR-ND | 1.401E+11 |
| 732-140357145200TR-ND,732-140357145200CT-ND,732-140357145200DKR-ND | 1.40357E+11 |
| 732-140106146000TR-ND,732-140106146000CT-ND,732-140106146000DKR-ND | 1.40106E+11 |
| 732-140357145100TR-ND,732-140357145100CT-ND,732-140357145100DKR-ND | 1.40357E+11 |
| 732-140817143400TR-ND,732-140817143400CT-ND,732-140817143400DKR-ND | 1.40817E+11 |
| 732-140108146000TR-ND,732-140108146000CT-ND,732-140108146000DKR-ND | 1.40108E+11 |
| 732-140817143200TR-ND,732-140817143200CT-ND,732-140817143200DKR-ND | 1.40817E+11 |
| 160-1360-5-ND | LTV-816 |
| 160-2037-5-ND | LTV-817-A |
| 160-LTV-814S-TA1-ATR-ND,160-LTV-814S-TA1-ACT-ND,160-LTV-814S-TA1-ADKR-ND | LTV-814S-TA1-A |
| FOD817D-ND | FOD817D |
| 2007-APC-817D1-SLTR-ND,2007-APC-817D1-SLCT-ND,2007-APC-817D1-SLDKR-ND | APC-817D1-SL |
| 2007-APC-817B1-SLTR-ND,2007-APC-817B1-SLCT-ND,2007-APC-817B1-SLDKR-ND | APC-817B1-SL |
| 2007-APC-817A1-SLTR-ND,2007-APC-817A1-SLCT-ND,2007-APC-817A1-SLDKR-ND | APC-817A1-SL |
| 2007-APC-817C1-SLTR-ND,2007-APC-817C1-SLCT-ND,2007-APC-817C1-SLDKR-ND | APC-817C1-SL |
| LTV-817-C-ND | LTV-817-C |
| FOD817B-ND | FOD817B |
| 160-1304-5-ND | 4N35 |
| 160-2038-2-ND,160-2038-1-ND,160-2038-6-ND | LTV-817S-TA |
| 160-LTV-816S-TATR-ND,160-LTV-816S-TACT-ND,160-LTV-816S-TADKR-ND | LTV-816S-TA |
| FOD817DS-ND | FOD817DS |
| LTV-817S-B-ND | LTV-817S-B |
| FOD817A3S-ND | FOD817A3S |
| FOD817A300-ND | FOD817A300 |
| LTV-817S-D-ND | LTV-817S-D |
| LTV-817S-A-ND | LTV-817S-A |
| FOD817B3S-ND | FOD817B3S |
| VO618A-4X017TTR-ND,VO618A-4X017TCT-ND,VO618A-4X017TDKR-ND | VO618A-4X017T |
| VO617A-3X017TTR-ND,VO617A-3X017TCT-ND,VO617A-3X017TDKR-ND | VO617A-3X017T |
| 160-1318-5-ND | CNY17F-2 |
| 160-LTV-816S-TA1-DTR-ND,160-LTV-816S-TA1-DCT-ND,160-LTV-816S-TA1-DDKR-ND | LTV-816S-TA1-D |
| VO618A-4X016-ND | VO618A-4X016 |
| VO617A-ND | VO617A |
| 160-LTV-817S-TA1-BTR-ND,160-LTV-817S-TA1-BCT-ND,160-LTV-817S-TA1-BDKR-ND | LTV-817S-TA1-B |
| 160-1300-5-ND | 4N25 |
| VO615A-8X017TTR-ND,VO615A-8X017TCT-ND,VO615A-8X017TDKR-ND | VO615A-8X017T |
| 160-LTV-817S-TA1-CTR-ND,160-LTV-817S-TA1-CCT-ND,160-LTV-817S-TA1-CDKR-ND | LTV-817S-TA1-C |
| VO615A-6X017TTR-ND,VO615A-6X017TCT-ND,VO615A-6X017TDKR-ND | VO615A-6X017T |
| 732-140354245000TR-ND,732-140354245000CT-ND,732-140354245000DKR-ND | 1.40354E+11 |
| 160-LTV-816S-TA1-CTR-ND,160-LTV-816S-TA1-CCT-ND,160-LTV-816S-TA1-CDKR-ND | LTV-816S-TA1-C |
| VO617A-3X007TTR-ND,VO617A-3X007TCT-ND,VO617A-3X007TDKR-ND | VO617A-3X007T |
| 732-140814243100TR-ND,732-140814243100CT-ND,732-140814243100DKR-ND | 1.40814E+11 |
| 732-140356145200TR-ND,732-140356145200CT-ND,732-140356145200DKR-ND | 1.40356E+11 |
| 732-140354245100TR-ND,732-140354245100CT-ND,732-140354245100DKR-ND | 1.40354E+11 |
| VO617A-3-ND | VO617A-3 |
| 732-140356145400TR-ND,732-140356145400CT-ND,732-140356145400DKR-ND | 1.40356E+11 |
| VO617A-4X007TTR-ND,VO617A-4X007TCT-ND,VO617A-4X007TDKR-ND | VO617A-4X007T |
| 732-140356145100TR-ND,732-140356145100CT-ND,732-140356145100DKR-ND | 1.40356E+11 |
| VO618A-4-ND | VO618A-4 |
| VO617A-4X016-ND | VO617A-4X016 |
| 732-140814242000TR-ND,732-140814242000CT-ND,732-140814242000DKR-ND | 1.40814E+11 |
| VO618A-3-ND | VO618A-3 |
| 160-1302-5-ND | 4N26 |
| 751-VO618A-3X018TTR-ND,751-VO618A-3X018TCT-ND,751-VO618A-3X018TDKR-ND | VO618A-3X018T |
| VO617A-9-ND | VO617A-9 |
| 160-1306-5-ND | 4N37 |
| FOD817B300-ND | FOD817B300 |
| 160-1305-5-ND | 4N35S |
| 160-1301-5-ND | 4N25S |
| VO615A-9X017TTR-ND,VO615A-9X017TCT-ND,VO615A-9X017TDKR-ND | VO615A-9X017T |
| FOD817-ND | FOD817 |
| FOD817CSDTR-ND,FOD817CSDCT-ND,FOD817CSDDKR-ND | FOD817CSD |
| 160-1320-5-ND | CNY17F-3 |
| FOD817S-ND | FOD817S |
| 160-1322-5-ND | CNY17F-4 |
| 516-1585-5-ND | HCPL-817-000E |
| 160-1314-5-ND | CNY17-4 |
| 160-1312-5-ND | CNY17-3 |
| 160-1310-5-ND | CNY17-2 |
| FOD817CS-ND | FOD817CS |
| 160-1308-5-ND | CNY17-1 |
| FOD817300-ND | FOD817300 |
| FOD817C300-ND | FOD817C300 |
| 160-1313-5-ND | CNY17-3S |
| BPC-817(BBIN)-ND | BPC-817 ( B BIN ) |
| 160-1910-2-ND,160-1910-1-ND,160-1910-6-ND | 4N25S-TA1 |
| 160-1309-5-ND | CNY17-1S |
| 160-1913-2-ND,160-1913-1-ND,160-1913-6-ND | 4N37S-TA1 |
| 2007-BPC-817S(CBIN)TR-ND,2007-BPC-817S(CBIN)CT-ND,2007-BPC-817S(CBIN)DKR-ND | BPC-817S ( C BIN ) |
| 160-1358-5-ND | LTV-815 |
| FOD817C300W-ND | FOD817C300W |
| 160-1311-5-ND | CNY17-2S |
| IS357TR-ND,IS357CT-ND,IS357DKR-ND | IS357 |
| 160-1369-5-ND | LTV-827S |
| 160-1359-5-ND | LTV-815S |
| 160-LTV-357T-BTR-ND,160-LTV-357T-BCT-ND,160-LTV-357T-BDKR-ND | LTV-357T-B |
| 160-LTV-356T-DTR-ND,160-LTV-356T-DCT-ND,160-LTV-356T-DDKR-ND | LTV-356T-D |
| 160-LTV-357T-CTR-ND,160-LTV-357T-CCT-ND,160-LTV-357T-CDKR-ND | LTV-357T-C |
| 160-LTV-356T-ATR-ND,160-LTV-356T-ACT-ND,160-LTV-356T-ADKR-ND | LTV-356T-A |
| IS181BTR-ND,IS181BCT-ND,IS181BDKR-ND | IS181B |
| IS181DTR-ND,IS181DCT-ND,IS181DDKR-ND | IS181D |
| 58-IS357DTR-ND,58-IS357DCT-ND,58-IS357DDKR-ND | IS357D |
| TLP621X-ND | TLP621X |
| PS2501-1X-ND | PS2501-1X |
| FOD817BS-ND | FOD817BS |
| TLP621XGB-ND | TLP621XGB |
| IS181GBTR-ND,IS181GBCT-ND,IS181GBDKR-ND | IS181GB |
| 58-ISP521-1X-ND | ISP521-1X |
| 58-ISP817A-ND | ISP817A |
| 58-TLP521-1X-ND | TLP521-1X |
| 160-2242-2-ND,160-2242-1-ND,160-2242-6-ND | CNY17-3S-TA |
| 160-1885-2-ND,160-1885-1-ND,160-1885-6-ND | CNY17-3S-TA1 |
| 160-1344-5-ND | LTV-814 |
| FOD817BSDTR-ND,FOD817BSDCT-ND,FOD817BSDDKR-ND | FOD817BSD |
| TLP185(GRH-TLSETR-ND,TLP185(GRH-TLSECT-ND,TLP185(GRH-TLSEDKR-ND | TLP185(GRH-TL,SE |
| TLP291(Y-TPSETR-ND,TLP291(Y-TPSECT-ND,TLP291(Y-TPSEDKR-ND | TLP291(Y-TP,SE |
| TLP291(TPSETR-ND,TLP291(TPSECT-ND,TLP291(TPSEDKR-ND | TLP291(TP,SE |
| TLP185(GRL-TLSETR-ND,TLP185(GRL-TLSECT-ND,TLP185(GRL-TLSEDKR-ND | TLP185(GRL-TL,SE |
| VOM617A-9TR-ND,VOM617A-9CT-ND,VOM617A-9DKR-ND | VOM617A-9T |
| VOM617A-3TR-ND,VOM617A-3CT-ND,VOM617A-3DKR-ND | VOM617A-3T |
| VOM618A-3X001TTR-ND,VOM618A-3X001TCT-ND,VOM618A-3X001TDKR-ND | VOM618A-3X001T |
| 264-TLP185(GB-TPR,SETR-ND,264-TLP185(GB-TPR,SECT-ND,264-TLP185(GB-TPR,SEDKR-ND | TLP185(GB-TPR,SE |
| TLP185(GR-TPLSETR-ND,TLP185(GR-TPLSECT-ND,TLP185(GR-TPLSEDKR-ND | TLP185(GR-TPL,SE |
| TLP185(BLL-TLSETR-ND,TLP185(BLL-TLSECT-ND,TLP185(BLL-TLSEDKR-ND | TLP185(BLL-TL,SE |
| VOM618A-3TR-ND,VOM618A-3CT-ND,VOM618A-3DKR-ND | VOM618A-3T |
| TLP185(BL-TPLSETR-ND,TLP185(BL-TPLSECT-ND,TLP185(BL-TPLSEDKR-ND | TLP185(BL-TPL,SE |
| VOM617ATR-ND,VOM617ACT-ND,VOM617ADKR-ND | VOM617AT |
| VOM617A-4TTR-ND,VOM617A-4TCT-ND,VOM617A-4TDKR-ND | VOM617A-4T |
| VOM617A-3X001TTR-ND,VOM617A-3X001TCT-ND,VOM617A-3X001TDKR-ND | VOM617A-3X001T |
| TLP291(GRL-TPSETR-ND,TLP291(GRL-TPSECT-ND,TLP291(GRL-TPSEDKR-ND | TLP291(GRL-TP,SE |
| VOM618A-4TTR-ND,VOM618A-4TCT-ND,VOM618A-4TDKR-ND | VOM618A-4T |
| TLP185(TPLSETR-ND,TLP185(TPLSECT-ND,TLP185(TPLSEDKR-ND | TLP185(TPL,SE |
| 751-VOM617A-6TTR-ND,751-VOM617A-6TCT-ND,751-VOM617A-6TDKR-ND | VOM617A-6T |
| 160-LTV-217-A-GTR-ND,160-LTV-217-A-GCT-ND,160-LTV-217-A-GDKR-ND | LTV-217-A-G |
| 264-TLP185(GR-TPR,SETR-ND,264-TLP185(GR-TPR,SECT-ND,264-TLP185(GR-TPR,SEDKR-ND | TLP185(GR-TPR,SE |
| 264-TLP291(V4GBTP,SETR-ND,264-TLP291(V4GBTP,SECT-ND,264-TLP291(V4GBTP,SEDKR-ND | TLP291(V4GBTP,SE |
| VOM618A-8X001TTR-ND,VOM618A-8X001TCT-ND,VOM618A-8X001TDKR-ND | VOM618A-8X001T |
| VOM617A-4X001TTR-ND,VOM617A-4X001TCT-ND,VOM617A-4X001TDKR-ND | VOM617A-4X001T |
| TLP291(SE-ND | TLP291(SE |
| TLP185(SE-ND | TLP185(SE |
| 160-1345-5-ND | LTV-814S |
| 160-2238-2-ND,160-2238-1-ND,160-2238-6-ND | LTV-217-C-G |
| FOD817C3SDTR-ND,FOD817C3SDCT-ND,FOD817C3SDDKR-ND | FOD817C3SD |
| 160-LTV-217-TP1-B-GTR-ND,160-LTV-217-TP1-B-GCT-ND,160-LTV-217-TP1-B-GDKR-ND | LTV-217-TP1-B-G |
| 516-3001-ND | HCPL-817-00AE |
| FOD817SDTR-ND,FOD817SDCT-ND,FOD817SDDKR-ND | FOD817SD |
| ISP817XSM-ND | ISP817XSM |
| TLP621XSM-ND | TLP621XSM |
| 58-TLP621XGRSM-ND | TLP621XGRSM |
| FOD817ASDTR-ND,FOD817ASDCT-ND,FOD817ASDDKR-ND | FOD817ASD |
| 296-ISOM8110DFHRTR-ND,296-ISOM8110DFHRCT-ND,296-ISOM8110DFHRDKR-ND | ISOM8110DFHR |
| TLP183(GR-TPLETR-ND,TLP183(GR-TPLECT-ND,TLP183(GR-TPLEDKR-ND | TLP183(GR-TPL,E |
| TLP184(GB-TPLSETR-ND,TLP184(GB-TPLSECT-ND,TLP184(GB-TPLSEDKR-ND | TLP184(GB-TPL,SE |
| TLP290(GR-TPSETR-ND,TLP290(GR-TPSECT-ND,TLP290(GR-TPSEDKR-ND | TLP290(GR-TP,SE |
| 160-1350-5-ND | LTV-814H |
| TLP293(TPLETR-ND,TLP293(TPLECT-ND,TLP293(TPLEDKR-ND | TLP293(TPL,E |
| TLP290(TPSETR-ND,TLP290(TPSECT-ND,TLP290(TPSEDKR-ND | TLP290(TP,SE |
| TLP290(BL-TPSETR-ND,TLP290(BL-TPSECT-ND,TLP290(BL-TPSEDKR-ND | TLP290(BL-TP,SE |
| 264-TLP184(TPR,SETR-ND,264-TLP184(TPR,SECT-ND,264-TLP184(TPR,SEDKR-ND | TLP184(TPR,SE |
| TLP293(BLL-TPLETR-ND,TLP293(BLL-TPLECT-ND,TLP293(BLL-TPLEDKR-ND | TLP293(BLL-TPL,E |
| 559-1716-ND | PS2561A-1-H-A |
| TLP293(GRH-TPLETR-ND,TLP293(GRH-TPLECT-ND,TLP293(GRH-TPLEDKR-ND | TLP293(GRH-TPL,E |
| TLP184(BL-TPLSETR-ND,TLP184(BL-TPLSECT-ND,TLP184(BL-TPLSEDKR-ND | TLP184(BL-TPL,SE |
| 264-TLP184(GB-TPR,SETR-ND,264-TLP184(GB-TPR,SECT-ND,264-TLP184(GB-TPR,SEDKR-ND | TLP184(GB-TPR,SE |
| 160-1368-5-ND | LTV-827 |
| 160-1362-5-ND | LTV-826 |
| 58-SFH615A-4XSMT&RTR-ND,58-SFH615A-4XSMT&RCT-ND,58-SFH615A-4XSMT&RDKR-ND | SFH615A-4XSMT&R |
| TLP293(BLE-ND | TLP293(BL,E |
| 296-ISOM8111DFHRTR-ND,296-ISOM8111DFHRCT-ND,296-ISOM8111DFHRDKR-ND | ISOM8111DFHR |
| 58-ISP817XSMT&RTR-ND,58-ISP817XSMT&RCT-ND,58-ISP817XSMT&RDKR-ND | ISP817XSMT&R |
| TLP290(GB-TPSETR-ND,TLP290(GB-TPSECT-ND,TLP290(GB-TPSEDKR-ND | TLP290(GB-TP,SE |
| TLP290(SE-ND | TLP290(SE |
| TLP293(E-ND | TLP293(E |
| FOD814AS-ND | FOD814AS |
| FOD814S-ND | FOD814S |
| 516-1878-5-ND | HCPL-817-300E |
| 516-2226-2-ND,516-2226-1-ND,516-2226-6-ND | HCPL-817-50AE |
| 516-2721-5-ND | HCPL-817-30DE |
| VOS618A-2TTR-ND,VOS618A-2TCT-ND,VOS618A-2TDKR-ND | VOS618A-2T |
| VOS617A-9TTR-ND,VOS617A-9TCT-ND,VOS617A-9TDKR-ND | VOS617A-9T |
| VOS615A-3X001TTR-ND,VOS615A-3X001TCT-ND,VOS615A-3X001TDKR-ND | VOS615A-3X001T |
| VOS617ATTR-ND,VOS617ATCT-ND,VOS617ATDKR-ND | VOS617AT |
| VOS618ATTR-ND,VOS618ATCT-ND,VOS618ATDKR-ND | VOS618AT |
| 160-1363-5-ND | LTV-826S |
| 751-VOS618A-8X001TTR-ND,751-VOS618A-8X001TCT-ND,751-VOS618A-8X001TDKR-ND | VOS618A-8X001T |
| VOS617A-9X001TTR-ND,VOS617A-9X001TCT-ND,VOS617A-9X001TDKR-ND | VOS617A-9X001T |
| VOS618A-8TTR-ND,VOS618A-8TCT-ND,VOS618A-8TDKR-ND | VOS618A-8T |
| VOS615ATTR-ND,VOS615ATCT-ND,VOS615ATDKR-ND | VOS615AT |
| 751-1347-2-ND,751-1347-1-ND,751-1347-6-ND | SFH6156-3T |
| 160-1351-5-ND | LTV-814HS |
| VOS615A-4TTR-ND,VOS615A-4TCT-ND,VOS615A-4TDKR-ND | VOS615A-4T |
| VOS615A-2X001TTR-ND,VOS615A-2X001TCT-ND,VOS615A-2X001TDKR-ND | VOS615A-2X001T |
| 751-VOS617A-8TTR-ND,751-VOS617A-8TCT-ND,751-VOS617A-8TDKR-ND | VOS617A-8T |
| 160-LTV-358TTR-ND,160-LTV-358TCT-ND,160-LTV-358TDKR-ND | LTV-358T |
| 559-1071-ND | PS2501-1-K-A |
| TLP182(GB-TPLETR-ND,TLP182(GB-TPLECT-ND,TLP182(GB-TPLEDKR-ND | TLP182(GB-TPL,E |
| 559-1072-ND | PS2501-1-L-A |
| 1080-EL1017(TA)-VG(DGK)TR-ND,1080-EL1017(TA)-VG(DGK)CT-ND,1080-EL1017(TA)-VG(DGK)DKR-ND | EL1017(TA)-VG(DGK) |
| TLP182(GR-TPLETR-ND,TLP182(GR-TPLECT-ND,TLP182(GR-TPLEDKR-ND | TLP182(GR-TPL,E |
| 160-LTV-826S-TA1TR-ND,160-LTV-826S-TA1CT-ND,160-LTV-826S-TA1DKR-ND | LTV-826S-TA1 |
| 264-TLP292(GR-TPL,ETR-ND,264-TLP292(GR-TPL,ECT-ND,264-TLP292(GR-TPL,EDKR-ND | TLP292(GR-TPL,E |
| 264-TLP385(GR-TPL,ETR-ND,264-TLP385(GR-TPL,ECT-ND,264-TLP385(GR-TPL,EDKR-ND | TLP385(GR-TPL,E |
| TLP292(BL-TPLETR-ND,TLP292(BL-TPLECT-ND,TLP292(BL-TPLEDKR-ND | TLP292(BL-TPL,E |
| 1080-1602-2-ND,1080-1602-1-ND,1080-1602-6-ND | EL814S1(A)(TA)-V |
| 559-1000-ND | PS2501-1-M-A |
| TLP182(TPLETR-ND,TLP182(TPLECT-ND,TLP182(TPLEDKR-ND | TLP182(TPL,E |
| FOD814A-ND | FOD814A |
| FOD8173S-ND | FOD8173S |
| 264-TLP385(GB-TPL,ETR-ND,264-TLP385(GB-TPL,ECT-ND,264-TLP385(GB-TPL,EDKR-ND | TLP385(GB-TPL,E |
| FOD814-ND | FOD814 |
| 4N37MFS-ND | 4N37M |
| VOL617A-4TTR-ND,VOL617A-4TCT-ND,VOL617A-4TDKR-ND | VOL617A-4T |
| FODM121-ND | FODM121 |
| VOL617A-4X001TTR-ND,VOL617A-4X001TCT-ND,VOL617A-4X001TDKR-ND | VOL617A-4X001T |
| VOL617A-8X001TTR-ND,VOL617A-8X001TCT-ND,VOL617A-8X001TDKR-ND | VOL617A-8X001T |
| 516-1577-5-ND | CNY17-4-000E |
| FODM121A-ND | FODM121A |
| CNY173M-ND | CNY173M |
| 516-3176-5-ND | HCPL-814-000E |
| FODM217B-ND | FODM217B |
| FODM121AR2TR-ND,FODM121AR2CT-ND,FODM121AR2DKR-ND | FODM121AR2 |
| VOL617A-3TTR-ND,VOL617A-3TCT-ND,VOL617A-3TDKR-ND | VOL617A-3T |
| FODM217A-ND | FODM217A |
| TLP383(GR-TPLETR-ND,TLP383(GR-TPLECT-ND,TLP383(GR-TPLEDKR-ND | TLP383(GR-TPL,E |
| TLP383(D4BLLTLETR-ND,TLP383(D4BLLTLECT-ND,TLP383(D4BLLTLEDKR-ND | TLP383(D4BLLTL,E |
| 264-TLP383(D4GB-TL,ETR-ND,264-TLP383(D4GB-TL,ECT-ND,264-TLP383(D4GB-TL,EDKR-ND | TLP383(D4GB-TL,E |
| TLP2301(TPLETR-ND,TLP2301(TPLECT-ND,TLP2301(TPLEDKR-ND | TLP2301(TPL,E |
| TLP620X-ND | TLP620X |
| PS2505-1X-ND | PS2505-1X |
| 4N37-ND | 4N37 |
| 4N28VS-ND | 4N28 |
| 4N26-ND | 4N26 |
| 4N36VS-ND | 4N36 |
| 160-LTV-814-A-ND | LTV-814-A |
| 751-TCMT1108TR-ND,751-TCMT1108CT-ND,751-TCMT1108DKR-ND | TCMT1108 |
| 751-TCMT1102TR-ND,751-TCMT1102CT-ND,751-TCMT1102DKR-ND | TCMT1102 |
| TCMT1104TR-ND,TCMT1104CT-ND,TCMT1104DKR-ND | TCMT1104 |
| 1080-1601-2-ND,1080-1601-1-ND,1080-1601-6-ND | EL357N(C)(TA)-VG |
| FODM2701R2TR-ND,FODM2701R2CT-ND,FODM2701R2DKR-ND | FODM2701R2 |
| FODM217D-ND | FODM217D |
| 488-FODM217CR2TR-ND,488-FODM217CR2CT-ND,488-FODM217CR2DKR-ND | FODM217CR2 |
| FODM217CVOS-ND | FODM217CV |
| HMHA2801-ND | HMHA2801 |
| TCMT1119TR-ND,TCMT1119CT-ND,TCMT1119DKR-ND | TCMT1119 |
| FODM217DR2OSTR-ND,FODM217DR2OSCT-ND,FODM217DR2OSDKR-ND | FODM217DR2 |
| FODM217COS-ND | FODM217C |
| 1080-1504-ND | EL3H7(A)-G |
| 516-2581-2-ND,516-2581-1-ND,516-2581-6-ND | HCPL-181-00DE |
| 559-RV1S2281ACCSP-10YC#KC0TR-ND,559-RV1S2281ACCSP-10YC#KC0CT-ND,559-RV1S2281ACCSP-10YC#KC0DKR-ND | RV1S2281ACCSP-10YC#KC0 |
| FODM124R2VTR-ND,FODM124R2VCT-ND,FODM124R2VDKR-ND | FODM124R2V |
| FODM1007R2TR-ND,FODM1007R2CT-ND,FODM1007R2DKR-ND | FODM1007R2 |
| 516-3761-ND | HCPL-814-300E |
| CNY17G-3-ND | CNY17G-3 |
| FODM1009R2TR-ND,FODM1009R2CT-ND,FODM1009R2DKR-ND | FODM1009R2 |
| 751-1271-5-ND | CNY17F-3 |
| 751-1268-5-ND | CNY17-4 |
| MCT2EM-ND | MCT2EM |
| 751-1265-5-ND | CNY17-1 |
| HMHA281-ND | HMHA281 |
| FODM2705-ND | FODM2705 |
| 488-FODM217DR2VTR-ND,488-FODM217DR2VCT-ND,488-FODM217DR2VDKR-ND | FODM217DR2V |
| 4N35MFS-ND | 4N35M |
| FODM217DVOS-ND | FODM217DV |
| 516-2892-2-ND,516-2892-1-ND,516-2892-6-ND | ACPL-217-50AE |
| 516-4263-2-ND,516-4263-1-ND,516-4263-6-ND | HCPL-181-06BE |
| 516-3135-2-ND,516-3135-1-ND,516-3135-6-ND | HCPL-181-06CE |
| 516-ACPL-217-50CETR-ND,516-ACPL-217-50CECT-ND,516-ACPL-217-50CEDKR-ND | ACPL-217-50CE |
| 4N35SR2MTR-ND,4N35SR2MCT-ND,4N35SR2MDKR-ND | 4N35SR2M |
| 516-4N35-000E-ND | 4N35-000E |
| 516-CNY17-3-000E-ND | CNY17-3-000E |
| H11A1SM-ND | H11A1SM |
| 516-4N25-000E-ND | 4N25-000E |
| 58-H11B2-ND | H11B2 |
| 58-4N29-ND | 4N29 |
| 58-4N33-ND | 4N33 |
| H11B1IS-ND | H11B1 |
| 751-4N25-ND | 4N25 |
| CNY173SM-ND | CNY173SM |
| TIL111M-ND | TIL111M |
| 4N25-X000-ND | 4N25-X000 |
| H11A1MFS-ND | H11A1M |
| 4N25MFS-ND | 4N25M |
| 4N25SR2MTR-ND,4N25SR2MCT-ND,4N25SR2MDKR-ND | 4N25SR2M |
| 4N35SM-ND | 4N35SM |
| 4N25SM-ND | 4N25SM |
| 4N26MFS-ND | 4N26M |
| 4N26SR2MTR-ND,4N26SR2MCT-ND,4N26SR2MDKR-ND | 4N26SR2M |
| MOC217M-ND | MOC217M |
| 4N36M-ND | 4N36M |
| VOL628A-3TTR-ND,VOL628A-3TCT-ND,VOL628A-3TDKR-ND | VOL628A-3T |
| HMHA2801AR2TR-ND,HMHA2801AR2CT-ND,HMHA2801AR2DKR-ND | HMHA2801AR2 |
| 732-141355145000TR-ND,732-141355145000CT-ND,732-141355145000DKR-ND | 1.41355E+11 |
| HMHA2801A-ND | HMHA2801A |
| 516-4264-2-ND,516-4264-1-ND,516-4264-6-ND | HCPL-181-06DE |
| 516-3205-2-ND,516-3205-1-ND,516-3205-6-ND | CNY17-3-500E |
| MOC217R2MTR-ND,MOC217R2MCT-ND,MOC217R2MDKR-ND | MOC217R2M |
| 751-1367-2-ND,751-1367-1-ND,751-1367-6-ND | SFH690ABT |
| 516-ACPL-217-56DETR-ND,516-ACPL-217-56DECT-ND,516-ACPL-217-56DEDKR-ND | ACPL-217-56DE |
| TCLT1000TR-ND,TCLT1000CT-ND,TCLT1000DKR-ND | TCLT1000 |
| TCLT1007TR-ND,TCLT1007CT-ND,TCLT1007DKR-ND | TCLT1007 |
| 1080-EL1018(TA)-VGTR-ND,1080-EL1018(TA)-VGCT-ND,1080-EL1018(TA)-VGDKR-ND | EL1018(TA)-VG |
| HMHAA280-ND | HMHAA280 |
| TCLT1006TR-ND,TCLT1006CT-ND,TCLT1006DKR-ND | TCLT1006 |
| MOC8050M-ND | MOC8050M |
| MOC205M-ND | MOC205M |
| TCLT1002TR-ND,TCLT1002CT-ND,TCLT1002DKR-ND | TCLT1002 |
| LTV-827S-B-ND | LTV-827S-B |
| TCLT1005TR-ND,TCLT1005CT-ND,TCLT1005DKR-ND | TCLT1005 |
| 160-2254-2-ND,160-2254-1-ND,160-2254-6-ND | LTV-214 |
| 516-2481-2-ND,516-2481-1-ND,516-2481-6-ND | HCPL-354-000E |
| 160-1356-5-ND | LTV-8141 |
| 160-2039-5-ND | LTV-825 |
| TCLT1109TR-ND,TCLT1109CT-ND,TCLT1109DKR-ND | TCLT1109 |