This Product Selection Guide contains information to help select products in the Current Regulation - Diodes, Transistors category on DigiKey.com
Current regulating diodes (also referred to a constand-current diode, current-limiting diode (CLD), or current-regulating diode (CRD)) maintain a constant current based on their specified value regardless of voltage fluctuations. Current regulating transistors work by regulating its collector and emitter voltage to provide a constant output voltage.
SelectionCharacteristics
Voltage - Anode - Cathode (Vak)(Max): Typically this represents the maximum voltage rating to which a device will meet its given specifications. Exceeding this voltage rating may damage the device and other system components.
Regulator Current (Max): The maximum current value the device will conduct under normal operation.
Voltage - Limiting (Max): The minimum voltage that must be imposed across the device in order to achieve a current flow at or near the rated value.
Power - Max: Typically this represents the maximum power rating to which a device will meet its given specifications. Exceeding this power rating may damage the device and other system components.
Applications: Application is the type of equipment or environment the device is designed for use in.
Operating Temperature: Recommended operating temperature, typically given in a range or as a maximum. Exceeding these temperatures may affect performance or damage the device and other system components.
Mounting Type: Indicates how the device is attached.
Package / Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the supplier device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
Supplier Device Package: This is what the manufacturer calls the package of this device. They are manufacturer specific. It is typically best to use the actual dimensions from the datasheets rather than to go by this terminology when designing your circuit.
ProductExamples
| MFR PART # | CMJ1000 TR PBFREE |
|---|---|
| DIGI-KEY PART # | 1514-CMJ1000TRPBFREETR-ND - Tape & Reel (TR) |
| MANUFACTURER | Central Semiconductor Corp |
| DESCRIPTION | DIODE CUR REG 100V 1.32MA 500MW |
| DATASHEET | Click Here |
| MFR PART # | J511 TO-92 2L ROHS |
|---|---|
| DIGI-KEY PART # | 4004-J511TO-922LROHS-ND |
| MANUFACTURER | Linear Integrated Systems, Inc. |
| DESCRIPTION | DIODE CUR REG 50V 5.6MA 350MW |
| DATASHEET | Click Here |
| MFR PART # | 1N5306 |
|---|---|
| DIGI-KEY PART # | 150-1N5306-ND |
| MANUFACTURER | Microchip Technology |
| DESCRIPTION | DIODE CUR REG 100V 2.42MA 500MW |
| DATASHEET | Click Here |
| MFR PART # | CDLL5312 |
|---|---|
| DIGI-KEY PART # | CDLL5312-ND |
| MANUFACTURER | Microchip Technology |
| DESCRIPTION | DIODE CUR REG 100V 4.29MA 500MW |
| DATASHEET | Click Here |
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