This Product Selection Guide contains information to help select products in the Chip Resistor-Surface Mount category on DigiKey.com
Resistors provide opposition to current flow, in a manner that is proportional to the electric potential (voltage) imposed across them, and which is ideally unaffected by signal frequency or changes in temperature. Resistors described as surface mount chip types are designed to be affixed to the surface of a printed circuit board and incorporate a single resistor per device package.
SelectionCharacteristics
Resistance: Characterizes the nominal resistance of a current path through a device.
Tolerance: Characterizes the extent of permitted variability of overall device resistance among samples of a given part number, resulting from variations in manufacturing.
Power(Watts): The maximum continuous output power a device is designed to produce.
Composition: Indicates the basic material type/construction method used to construct a product’s resistive element.
Features: These are different capabilities of the device such as anti-corrosive, current sense, or moisture resistant.
Temperature Coefficient: The temperature coefficient of resistance (TCR) is a constant that represents the resistance change per degree Celsius of temperature change over a specific temperature range; it’s expressed as ppm/°C (parts per million per degree centigrade).
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/or other system components.
Package/Case: The protective case on an electronic component which allows for easy handling, installation, and protects the device. This is what we determined is the closest industry standard to the supplier device package. Typically, it is best to use the actual dimensions from the datasheet rather than to go by 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.
Ratings: Minimum performance standards of the device typically set by a third party.
Size/Dimensions: The physical dimensions of the device. Typically length, width, height.
Height - Seated(Max): How far the device will extend above the surface it is attached to.
Number of Terminations: Number of electrical contacts on the resistor.
Failure Rate: A factor used for reliability calculations that accounts for initial production quality, per MIL-HDBK-217. Typically N/A for parts not manufactured to military specification.
ProductExamples
| MFR PART # | RL0510S-5R1-F |
|---|---|
| DIGI-KEY PART # | 408-1454-2-ND - Tape & Reel (TR) |
| MANUFACTURER | Susumu |
| DESCRIPTION | 5.1 Ohms ±1% 0.167W, 1/6W Chip Resistor 0402 (1005 Metric) Current Sense Thin Film |
| DATASHEET | Click Here |
| MFR PART # | ERJ-XGN0R00Y |
|---|---|
| DIGI-KEY PART # | P0.0AWTR-ND - Tape & Reel (TR) |
| MANUFACTURER | Panasonic Electronic Components |
| DESCRIPTION | 0 Ohms Jumper 0.03W, 1/32W Chip Resistor 01005 (0402 Metric) - Thick Film |
| DATASHEET | Click Here |
| MFR PART # | RC0S2CA47R0JE |
|---|---|
| DIGI-KEY PART # | 2485-RC0S2CA47R0JE-ND |
| MANUFACTURER | Ohmite |
| DESCRIPTION | RES SMD 47 OHM 5% 1/4W J LEAD |
| DATASHEET | Click Here |
| MFR PART # | RW3R0DBR100JET |
|---|---|
| DIGI-KEY PART # | RW3R0DBR100JETR-ND - Tape & Reel (TR) |
| MANUFACTURER | Ohmite |
| DESCRIPTION | 100 mOhms ±5% 3W Chip Resistor 6327 J-Lead Current Sense Wirewound |
| DATASHEET | Click Here |
| MFR PART # | MMP200FRE36K |
|---|---|
| DIGI-KEY PART # | YAG5801TR-ND - Tape & Reel (TR) |
| MANUFACTURER | YAGEO |
| DESCRIPTION | 36 kOhms ±1% 2W Chip Resistor MELF, 0309 - Metal Film |
| DATASHEET | Click Here |
| MFR PART # | PFS35-20RF1 |
|---|---|
| DIGI-KEY PART # | 696-1282-2-ND - Tape & Reel (TR) |
| MANUFACTURER | Riedon |
| DESCRIPTION | 20 Ohms ±1% 35W Chip Resistor Non-Standard D-PAK Current Sense, Pulse Withstanding Thin Film |
| DATASHEET | Click Here |
SchematicSymbol
Schematic symbol courtesy of Scheme-it. Please see their website for more information and symbols.
MediaLinks
Videos
SMD Resistors Product Board Overview
Blogs
Resistor Power Rating Derating and Temperature Coefficient
TechForum
Resistor Composition Differences