This Product Selection Guide contains information to help select products in the Chassis Mount Resistors category on DigiKey.com
Chassis mount resistors are passive components that oppose the flow of current and are used to adjust signal levels, divide voltages, bias active elements, or terminate transmission lines among other uses. These resistors are typically larger and may dissipate up to 2500 watts of heat energy. They are mounted using housing flanges, screws, braces, or brackets.
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.
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.
Features: These are different capabilities of the device such as current sense, non-inductive or flameproof.
Coating, Housing Type: Identifies the material composition of a device’s housing and/or thermal interface surfaces.
Mounting Feature: How the resistor is mounted such as a bracket or flange.
Size/Dimension: The physical dimensions of the device. Typically diameter and length or length and width.
Height - Seated (Max): How far the device will extend above the surface it is attached to.
ProductExamples
| MFR PART # | SHT1-500C075DE |
|---|---|
| DIGI-KEY PART # | SHT1-500C075DE-ND |
| MANUFACTURER | Ohmite |
| DESCRIPTION | 150 µOhms ±0.5% 37.5W Metal Element Chassis Mount Resistor |
| DATASHEET | Click Here |
| MFR PART # | FNR2E-0R01F1 |
|---|---|
| DIGI-KEY PART # | FNR2E-0R01F1-ND |
| MANUFACTURER | Riedon |
| DESCRIPTION | 10 mOhms ±1% 80W Metal Foil Chassis Mount Resistor |
| DATASHEET | Click Here |
| MFR PART # | KAL50FB10R0 |
|---|---|
| DIGI-KEY PART # | KAL50FB10R0-ND |
| MANUFACTURER | Stackpole Electronics Inc |
| DESCRIPTION | 10 Ohms ±1% 50W Wirewound Chassis Mount Resistor |
| DATASHEET | Click Here |
| MFR PART # | SQBW2047RJ |
|---|---|
| DIGI-KEY PART # | A131151-ND |
| MANUFACTURER | TE Connectivity Passive Product |
| DESCRIPTION | 47 Ohms ±5% 20W Wirewound Chassis Mount Resistor |
| DATASHEET | Click Here |
| MFR PART # | FVT05006E25R00JE |
|---|---|
| DIGI-KEY PART # | FVT50-25-ND |
| MANUFACTURER | Vishay Huntington Electric Inc. |
| DESCRIPTION | 25 Ohms ±5% 50W Wirewound Chassis Mount Resistor |
| DATASHEET | Click Here |
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