RSMF5JK1K20

Overview

The RSMF5JK1K20 is a metal oxide film axial through-hole resistor manufactured by Stackpole Electronics Inc. It features a resistance value of 1.2 kOhms with a tolerance of ±5%. The component has a power rating of 5W and operates within a temperature range of -55°C to +235°C. Its physical dimensions are 6.00mm in diameter and 17.50mm in length. The device exhibits a temperature coefficient of ±200ppm/°C and meets RoHS3 standards.

Feature Summary

• Constructed from metal oxide film material for durability
• Designed with flameproof and safety characteristics
• Capable of operating at high temperatures up to 235°C

Applications

• High-power general purpose circuits
• Industrial equipment requiring robust resistive elements
• Power supply units needing high wattage dissipation

Procurement Notes

Verify the specific suffix 'J' indicates ±5% tolerance and 'K' denotes the 1.2kOhm value against official datasheets. Confirm the package type matches axial lead requirements for your PCB layout. Ensure the 5W power rating aligns with thermal management constraints in the final assembly design.

Selection Notes

Select this component when high power handling and extended temperature stability are required. The metal oxide construction offers superior performance compared to carbon composition types in harsh environments. Verify that the axial form factor fits the available board space and mounting orientation constraints.

Part Context

This part belongs to the RSMF series of metal oxide film resistors from Stackpole Electronics. The series is characterized by high reliability and flameproof construction. It serves as a robust alternative to standard wirewound or carbon film resistors in applications demanding higher surge withstand capabilities and stable performance over wide temperature ranges.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.