RC5025F1243CS Equivalent & Substitute Parts

Part Overview

The RC5025F1243CS is a 124 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format. This component is rated for 0.667W (2/3W) continuous power dissipation and operates across the temperature range of -55°C to 155°C. The part is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and resistance value, allowing for direct board-level replacement in applications where component availability or supply chain requirements necessitate alternative sourcing.

Substiute Parts

RC5025F1243CS

Samsung Electro-MechanicsIn Stock: 761RC5025F1243CS Datasheet

Current PartRFQ

RMCF2010FT124K

Stackpole Electronics IncIn Stock: 9098RMCF2010FT124K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F1243CS is determined by strict adherence to the following critical parameters:

Mandatory Matching Criteria:

• Resistance value: 124 kOhms
• Tolerance: ±1%
• Package format: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C minimum
• RoHS3 compliance status
• Moisture sensitivity level: 1 (Unlimited)

Allowable Variation:

• Power rating may exceed the original specification (0.667W minimum required)
• Packaging format (bulk vs. tape & reel) does not affect electrical substitution eligibility
• Additional certifications (such as AEC-Q200 automotive qualification) do not preclude substitution

The RMCF2010FT124K from Stackpole Electronics Inc qualifies as a direct substitute based on matching all mandatory criteria while providing enhanced power rating (0.75W vs. 0.667W) and automotive-grade qualification.

Parameter Comparison

Engineering Selection Recommendations

The RMCF2010FT124K from Stackpole Electronics Inc is a qualified substitute for the RC5025F1243CS. Both components maintain Active product status and full compliance with RoHS3 and REACH regulations. The substitute part provides equivalent electrical performance with identical resistance value, tolerance, temperature coefficient, and operating temperature range. The enhanced power rating (0.75W vs. 0.667W) of the substitute component presents no compatibility issues and may provide additional thermal margin in power-dissipation-sensitive applications.

The RMCF2010FT124K includes AEC-Q200 automotive qualification, which represents an additional certification layer not present in the original Samsung component. This certification does not restrict substitution in non-automotive applications and may be beneficial for designs requiring automotive-grade component traceability.

Both components are packaged in identical 2010 (5025 Metric) footprints with negligible height variation (0.66mm vs. 0.70mm maximum seated height), ensuring direct board-level compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the RMCF2010FT124K replace the RC5025F1243CS in existing designs without circuit modification?

A: Yes. Both components share identical electrical specifications (124 kOhms ±1%, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range) and mechanical footprint (2010 package). The substitute's higher power rating (0.75W vs. 0.667W) does not require design changes and provides additional thermal capability.

Q: Does the AEC-Q200 automotive certification on the RMCF2010FT124K affect its use in non-automotive applications?

A: No. AEC-Q200 certification represents an additional qualification standard and does not restrict component use in non-automotive circuits. The certification indicates enhanced quality and reliability screening but does not alter electrical or mechanical performance characteristics.

Q: Are there packaging format differences between these two parts?

A: The RC5025F1243CS is supplied in standard packaging format, while the RMCF2010FT124K is supplied in Tape & Reel (TR) format. Both formats contain electrically and mechanically identical components; packaging format differences relate only to order quantity and handling logistics, not component performance.

Q: What is the maximum height difference between these components?

A: The RC5025F1243CS has a maximum seated height of 0.026" (0.66mm), while the RMCF2010FT124K has a maximum seated height of 0.028" (0.70mm). This 0.002" (0.04mm) difference is within standard PCB assembly tolerances and does not affect board-level compatibility or clearance requirements.

Q: Are both components compliant with current environmental regulations?

A: Yes. Both the RC5025F1243CS and RMCF2010FT124K are RoHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions for electronic components.

Q: Can these components be used interchangeably in high-precision applications requiring ±1% tolerance?

A: Yes. Both components are specified with ±1% tolerance and ±100ppm/°C temperature coefficient, providing equivalent accuracy performance across the full operating temperature range.