RC5025F124CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F124CS is a 120 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.667W (2/3W) in a 2010 (5025 Metric) package. This component is classified as Active product status and is designed for general-purpose applications requiring moisture-resistant thick film construction. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

RC5025F124CS

Samsung Electro-MechanicsIn Stock: 1151RC5025F124CS Datasheet

Current PartRFQ

RMCF2010FT120K

Stackpole Electronics IncIn Stock: 8686RMCF2010FT120K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC5025F124CS are identified based on strict alignment of the following critical parameters:

Electrical Equivalence Criteria:

• Resistance value: 120 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Compatibility Criteria:

• Package / Case: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Compliance & Environmental Criteria:

• RoHS Status: ROHS3 Compliant (minimum requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (minimum requirement)
• REACH Status: REACH Unaffected (minimum requirement)

Power Rating Consideration: The substitute part RMCF2010FT120K is rated at 0.75W (3/4W), which exceeds the original 0.667W (2/3W) specification. Higher power ratings are acceptable in substitution as they provide equal or greater thermal capability without altering electrical performance at the specified operating point.

Parameter Comparison

Engineering Selection Recommendations

RC5025F124CS (Samsung Electro-Mechanics):

• Primary selection for moisture-resistant applications
• ROHS3 compliant, REACH unaffected
• Active product status with established supply chain
• Suitable for general-purpose thick film resistor applications

RMCF2010FT120K (Stackpole Electronics Inc):

• Direct electrical and mechanical substitute
• Automotive AEC-Q200 rated, providing enhanced reliability qualification
• Higher power rating (0.75W vs 0.667W) offers thermal margin
• ROHS3 compliant, REACH unaffected
• Active product status with high inventory availability (8592 pcs)
• Suitable for applications requiring automotive-grade component qualification

Both parts satisfy the core substitution criteria: identical resistance, tolerance, temperature coefficient, operating temperature range, package dimensions, and compliance certifications. Selection between them depends on application requirements for automotive qualification and thermal margin.

Frequently Asked Questions (FAQ)

Q: Can RMCF2010FT120K replace RC5025F124CS in all applications?

A: Yes, within the specified electrical and mechanical parameters. The RMCF2010FT120K provides equivalent electrical performance (120 kOhms ±1%, ±100ppm/°C, -55°C ~ 155°C) and identical mechanical fit (2010 package, 5.00mm x 2.50mm). The higher power rating (0.75W vs 0.667W) does not create incompatibility; it provides additional thermal capability.

Q: What is the significance of the AEC-Q200 rating on the RMCF2010FT120K?

A: AEC-Q200 is an automotive qualification standard indicating the component has undergone enhanced reliability testing. This certification is relevant only if the application requires automotive-grade components. For non-automotive applications, this certification does not affect substitution eligibility.

Q: Are the physical dimensions compatible for PCB placement?

A: Yes. Both parts use the 2010 (5025 Metric) package with identical length and width (0.197" L x 0.098" W / 5.00mm x 2.50mm). The seated height differs slightly (0.026" vs 0.028" / 0.66mm vs 0.70mm), which is within standard PCB assembly tolerances and does not affect placement compatibility.

Q: Do both parts meet RoHS and REACH compliance?

A: Yes. Both RC5025F124CS and RMCF2010FT120K are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is Moisture Sensitivity Level (MSL) 1, and why is it important?

A: MSL 1 indicates unlimited shelf life without moisture absorption concerns. Both parts carry this rating, meaning they do not require special moisture-controlled storage or handling procedures prior to assembly.

Q: Can these parts be used interchangeably in existing designs without circuit modification?

A: Yes. The electrical parameters (resistance, tolerance, temperature coefficient, operating temperature) are identical, and the mechanical package is the same. No circuit design changes are required for substitution.