RC6432F4021CS Equivalent & Substitute Parts

Part Overview

The RC6432F4021CS is a 4.02 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production. Substitute parts are identified for applications requiring alternative sourcing, inventory availability, or specific certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RC6432F4021CS

Samsung Electro-MechanicsIn Stock: 740RC6432F4021CS Datasheet

Current PartRFQ

RC2512FK-074K02L

YAGEOIn Stock: 9014RC2512FK-074K02L Datasheet

DirectRFQ

CRCW25124K02FKEG

Vishay DaleIn Stock: 23013CRCW25124K02FKEG Datasheet

SimilarRFQ

ERJ-1TNF4021U

Panasonic Electronic ComponentsIn Stock: 1168ERJ-1TNF4021U Datasheet

SimilarRFQ

RMCF2512FT4K02

Stackpole Electronics IncIn Stock: 11020RMCF2512FT4K02 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC6432F4021CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 4.02 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package: 2512 (6432 Metric)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Composition: Thick Film
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS compliance: ROHS3 Compliant

All identified substitute parts meet these electrical and mechanical specifications. Dimensional variations within the 2512 package envelope are acceptable per industry standards. Additional certifications such as automotive AEC-Q200 represent enhanced qualification levels and do not preclude substitution in non-automotive applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

RC2512FK-074K02L (YAGEO) is a direct functional equivalent with active product status. This part maintains all critical electrical and mechanical parameters with no additional certifications, making it suitable for general industrial applications requiring standard thick film resistor performance.

CRCW25124K02FKEG (Vishay Dale) and RMCF2512FT4K02 (Stackpole Electronics Inc) are functionally equivalent parts with active product status and automotive AEC-Q200 certification. These parts are suitable for applications in automotive environments or where enhanced qualification documentation is required. The AEC-Q200 certification does not restrict use in non-automotive applications.

Secondary Substitute (Legacy Status):

ERJ-1TNF4021U (Panasonic Electronic Components) is functionally equivalent but carries a "Not For New Designs" product status. This part is suitable only for replacement or repair of existing assemblies and should not be selected for new product development.

Selection Basis:

For new designs, select from active-status parts: RC2512FK-074K02L, CRCW25124K02FKEG, or RMCF2512FT4K02. For automotive applications or designs requiring AEC-Q200 qualification, select CRCW25124K02FKEG or RMCF2512FT4K02. For legacy system maintenance, ERJ-1TNF4021U remains functionally compatible.

Frequently Asked Questions (FAQ)

Q: Can RC2512FK-074K02L replace RC6432F4021CS in all applications?

A: Yes. RC2512FK-074K02L meets all electrical and mechanical specifications of RC6432F4021CS. Both parts are 4.02 kOhms ±1% 1W thick film resistors in the 2512 package with identical temperature coefficients and operating ranges. Dimensional variations (length 0.250" vs 0.248", width 0.122" vs 0.126") remain within the 2512 package tolerance envelope.

Q: What is the difference between the Samsung part and the Vishay Dale CRCW25124K02FKEG?

A: The primary difference is automotive AEC-Q200 certification on the Vishay Dale part. Both are electrically and mechanically equivalent 4.02 kOhms ±1% 1W thick film resistors in the 2512 package. The AEC-Q200 certification indicates enhanced qualification for automotive applications but does not restrict use in non-automotive circuits.

Q: Why is ERJ-1TNF4021U marked "Not For New Designs"?

A: The Panasonic ERJ-1TNF4021U carries a legacy product status indicating the manufacturer is not recommending this part for new product development. However, it remains functionally equivalent and suitable for replacement in existing assemblies. New designs should select from active-status alternatives.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within the 2512 package specification. Length ranges from 0.248" to 0.252", width from 0.122" to 0.126", and height from 0.026" to 0.028". These variations are within standard 2512 package tolerances and do not affect PCB layout or electrical performance.

Q: Can I use CRCW25124K02FKEG in a non-automotive application?

A: Yes. AEC-Q200 certification indicates automotive qualification but does not restrict use in other applications. CRCW25124K02FKEG is fully compatible with any circuit requiring a 4.02 kOhms ±1% 1W thick film resistor in the 2512 package.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts carry MSL 1 rating, eliminating moisture-related compatibility concerns.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the RC6432F4021CS. This ensures regulatory compatibility across all identified alternatives.