RC6432F1240CS Equivalent & Substitute Parts

Part Overview

The RC6432F1240CS is a 124 Ohm ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film resistor features moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Substiute Parts

RC6432F1240CS

Samsung Electro-MechanicsIn Stock: 891RC6432F1240CS Datasheet

Current PartRFQ

CRCW2512124RFKEG

Vishay DaleIn Stock: 4884CRCW2512124RFKEG Datasheet

SimilarRFQ

ERJ-1TNF1240U

Panasonic Electronic ComponentsIn Stock: 10469ERJ-1TNF1240U Datasheet

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RMCF2512FT124R

Stackpole Electronics IncIn Stock: 4934RMCF2512FT124R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F1240CS is determined by strict equivalence across the following parameters:

Electrical Specifications:

• Resistance value: 124 Ohms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Specifications:

• Package format: 2512 (6432 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance & Certification:

• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)
• REACH unaffected status

All three substitute parts listed meet these criteria. Differences in packaging format (Tape & Reel versus bulk), manufacturer-specific features (Automotive AEC-Q200 certification), and product status variations are noted but do not disqualify substitution based on core electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

CRCW2512124RFKEG (Vishay Dale): This substitute maintains Active product status with full ROHS3 compliance. The part includes Automotive AEC-Q200 certification, providing enhanced reliability qualification for automotive applications. Dimensional tolerance on width (3.15mm versus 3.20mm) remains within standard PCB pad specifications for 2512 packages. This option is suitable for new designs requiring automotive-grade components.

ERJ-1TNF1240U (Panasonic Electronic Components): This substitute carries Automotive AEC-Q200 certification and full ROHS3 compliance. However, the product status is listed as "Not For New Designs," indicating this part is in mature or end-of-life phase. This option is appropriate for legacy system maintenance or replacement applications only, not for new circuit development.

RMCF2512FT124R (Stackpole Electronics Inc): This substitute maintains Active product status with ROHS3 compliance and Automotive AEC-Q200 certification. Dimensional specifications align precisely with the original RC6432F1240CS. This option is suitable for new designs and provides equivalent performance with automotive-grade qualification.

For new design implementations, CRCW2512124RFKEG or RMCF2512FT124R are preferred. For legacy system support, ERJ-1TNF1240U remains available despite its "Not For New Designs" status.

Frequently Asked Questions (FAQ)

Q: Can CRCW2512124RFKEG replace RC6432F1240CS in existing assemblies?

A: Yes. Both parts share identical electrical specifications (124 Ohms ±1%, 1W, ±100ppm/°C), operate across the same temperature range (-55°C to 155°C), and use the 2512 (6432 Metric) package. Dimensional variations (width 3.15mm versus 3.20mm, height 0.70mm versus 0.66mm) fall within standard PCB pad tolerances for this package class. The substitute is ROHS3 compliant with MSL 1 rating.

Q: What is the difference between the three substitute parts?

A: All three substitutes meet core electrical and mechanical requirements. CRCW2512124RFKEG and RMCF2512FT124R maintain Active product status, while ERJ-1TNF1240U is marked "Not For New Designs." All three include Automotive AEC-Q200 certification. Dimensional differences are minor: ERJ-1TNF1240U length is 6.40mm versus 6.30mm for the others; height varies between 0.66mm (original) and 0.70mm (substitutes).

Q: Is the Automotive AEC-Q200 certification on substitute parts a requirement?

A: No. The original RC6432F1240CS does not specify AEC-Q200 certification. The substitute parts include this certification as an additional feature. If your application does not require automotive qualification, this difference does not affect substitution eligibility.

Q: Can ERJ-1TNF1240U be used in new product designs?

A: The product status "Not For New Designs" indicates this part is in mature phase. While electrically and mechanically equivalent, Panasonic recommends against using this part in new circuit development. CRCW2512124RFKEG or RMCF2512FT124R are preferred for new designs.

Q: Are there packaging format differences between these parts?

A: The original RC6432F1240CS packaging format is not specified in the provided data. All three substitutes are available in Tape & Reel (TR) format. If bulk or alternative packaging is required, contact the respective manufacturers directly.

Q: Do dimensional variations affect PCB layout?

A: Dimensional variations are minimal and within standard 2512 package tolerances. The maximum height difference is 0.04mm (0.70mm versus 0.66mm). Standard PCB pad designs for 2512 packages accommodate these variations. No layout modification is required.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC6432F1240CS, CRCW2512124RFKEG, ERJ-1TNF1240U, and RMCF2512FT124R are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH unaffected status.