RC6432F40R2CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F40R2CS is a 40.2 Ohm ±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. The part is currently in active production status with 999 pieces available in stock. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, higher reliability ratings, or improved component availability from other manufacturers.

Substiute Parts

RC6432F40R2CS

Samsung Electro-MechanicsIn Stock: 1065RC6432F40R2CS Datasheet

Current PartRFQ

RC2512FK-0740R2L

YAGEOIn Stock: 11417RC2512FK-0740R2L Datasheet

DirectRFQ

AC2512FK-0740R2L

YAGEOIn Stock: 8998AC2512FK-0740R2L Datasheet

UpgradeRFQ

CRCW251240R2FKEG

Vishay DaleIn Stock: 24292CRCW251240R2FKEG Datasheet

SimilarRFQ

ERJ-1TNF40R2U

Panasonic Electronic ComponentsIn Stock: 15948ERJ-1TNF40R2U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F40R2CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Resistance value: 40.2 Ohms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match Exactly):

• Package / Case: 2512 (6432 Metric)
• Number of terminations: 2

Compliance Parameters (Must Match or Exceed):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Construction Parameters (Must Match):

• Composition: Thick Film
• Features: Moisture Resistant

All substitute parts listed below satisfy these criteria. Additional features such as automotive AEC-Q200 qualification represent enhancements that do not disqualify a part from substitution but may indicate suitability for more demanding applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status, Standard Industrial Applications):

RC2512FK-0740R2L (YAGEO) and AC2512FK-0740R2L (YAGEO) are direct electrical and mechanical equivalents to the RC6432F40R2CS. Both maintain identical electrical specifications and package dimensions within tolerance. RC2512FK-0740R2L is suitable for standard industrial applications. AC2512FK-0740R2L includes AEC-Q200 automotive qualification and is appropriate for automotive and high-reliability applications requiring enhanced qualification documentation.

Secondary Substitutes (Active Status, Automotive Applications):

CRCW251240R2FKEG (Vishay Dale) is electrically and mechanically equivalent with AEC-Q200 automotive qualification. This part is suitable for automotive and industrial applications requiring automotive-grade component certification. Inventory availability is highest among all listed substitutes at 24,225 pieces.

Legacy Substitute (Not For New Designs):

ERJ-1TNF40R2U (Panasonic Electronic Components) meets all electrical and mechanical equivalence criteria and carries AEC-Q200 qualification. However, this part is designated "Not For New Designs" by the manufacturer. Use of this part is limited to legacy system support, repair, and maintenance applications only. New design implementations should not incorporate this part number.

Frequently Asked Questions (FAQ)

Q: Can RC2512FK-0740R2L replace RC6432F40R2CS in any application?

A: Yes. RC2512FK-0740R2L is electrically and mechanically equivalent. Both parts share identical resistance (40.2 Ohms), tolerance (±1%), power rating (1W), package (2512), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and compliance status (ROHS3). Dimensional variations are within acceptable tolerances for PCB assembly.

Q: What is the difference between RC2512FK-0740R2L and AC2512FK-0740R2L?

A: Both parts are electrically and mechanically identical. The primary difference is that AC2512FK-0740R2L includes AEC-Q200 automotive qualification, making it suitable for automotive applications requiring documented automotive-grade components. RC2512FK-0740R2L is intended for standard industrial applications without automotive qualification requirements.

Q: Is CRCW251240R2FKEG suitable for automotive applications?

A: Yes. CRCW251240R2FKEG carries AEC-Q200 automotive qualification and meets all electrical and mechanical specifications. Dimensional variations (length 6.30mm vs. 6.35mm, height 0.70mm vs. 0.66mm) are within standard PCB assembly tolerances and do not affect functionality.

Q: Why is ERJ-1TNF40R2U marked "Not For New Designs"?

A: ERJ-1TNF40R2U is designated "Not For New Designs" by Panasonic Electronic Components. This designation indicates the manufacturer is phasing out this part number. New product designs should not incorporate this part. Use is limited to legacy system support and maintenance applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (RC2512FK-0740R2L, AC2512FK-0740R2L, CRCW251240R2FKEG, and ERJ-1TNF40R2U) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original RC6432F40R2CS specification.

Q: What are the dimensional tolerances between substitute parts?

A: Length variations range from 6.30mm to 6.40mm (nominal 6.35mm). Width variations range from 3.10mm to 3.20mm (nominal 3.15mm). Height variations range from 0.65mm to 0.70mm (nominal 0.66mm). These variations are within standard PCB assembly and reflow process tolerances and do not affect electrical performance or mechanical fit in standard 2512 footprints.

Q: Which substitute part has the highest inventory availability?

A: CRCW251240R2FKEG (Vishay Dale) has the highest inventory at 24,225 pieces, followed by RC2512FK-0740R2L (YAGEO) at 11,351 pieces and ERJ-1TNF40R2U (Panasonic) at 15,866 pieces.