RC6432F2742CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F2742CS is a 27.4 kOhms ±1% 1W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This component is classified as Active and features moisture-resistant construction with ROHS3 compliance. The part is suitable for general-purpose applications requiring precision resistive elements with moderate power dissipation in compact surface-mount form factors. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure functional interchangeability in circuit designs.

Substiute Parts

RC6432F2742CS

Samsung Electro-MechanicsIn Stock: 1024RC6432F2742CS Datasheet

Current PartRFQ

CRCW251227K4FKEG

Vishay DaleIn Stock: 4824CRCW251227K4FKEG Datasheet

SimilarRFQ

ERJ-1TNF2742U

Panasonic Electronic ComponentsIn Stock: 8926ERJ-1TNF2742U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F2742CS is determined by strict equivalence across the following parameters:

Mandatory Matching Criteria:

• Resistance value: 27.4 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100 ppm/°C
• Operating temperature range: -55°C to 155°C
• Moisture sensitivity level: 1 (Unlimited)
• RoHS compliance: ROHS3 Compliant

All identified substitute parts meet these criteria. Dimensional variations within supplier tolerances and differences in product status or certifications do not affect functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

CRCW251227K4FKEG (Vishay Dale) is the primary substitute for new designs. This part maintains Active product status and carries AEC-Q200 automotive qualification. Dimensional specifications are equivalent to the RC6432F2742CS within standard manufacturing tolerances. All electrical and environmental parameters are identical.

ERJ-1TNF2742U (Panasonic Electronic Components) is functionally equivalent but carries a "Not For New Designs" product status designation. This part is suitable for replacement or repair applications where existing inventory exists. AEC-Q200 automotive qualification is present. Dimensional variation in length (6.40mm versus 6.30mm) falls within standard PCB layout tolerances for 2512 package footprints.

For new circuit designs, CRCW251227K4FKEG is the recommended selection based on Active product status and continued manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can CRCW251227K4FKEG be used as a direct replacement for RC6432F2742CS?

A: Yes. Both parts share identical electrical specifications (27.4 kOhms, ±1%, 1W), composition (thick film), temperature characteristics (±100 ppm/°C, -55°C to 155°C), and package designation (2512/6432 Metric). Dimensional differences are within standard PCB footprint tolerances. No circuit redesign is required.

Q: Why is ERJ-1TNF2742U marked "Not For New Designs"?

A: This designation indicates that Panasonic has discontinued active development and promotion of this part number. While the part remains functionally equivalent and available in inventory, manufacturers recommend using alternative sources for new product development. The part remains suitable for maintenance, repair, and existing production runs.

Q: Are there dimensional compatibility concerns with the 2512 package?

A: All three parts conform to the 2512 (6432 Metric) package standard. Dimensional variations (length 6.30–6.40mm, width 3.15–3.20mm, height 0.66–0.70mm) are within IEC and EIA standard tolerances for this package class and do not affect PCB footprint compatibility or soldering performance.

Q: Do all substitute parts carry the same environmental certifications?

A: All three parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. CRCW251227K4FKEG and ERJ-1TNF2742U carry AEC-Q200 automotive qualification; RC6432F2742CS carries moisture-resistant construction. All parts have MSL 1 (Unlimited) rating.

Q: What is the difference between "Moisture Resistant" and "AEC-Q200" designations?

A: Moisture-resistant construction refers to the physical design of the resistor element to resist moisture ingress. AEC-Q200 is an automotive industry qualification standard that includes moisture resistance testing as one component. Both designations indicate suitability for demanding environmental conditions; AEC-Q200 represents a broader qualification framework specific to automotive applications.