RC6432F27R4CS Equivalent & Substitute Parts

Part Overview

The RC6432F27R4CS is a 27.4 Ohm ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film, moisture-resistant component operates across a temperature range of -55°C to 155°C and maintains ROHS3 compliance with unlimited moisture sensitivity rating (MSL 1). The part is currently in active production status with 817 units available in inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component's performance requirements.

Substiute Parts

RC6432F27R4CS

Samsung Electro-MechanicsIn Stock: 917RC6432F27R4CS Datasheet

Current PartRFQ

CRCW251227R4FKEG

Vishay DaleIn Stock: 6306CRCW251227R4FKEG Datasheet

SimilarRFQ

ERJ-1TNF27R4U

Panasonic Electronic ComponentsIn Stock: 4209ERJ-1TNF27R4U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F27R4CS is determined by strict equivalence across the following parameters:

Electrical Specifications:

• Resistance value: 27.4 Ohms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Specifications:

• Package type: 2512 (6432 Metric)
• Number of terminations: 2
• Physical dimensions compatible with 2512 footprint

Compliance & Certification:

• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)
• REACH unaffected status
• ECCN: EAR99

All identified substitute parts meet these criteria. Differences in product status, packaging format (Tape & Reel vs. bulk), and optional automotive certifications (AEC-Q200) do not disqualify substitution but are noted for application-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

CRCW251227R4FKEG (Vishay Dale) is the primary substitute for the RC6432F27R4CS. This part maintains active production status, carries AEC-Q200 automotive qualification, and is available in higher inventory (6,233 units). All electrical and mechanical parameters align with the original specification. The Tape & Reel packaging format is standard for high-volume applications.

ERJ-1TNF27R4U (Panasonic Electronic Components) is a secondary substitute. While electrically and mechanically equivalent, this part carries a "Not For New Designs" product status designation. It is suitable for replacement and maintenance applications where existing designs are already in production. AEC-Q200 automotive certification is included. Physical dimensions show minor variation in length (0.252" vs. 0.248") and seated height (0.028" vs. 0.026"), which remain within 2512 package tolerance specifications.

For new design implementations, CRCW251227R4FKEG is the recommended selection due to active production status and automotive-grade qualification. For existing production lines or maintenance scenarios, ERJ-1TNF27R4U provides functional equivalence with adequate inventory availability (4,126 units).

Frequently Asked Questions (FAQ)

Q: Can CRCW251227R4FKEG directly replace RC6432F27R4CS in existing PCB layouts?

A: Yes. Both components use the 2512 (6432 Metric) package with identical footprints. Physical dimensions are within standard package tolerances (length 6.30mm vs. 6.30mm, width 3.20mm vs. 3.15mm). No PCB redesign is required.

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

A: AEC-Q200 is an automotive-grade qualification standard. The RC6432F27R4CS does not specify this rating, while CRCW251227R4FKEG and ERJ-1TNF27R4U do. AEC-Q200 certification indicates enhanced reliability testing and is required for automotive applications. Non-automotive applications are unaffected by this difference.

Q: Why is ERJ-1TNF27R4U marked "Not For New Designs"?

A: This designation indicates the part is in mature or declining production phase. It remains available for replacement and maintenance of existing products but is not recommended for new product development. CRCW251227R4FKEG, with active status, is preferred for new designs.

Q: Are there dimensional differences that affect board assembly?

A: Minor dimensional variations exist within 2512 package tolerance. RC6432F27R4CS seated height is 0.026" (0.66mm), while both substitutes are 0.028" (0.70mm). This 0.002" difference is within standard PCB assembly clearance specifications and does not affect functionality or placement.

Q: Do all three parts share identical electrical performance?

A: Yes. Resistance (27.4 Ohms), tolerance (±1%), power rating (1W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C) are identical across RC6432F27R4CS, CRCW251227R4FKEG, and ERJ-1TNF27R4U.

Q: What is the difference between bulk and Tape & Reel packaging?

A: RC6432F27R4CS is supplied in bulk format (packaging not specified). CRCW251227R4FKEG and ERJ-1TNF27R4U are supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. Tape & Reel packaging is compatible with pick-and-place equipment and is the industry standard for high-volume production.

Q: Are all parts RoHS3 compliant?

A: Yes. RC6432F27R4CS, CRCW251227R4FKEG, and ERJ-1TNF27R4U all carry ROHS3 compliance certification and are REACH unaffected, meeting current environmental and regulatory requirements.