RC6432F6491CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F6491CS is a 6.49 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 maintains ROHS3 compliance with MSL 1 rating. The part is currently active in production with 825 pieces available in new original stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component's functional requirements.

Substiute Parts

RC6432F6491CS

Samsung Electro-MechanicsIn Stock: 919RC6432F6491CS Datasheet

Current PartRFQ

CRCW25126K49FKEG

Vishay DaleIn Stock: 12262CRCW25126K49FKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F6491CS is determined by strict alignment of the following parameters:

Electrical Parameters (Critical):

• Resistance value: 6.49 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Critical):

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

Compliance Parameters (Required):

• RoHS3 compliance
• MSL 1 rating
• REACH unaffected status

The CRCW25126K49FKEG manufactured by Vishay Dale meets all critical electrical, mechanical, and compliance requirements. This part maintains identical resistance, tolerance, power rating, temperature coefficient, and operating temperature specifications. The 2512 package dimensions are functionally equivalent with negligible dimensional variance (length 6.30mm, width 3.15mm vs. 3.20mm). Both components are ROHS3 compliant with MSL 1 rating and REACH unaffected status.

Parameter Comparison

Engineering Selection Recommendations

The CRCW25126K49FKEG is a direct functional equivalent to the RC6432F6491CS. Both components are active production parts with ROHS3 compliance and MSL 1 rating. The Vishay Dale substitute carries AEC-Q200 automotive qualification, which provides additional quality assurance beyond the base specification. Dimensional compatibility is confirmed across all critical measurements. Selection between these parts depends on supply availability, lead time requirements, and application-specific quality certifications. The substitute part is available in higher inventory volume (12,214 pieces) compared to the original part (825 pieces).

Frequently Asked Questions (FAQ)

Q: Can the CRCW25126K49FKEG replace the RC6432F6491CS in all applications?

A: Yes, provided the application does not require Samsung-specific certifications or supply chain documentation. Both parts meet identical electrical specifications, operate across the same temperature range, and maintain equivalent compliance status.

Q: Are there dimensional differences between these parts?

A: Dimensional variance is minimal and functionally compatible. The width differs by 0.05mm (3.20mm vs. 3.15mm) and height by 0.04mm (0.66mm vs. 0.70mm). These tolerances fall within standard PCB layout and assembly specifications for 2512 package components.

Q: What is the significance of AEC-Q200 qualification on the substitute part?

A: AEC-Q200 is an automotive industry standard qualification. The Vishay Dale part carries this certification, indicating additional reliability testing and quality control. This does not affect substitution eligibility but provides enhanced assurance for applications requiring automotive-grade components.

Q: Do both parts have identical moisture sensitivity ratings?

A: Yes. Both the RC6432F6491CS and CRCW25126K49FKEG carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Are there packaging format differences?

A: The original part is specified with "-" packaging notation. The substitute part is available in Cut Tape (CT) and Digi-Reel® formats, with Tape & Reel (TR) as the standard supplier package. Packaging format does not affect electrical or mechanical compatibility.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8533.21.0030. Compliance status is identical.