RC6432F3921CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F3921CS is a 3.92 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film resistor features moisture resistance and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 793 units in current inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate specific manufacturer certifications or packaging configurations.

Substiute Parts

RC6432F3921CS

Samsung Electro-MechanicsIn Stock: 823RC6432F3921CS Datasheet

Current PartRFQ

CRCW25123K92FKEG

Vishay DaleIn Stock: 2499CRCW25123K92FKEG Datasheet

SimilarRFQ

RMCF2512FT3K92

Stackpole Electronics IncIn Stock: 856RMCF2512FT3K92 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F3921CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 3.92 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package type: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS compliance: ROHS3 Compliant

All identified substitute parts meet these mandatory parameters. Differences in packaging format (Tape & Reel versus bulk) and manufacturer-specific certifications (such as AEC-Q200 automotive qualification) do not affect functional equivalence but may influence selection based on application requirements and supply chain considerations.

Parameter Comparison

Engineering Selection Recommendations

RC6432F3921CS (Samsung Electro-Mechanics): Select this part when moisture resistance is the primary design requirement and bulk packaging is acceptable for manufacturing processes. The part carries Active product status with established inventory availability.

CRCW25123K92FKEG (Vishay Dale): This substitute is qualified to AEC-Q200 automotive standards and is supplied in Tape & Reel format, making it suitable for automated assembly operations and applications requiring automotive-grade component certification. The dimensional width is 0.124" (3.15mm) compared to 0.126" (3.20mm) for the primary part, with seated height of 0.028" (0.70mm).

RMCF2512FT3K92 (Stackpole Electronics Inc): This substitute is also qualified to AEC-Q200 automotive standards and maintains dimensional compatibility with the primary part at 0.248" L x 0.126" W (6.30mm x 3.20mm). Tape & Reel packaging supports high-volume automated assembly. Inventory availability is comparable to the primary part at 774 units.

All three parts satisfy ROHS3 compliance and REACH unaffected status. Selection between substitutes should be based on packaging requirements, supply chain preferences, and whether automotive AEC-Q200 qualification is mandated by application specifications.

Frequently Asked Questions (FAQ)

Q: Can CRCW25123K92FKEG be used as a direct replacement for RC6432F3921CS?

A: Yes. Both parts share identical electrical specifications: 3.92 kOhms ±1%, 1W power rating, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. The primary difference is packaging format (Tape & Reel versus bulk) and AEC-Q200 automotive certification on the Vishay part. Dimensional width differs by 0.002" (0.05mm), which is within standard PCB pad tolerance for 2512 packages.

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

A: AEC-Q200 is an automotive industry standard for passive components. The Vishay CRCW25123K92FKEG and Stackpole RMCF2512FT3K92 carry this certification, indicating compliance with automotive reliability and quality requirements. This certification is not present on the Samsung RC6432F3921CS. Use AEC-Q200 qualified parts only when automotive specifications explicitly require this certification.

Q: Are there dimensional compatibility concerns when substituting these parts?

A: Dimensional differences are minimal. The RC6432F3921CS and RMCF2512FT3K92 are identical at 0.248" L x 0.126" W. The CRCW25123K92FKEG has a width of 0.124" (0.002" narrower). Seated heights vary: RC6432F3921CS at 0.026" (0.66mm) versus 0.028" (0.70mm) for both substitutes. These variations fall within standard 2512 package tolerances and do not affect PCB layout or assembly.

Q: What packaging formats are available for each part?

A: The RC6432F3921CS is supplied in bulk packaging. Both CRCW25123K92FKEG and RMCF2512FT3K92 are supplied in Tape & Reel (TR) format, which is standard for automated pick-and-place assembly operations. Tape & Reel packaging is preferred for high-volume manufacturing; bulk packaging is suitable for manual assembly or lower-volume applications.

Q: Do all three parts have the same moisture sensitivity rating?

A: Yes. All three parts carry MSL (Moisture Sensitivity Level) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. No baking or special storage conditions are required prior to soldering.

Q: Are there compliance or regulatory differences between the three parts?

A: All three parts are ROHS3 compliant and REACH unaffected. Both substitute parts carry AEC-Q200 automotive qualification, which the primary Samsung part does not. Regulatory compliance is equivalent across all three for non-automotive applications.