RC6432F38R3CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F38R3CS is a 38.3 Ohm ±1% 1W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This component is classified as Active product status with moisture resistant characteristics and unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and REACH unaffected, suitable for general industrial and commercial applications requiring precision resistive elements with stable temperature performance across -55°C to 155°C operating range.

Equivalent and substitute parts are identified when alternative manufacturers offer components with identical electrical specifications, mechanical dimensions, and compliance certifications, enabling design flexibility and supply chain continuity.

Substiute Parts

RC6432F38R3CS

Samsung Electro-MechanicsIn Stock: 1073RC6432F38R3CS Datasheet

Current PartRFQ

CRCW251238R3FKEG

Vishay DaleIn Stock: 3635CRCW251238R3FKEG Datasheet

SimilarRFQ

RMCF2512FT38R3

Stackpole Electronics IncIn Stock: 4860RMCF2512FT38R3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432F38R3CS are identified based on strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Resistance value: 38.3 Ohms (exact match required)
• Tolerance: ±1% (precision grade match)
• Power rating: 1W (thermal capacity match)
• Temperature coefficient: ±100ppm/°C (stability match)
• Operating temperature range: -55°C to 155°C (environmental match)

Mechanical Equivalence Criteria:

• Package designation: 2512 (6432 Metric) (footprint compatibility)
• Composition: Thick Film (manufacturing process match)
• Number of terminations: 2 (connection configuration)

Compliance Equivalence Criteria:

• RoHS3 compliance (regulatory requirement)
• MSL 1 rating (moisture handling compatibility)
• REACH unaffected status (material restriction compliance)

Two substitute parts meet all equivalence criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

RC6432F38R3CS (Samsung Electro-Mechanics)

Primary selection for applications requiring moisture-resistant thick film construction. Active product status with established supply chain. Suitable for general industrial applications where moisture resistance is a specified requirement.

CRCW251238R3FKEG (Vishay Dale)

Qualified substitute with automotive AEC-Q200 rating. Appropriate for applications requiring automotive-grade reliability and qualification. Tape & Reel packaging standard. Slightly reduced width (3.15mm vs 3.20mm) and increased height (0.70mm vs 0.66mm) require PCB layout verification for height-constrained applications.

RMCF2512FT38R3 (Stackpole Electronics Inc)

Qualified substitute with automotive AEC-Q200 rating. Appropriate for applications requiring automotive-grade reliability and qualification. Tape & Reel packaging standard. Dimensions match RC6432F38R3CS (0.248" × 0.126" × 0.028" max height) with increased height (0.70mm vs 0.66mm) requiring PCB layout verification for height-constrained applications.

All three parts maintain identical electrical performance, compliance certifications, and thermal operating envelope. Selection between substitutes depends on supply availability, packaging format requirements, and mechanical clearance constraints in the target application.

Frequently Asked Questions (FAQ)

Q: Can CRCW251238R3FKEG or RMCF2512FT38R3 be used as direct replacements for RC6432F38R3CS?

A: Yes. Both substitute parts meet all electrical specifications (38.3 Ohms ±1%, 1W, ±100ppm/°C, -55°C to 155°C), mechanical requirements (2512 package, thick film composition, 2 terminations), and compliance standards (ROHS3, MSL 1, REACH unaffected). Dimensional variations in width and height are within standard 2512 package tolerances but require PCB layout verification for height-constrained designs.

Q: What is the difference between the three parts?

A: Electrical and thermal specifications are identical. Primary differences are: (1) Manufacturer and series designation; (2) Automotive AEC-Q200 qualification present in Vishay and Stackpole parts but not specified for Samsung part; (3) Minor dimensional variations within 2512 package tolerance band; (4) Packaging format (Samsung part packaging not specified; Vishay and Stackpole supplied in Tape & Reel).

Q: Are the dimensional differences significant?

A: Width variation (3.15mm to 3.20mm) and height variation (0.66mm to 0.70mm) are within standard 2512 package tolerances. For applications with tight PCB clearance specifications, particularly height-constrained designs, dimensional verification against board layout is required before substitution.

Q: Do all parts have the same moisture sensitivity level?

A: Yes. All three parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions and unlimited shelf life under standard storage conditions.

Q: Which part should be selected for automotive applications?

A: CRCW251238R3FKEG and RMCF2512FT38R3 both carry AEC-Q200 automotive qualification. RC6432F38R3CS does not specify automotive qualification. For automotive applications, either Vishay or Stackpole part is appropriate based on supply availability and packaging requirements.

Q: Are there any compliance or regulatory differences?

A: No. All three parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications.