RC5025F4642CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F4642CS is a 46.4 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.667W (2/3W) in a 2010 (5025 Metric) surface mount package. This component is classified as Active product status and is currently in stock with 676 pieces available.

The RC5025F4642CS serves applications requiring precision resistive elements with moisture resistance in compact form factors. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and environmental ratings. Substitution becomes necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit alternative qualified sources meeting identical or superior performance parameters.

Substiute Parts

RC5025F4642CS

Samsung Electro-MechanicsIn Stock: 783RC5025F4642CS Datasheet

Current PartRFQ

ERJ-12SF4642U

Panasonic Electronic ComponentsIn Stock: 6510ERJ-12SF4642U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC5025F4642CS is determined by strict alignment of the following critical parameters:

Electrical Specifications: Resistance value (46.4 kOhms) and tolerance (±1%) must match exactly. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Compatibility: Package designation (2010 / 5025 Metric) ensures physical fit and land pattern compatibility. Dimensions (0.197" L x 0.098" W / 5.00mm x 2.50mm) and termination count (2) are fixed requirements.

Power Rating Consideration: The RC5025F4642CS is rated at 0.667W. Substitute parts with equal or higher power ratings (0.75W or greater) are electrically compatible, as they provide equivalent or superior thermal dissipation capability within the same package footprint.

Environmental & Compliance: RoHS3 compliance, MSL 1 rating, and REACH unaffected status are baseline requirements. Additional certifications (such as AEC-Q200 for automotive applications) represent enhanced qualifications that do not preclude substitution in non-automotive contexts.

Product Status: Active status parts are preferred for new designs. Parts with "Not For New Designs" status remain functionally equivalent but may indicate end-of-life trajectories.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (RC5025F4642CS): The RC5025F4642CS maintains Active product status, indicating ongoing manufacturer support and availability. This part is recommended for new design implementations where supply continuity is a priority.

Substitute Selection (ERJ-12SF4642U): The ERJ-12SF4642U from Panasonic Electronic Components provides electrical and mechanical equivalence with the following distinctions:

• Power rating is increased to 0.75W, providing superior thermal margin within the identical 2010 package footprint
• Temperature coefficient and operating range are identical
• Automotive AEC-Q200 qualification is included, conferring additional reliability assurance
• Product status is "Not For New Designs," indicating this part may experience supply discontinuation

The ERJ-12SF4642U is suitable for retrofit, repair, and legacy system applications where the main part is unavailable. The higher power rating presents no compatibility risk in circuits designed for the 0.667W specification.

Compliance Alignment: Both parts satisfy ROHS3 compliance, MSL 1 moisture sensitivity, and REACH unaffected status, ensuring regulatory equivalence across industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-12SF4642U replace RC5025F4642CS in existing designs?

A: Yes. The ERJ-12SF4642U provides electrical equivalence (46.4 kOhms ±1%, ±100ppm/°C, -55°C ~ 155°C) and mechanical compatibility (2010 package, identical footprint). The higher power rating (0.75W vs. 0.667W) does not create incompatibility; it provides additional thermal headroom.

Q: What is the significance of "Not For New Designs" status on the ERJ-12SF4642U?

A: This designation indicates the manufacturer does not recommend this part for new product development. It reflects potential end-of-life planning. The part remains functionally equivalent and suitable for repair, retrofit, and legacy applications where supply of the primary part is constrained.

Q: Are there dimensional differences between these parts?

A: Both parts conform to the 2010 (5025 Metric) package with identical length (0.197" / 5.00mm) and width (0.098" / 2.50mm). Maximum seated height differs slightly: RC5025F4642CS at 0.026" (0.66mm) and ERJ-12SF4642U at 0.028" (0.70mm). This 0.002" (0.04mm) difference is within standard PCB assembly tolerances and does not affect placement or functionality.

Q: Do packaging differences affect substitution?

A: The RC5025F4642CS packaging is listed as "-" (unspecified). The ERJ-12SF4642U is supplied in Tape & Reel (TR) format. Both are surface mount components in identical packages. Tape & Reel packaging is standard for high-volume assembly and does not affect electrical or mechanical performance.

Q: What compliance certifications apply to both parts?

A: Both RC5025F4642CS and ERJ-12SF4642U are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and are REACH unaffected. The ERJ-12SF4642U includes additional AEC-Q200 automotive qualification, which does not restrict use in non-automotive applications.

Q: Can these parts be used interchangeably in automotive applications?

A: The RC5025F4642CS does not carry AEC-Q200 certification. The ERJ-12SF4642U is AEC-Q200 qualified. For automotive applications requiring AEC-Q200 compliance, the ERJ-12SF4642U is the appropriate selection. For non-automotive applications, both parts are equivalent.