RC5025F3161CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F3161CS is a 3.16 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format. This component is rated for 0.667W (2/3W) continuous power dissipation and features moisture-resistant construction with an operating temperature range of -55°C to 155°C. The part maintains Active product status and is ROHS3 compliant with MSL 1 rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the same package footprint and core electrical specifications. Alternative sources become necessary for supply chain continuity, inventory availability, or application-specific requirements such as automotive qualification.

Substiute Parts

RC5025F3161CS

Samsung Electro-MechanicsIn Stock: 753RC5025F3161CS Datasheet

Current PartRFQ

CRCW20103K16FKEF

Vishay DaleIn Stock: 8756CRCW20103K16FKEF Datasheet

SimilarRFQ

ERJ-12SF3161U

Panasonic Electronic ComponentsIn Stock: 5133ERJ-12SF3161U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F3161CS is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 3.16 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• Moisture sensitivity level: MSL 1 (exact match required)
• RoHS compliance: ROHS3 (exact match required)

Secondary Compatibility Factors:

• Power rating: Substitute parts rated at 0.75W (3/4W) or higher are compatible with applications designed for 0.667W (2/3W) operation
• Physical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm) footprint maintained across all substitutes
• Termination count: 2 terminations (exact match required)

The identified substitute parts meet all primary criteria and maintain secondary compatibility through equal or superior power ratings within the same package envelope.

Parameter Comparison

Engineering Selection Recommendations

RC5025F3161CS (Samsung Electro-Mechanics) — Primary Selection

The RC5025F3161CS maintains Active product status and represents the baseline specification. This part is suitable for general industrial and consumer applications requiring standard thick film resistor performance. Samsung Electro-Mechanics classification as Active ensures continued manufacturing support and supply availability.

CRCW20103K16FKEF (Vishay Dale) — Preferred Substitute

The CRCW20103K16FKEF is the recommended substitute for new designs and ongoing production. This part carries Active product status, maintains identical electrical specifications, and provides a 0.083W power rating margin (0.75W vs. 0.667W). The AEC-Q200 automotive qualification extends application scope to automotive-grade circuits. Vishay Dale's CRCW series represents a mature, widely-adopted platform with established supply chain presence.

ERJ-12SF3161U (Panasonic Electronic Components) — Legacy Alternative

The ERJ-12SF3161U meets all electrical and mechanical compatibility requirements but carries a "Not For New Designs" product status designation. This part is suitable only for sustaining production of existing designs or legacy system maintenance. The AEC-Q200 automotive qualification is present, but the discontinued design status limits its application to replacement scenarios where supply from existing inventory is available.

Frequently Asked Questions (FAQ)

Q: Can CRCW20103K16FKEF replace RC5025F3161CS in existing designs?

A: Yes. The CRCW20103K16FKEF maintains identical resistance (3.16 kOhms), tolerance (±1%), package format (2010), composition (thick film), temperature coefficient (±100ppm/°C), and operating range (-55°C to 155°C). The higher power rating (0.75W vs. 0.667W) provides additional thermal margin. No circuit redesign is required.

Q: What is the difference between the 0.667W and 0.75W power ratings?

A: Both substitute parts are rated for higher continuous power dissipation than the original RC5025F3161CS. A 0.75W-rated resistor can safely dissipate 0.667W continuously with lower junction temperature rise. This represents a design margin benefit with no electrical performance change at the specified operating point.

Q: Is ERJ-12SF3161U suitable for new product development?

A: No. The ERJ-12SF3161U carries a "Not For New Designs" product status. This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new designs. Use this part only for sustaining production of existing products or emergency replacement scenarios.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts share the 2010 (5025 Metric) package format with 0.197" L x 0.098" W (5.00mm x 2.50mm) footprint. Maximum seated height varies slightly (0.66mm for RC5025F3161CS, 0.70mm for both substitutes), but this difference remains within standard PCB assembly tolerances and does not affect board-level compatibility.

Q: Do the substitute parts require different soldering profiles?

A: No. All three parts use identical 2-termination thick film construction on the same package format. Standard SMD reflow soldering processes applicable to 2010 package resistors are compatible with all parts without modification.

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

A: AEC-Q200 is an automotive industry standard qualification for passive components. The CRCW20103K16FKEF and ERJ-12SF3161U both carry this certification, enabling their use in automotive-grade applications. The RC5025F3161CS does not carry this designation and is restricted to non-automotive applications.

Q: Can I mix RC5025F3161CS and CRCW20103K16FKEF in the same production batch?

A: Yes. Both parts meet identical electrical specifications and package requirements. Mixed sourcing is permissible from a functional standpoint. However, manufacturing and quality documentation should reflect the dual-source strategy to maintain traceability.