RC5025F1541CS Equivalent & Substitute Parts

Part Overview

The RC5025F1541CS is a 1.54 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) 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 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance envelope, enabling direct replacement in circuit designs where the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

RC5025F1541CS

Samsung Electro-MechanicsIn Stock: 956RC5025F1541CS Datasheet

Current PartRFQ

CRCW20101K54FKEF

Vishay DaleIn Stock: 1350CRCW20101K54FKEF Datasheet

SimilarRFQ

ERJ-12SF1541U

Panasonic Electronic ComponentsIn Stock: 9232ERJ-12SF1541U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F1541CS is determined by the following criteria:

Mandatory Matching Parameters:

• Resistance value: 1.54 kOhms
• Tolerance: ±1%
• Package / Case: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Number of Terminations: 2

Allowable Variation:

• Power rating may exceed the primary part specification (0.667W minimum)
• Physical height may vary within package specification limits
• Packaging format (bulk vs. Tape & Reel) does not affect electrical substitution

The identified substitute parts CRCW20101K54FKEF and ERJ-12SF1541U meet all mandatory matching parameters. Both parts feature identical resistance, tolerance, package footprint, and temperature characteristics. The substitute parts provide higher power ratings (0.75W / 3/4W) and automotive AEC-Q200 qualification, representing enhanced performance specifications suitable for the same circuit applications.

Parameter Comparison

Engineering Selection Recommendations

CRCW20101K54FKEF (Vishay Dale) is the primary substitute option. This part maintains Active product status, ensuring continued availability and manufacturing support. The CRCW20101K54FKEF provides identical electrical specifications with enhanced power rating (0.75W vs. 0.667W) and automotive AEC-Q200 qualification. The part is supplied in Tape & Reel packaging with 1242 units in current inventory. The marginal increase in seated height (0.028" vs. 0.026") remains within standard PCB assembly tolerances for the 2010 package format.

ERJ-12SF1541U (Panasonic Electronic Components) is a secondary substitute option. While this part meets all electrical and mechanical compatibility requirements, it carries a "Not For New Designs" product status designation. This classification indicates the manufacturer is phasing out this component line. The ERJ-12SF1541U should be selected only when CRCW20101K54FKEF availability is constrained or when existing design documentation specifically requires Panasonic sourcing. Current inventory of 9205 units provides near-term availability.

Both substitute parts are ROHS3 compliant with MSL 1 rating, matching the environmental and regulatory compliance profile of the primary part.

Frequently Asked Questions (FAQ)

Q: Can CRCW20101K54FKEF directly replace RC5025F1541CS in existing designs?

A: Yes. Both parts share identical resistance (1.54 kOhms), tolerance (±1%), package footprint (2010 / 5025 Metric), and temperature characteristics (-55°C ~ 155°C). The CRCW20101K54FKEF provides higher power rating (0.75W vs. 0.667W), which is compatible with circuits designed for the lower-rated primary part. Seated height difference (0.028" vs. 0.026") is within standard PCB assembly specifications for this package class.

Q: What is the significance of the higher power rating on substitute parts?

A: The substitute parts (CRCW20101K54FKEF and ERJ-12SF1541U) are rated for 0.75W (3/4W) compared to the primary part's 0.667W (2/3W). A higher power rating indicates the component can safely dissipate more thermal energy without exceeding maximum junction temperature. This represents a performance enhancement and does not create compatibility issues in circuits designed for the lower rating.

Q: Why is ERJ-12SF1541U marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that Panasonic Electronic Components is discontinuing this product line. While the part remains electrically and mechanically compatible, new circuit designs should prioritize CRCW20101K54FKEF or the primary RC5025F1541CS to ensure long-term component availability and manufacturing continuity.

Q: Are there packaging format differences between the main part and substitutes?

A: The primary part RC5025F1541CS is supplied in bulk packaging format. The substitute parts CRCW20101K54FKEF and ERJ-12SF1541U are supplied in Tape & Reel (TR) format. This difference affects procurement and assembly processes but does not impact electrical performance or mechanical compatibility. Tape & Reel packaging is standard for high-volume surface-mount assembly operations.

Q: Do all parts meet the same compliance and regulatory requirements?

A: Yes. The primary part and both substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control requirements during storage or handling. Compliance profiles are identical across all three parts.

Q: What is the basis for substitution between these three parts?

A: Substitution is based on matching electrical specifications (resistance, tolerance, temperature coefficient), identical package footprint (2010 / 5025 Metric), and compatible operating temperature range (-55°C ~ 155°C). All three parts are thick film chip resistors with two terminations and identical physical dimensions (0.197" L x 0.098" W). The substitute parts exceed the minimum power rating requirement, making them suitable for direct replacement in existing circuit designs.