RC5025F2051CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F2051CS is a 2.05 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 suitable for general industrial applications. The part maintains Active product status with 925 units currently in stock.

Substitute parts are identified to address inventory availability, extended lead times, or specific application requirements while maintaining electrical and mechanical compatibility within the defined parameter constraints.

Substiute Parts

RC5025F2051CS

Samsung Electro-MechanicsIn Stock: 1008RC5025F2051CS Datasheet

Current PartRFQ

CRCW20102K05FKEF

Vishay DaleIn Stock: 6762CRCW20102K05FKEF Datasheet

SimilarRFQ

ERJ-12SF2051U

Panasonic Electronic ComponentsIn Stock: 15943ERJ-12SF2051U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC5025F2051CS is based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 2.05 kOhms (exact)
• Tolerance: ±1% (exact)
• Package format: 2010 (5025 Metric) (exact)
• Composition: Thick Film (exact)
• Temperature coefficient: ±100ppm/°C (exact)
• Operating temperature range: -55°C ~ 155°C (exact)

Allowable Variation:

• Power rating: Substitute parts must equal or exceed 0.667W. Higher power ratings (0.75W) are acceptable as they provide equal or superior thermal performance in the same physical package.

Compliance Requirements:

• RoHS3 compliance required
• MSL 1 rating required
• REACH Unaffected status required

The identified substitute parts meet all mandatory parameters and allowable variations. Differences in packaging format (Tape & Reel vs. bulk) and additional certifications (AEC-Q200) do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CRCW20102K05FKEF (Vishay Dale)

The CRCW20102K05FKEF is the preferred substitute for the RC5025F2051CS. This part maintains Active product status and meets all electrical and mechanical compatibility requirements. The 0.75W power rating exceeds the original 0.667W specification, providing thermal margin within the identical 2010 package footprint. AEC-Q200 automotive qualification provides additional reliability assurance. Tape & Reel packaging is standard for production environments.

Secondary Substitute: ERJ-12SF2051U (Panasonic Electronic Components)

The ERJ-12SF2051U is electrically and mechanically compatible with the RC5025F2051CS. However, this part carries a "Not For New Designs" product status designation. Use of this component is limited to legacy system maintenance, repair, or applications where existing design validation has already been completed. The 0.75W power rating and AEC-Q200 certification match the Vishay alternative.

Selection Criteria:

• For new designs or production systems: Select CRCW20102K05FKEF
• For legacy system support only: ERJ-12SF2051U is acceptable if design validation history exists

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher power rating (0.75W instead of 0.667W)?

A: Yes. A higher power rating in the same physical package indicates superior thermal performance and does not compromise circuit function. The 0.75W rated substitutes operate within identical electrical and thermal parameters as the original 0.667W part.

Q: Are the physical dimensions identical between the main part and substitutes?

A: The length and width are identical (5.00mm x 2.50mm). The seated height differs slightly: RC5025F2051CS is 0.66mm maximum, while CRCW20102K05FKEF and ERJ-12SF2051U are 0.70mm maximum. This 0.04mm difference is within standard PCB assembly tolerances and does not affect placement or soldering.

Q: What does "Not For New Designs" mean for the ERJ-12SF2051U?

A: This designation indicates the manufacturer is discontinuing the product line. The part remains available in inventory but is not recommended for new circuit designs. Existing designs using this component may continue production, but new designs should specify the CRCW20102K05FKEF alternative.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and REACH Unaffected designation, matching the regulatory compliance of the original RC5025F2051CS.

Q: Can I interchange these parts without PCB redesign?

A: Yes. All parts use the identical 2010 (5025 Metric) package with the same footprint. The maximum 0.04mm height variation is within standard PCB assembly specifications and requires no design modification.

Q: What is the difference between Tape & Reel and bulk packaging?

A: Tape & Reel packaging is standard for automated assembly lines and high-volume production. Bulk packaging is used for manual assembly or low-volume applications. The electrical and mechanical properties are identical; packaging format affects only handling and assembly process.