RC5025F4022CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F4022CS is a 40.2 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.667W (2/3W) power dissipation in a 2010 (5025 Metric) surface mount package. This component is classified as Active product status with moisture resistant characteristics and operates across the temperature range of -55°C to 155°C. Substitute parts are identified based on matching electrical specifications (resistance value, tolerance, temperature coefficient) and mechanical compatibility (package size, termination count) while accommodating variations in power rating and application-specific certifications.

Substiute Parts

RC5025F4022CS

Samsung Electro-MechanicsIn Stock: 1004RC5025F4022CS Datasheet

Current PartRFQ

CRCW201040K2FKEF

Vishay DaleIn Stock: 8981CRCW201040K2FKEF Datasheet

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ERJ-12SF4022U

Panasonic Electronic ComponentsIn Stock: 6208ERJ-12SF4022U Datasheet

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RMCF2010FT40K2

Stackpole Electronics IncIn Stock: 28867RMCF2010FT40K2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F4022CS is determined by the following mandatory parameters:

Critical Matching Parameters:

• Resistance value: 40.2 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of Terminations: 2 (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (exact match required)

Allowable Variation Parameters:

• Power Rating: Substitute parts rated at 0.75W (3/4W) are acceptable as this represents an increase in power handling capability without reducing performance in applications requiring 0.667W
• Application Certifications: Automotive AEC-Q200 certification on substitute parts does not restrict use in non-automotive applications and indicates enhanced reliability screening

All identified substitute parts meet these criteria and maintain full electrical and mechanical compatibility with the RC5025F4022CS.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Recommended for New Designs): RMCF2010FT40K2 (Stackpole Electronics Inc) is the preferred substitute. This part maintains Active product status, ensuring long-term availability and manufacturing support. The increased power rating of 0.75W provides design margin over the original 0.667W specification. Automotive AEC-Q200 certification indicates enhanced reliability screening applicable across all application domains.

Secondary Substitute (Active Status): CRCW201040K2FKEF (Vishay Dale) is an alternative with Active product status. This part is suitable for applications where Vishay component qualification is required. The 0.75W power rating and AEC-Q200 certification provide equivalent performance characteristics to the primary substitute.

Legacy Substitute (Not Recommended for New Designs): ERJ-12SF4022U (Panasonic Electronic Components) carries "Not For New Designs" product status. This part is electrically and mechanically compatible but should not be selected for new circuit designs due to potential future discontinuation. Use only for replacement or repair of existing assemblies.

All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8533.21.0030) to the original part.

Frequently Asked Questions (FAQ)

Q: Can CRCW201040K2FKEF replace RC5025F4022CS in existing designs? A: Yes. Both parts share identical resistance (40.2 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and 2010 package dimensions. The CRCW201040K2FKEF has a higher power rating (0.75W vs. 0.667W), which is a non-restrictive difference.

Q: What is the difference between the 0.667W and 0.75W power ratings? A: The 0.75W rating on substitute parts represents increased power dissipation capability. In applications requiring 0.667W or less, the higher-rated parts operate with additional thermal margin and do not affect circuit performance.

Q: Why is ERJ-12SF4022U marked "Not For New Designs"? A: This designation indicates the manufacturer (Panasonic) has classified this part as obsolete or end-of-life for new product development. While electrically and mechanically compatible, it should only be used for maintenance or repair of existing assemblies where continuity is required.

Q: Are all substitute parts automotive-qualified? A: CRCW201040K2FKEF and RMCF2010FT40K2 carry AEC-Q200 automotive certification. ERJ-12SF4022U also carries AEC-Q200 certification. The original RC5025F4022CS does not list automotive certification but is compatible with automotive applications through substitution with certified parts.

Q: Do package dimensions differ between the main part and substitutes? A: No. All parts use the 2010 (5025 Metric) package with identical footprint dimensions (0.197" L x 0.098" W / 5.00mm x 2.50mm). Height variations are minimal (0.66mm to 0.70mm maximum seated height) and do not affect PCB assembly compatibility.

Q: Are there any compliance or regulatory differences? A: All parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications. No regulatory restrictions apply to substitution.

Q: What is Moisture Sensitivity Level 1? A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All parts in this comparison carry MSL 1 rating.