RC5025F40R2CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F40R2CS is a 40.2 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.667W (2/3W) power dissipation in a 2010 (5025 Metric) package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The part operates across -55°C to 155°C with a temperature coefficient of ±100ppm/°C.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package dimensions, termination count). Alternative sources become necessary for supply chain optimization, lead time reduction, or when specific certifications such as automotive AEC-Q200 qualification are required for end-application compliance.

Substiute Parts

RC5025F40R2CS

Samsung Electro-MechanicsIn Stock: 1166RC5025F40R2CS Datasheet

Current PartRFQ

AC2010FK-0740R2L

YAGEOIn Stock: 1317AC2010FK-0740R2L Datasheet

UpgradeRFQ

CRCW201040R2FKEF

Vishay DaleIn Stock: 8810CRCW201040R2FKEF Datasheet

SimilarRFQ

ERJ-12SF40R2U

Panasonic Electronic ComponentsIn Stock: 5804ERJ-12SF40R2U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F40R2CS is determined by the following mandatory parameters:

Electrical Compatibility Requirements:

• Resistance value: 40.2 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: minimum 0.667W (equal or higher acceptable)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (minimum requirement)

Mechanical Compatibility Requirements:

• Package / Case: 2010 (5025 Metric) (exact match required)
• Number of terminations: 2 (exact match required)
• Physical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm) (exact match required)

Compliance Requirements:

• RoHS3 Compliant (mandatory)
• Moisture Sensitivity Level: MSL 1 (unlimited) (exact match required)

All identified substitute parts meet these criteria. Parts with higher power ratings (0.75W / 3/4W) are acceptable as they provide enhanced thermal margin while maintaining all other electrical and mechanical specifications. Automotive AEC-Q200 certification, where present, represents an additional qualification level and does not disqualify substitution for non-automotive applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Recommended for New Designs): AC2010FK-0740R2L (YAGEO) is the preferred upgrade substitute. This part maintains all electrical and mechanical compatibility with the RC5025F40R2CS while offering a higher power rating (0.75W vs. 0.667W), providing additional thermal margin. The part carries Active product status, ensuring long-term availability and supply chain stability. Automotive AEC-Q200 certification qualifies this component for automotive applications where the original part may not be specified.

Secondary Substitute (High Inventory Availability): CRCW201040R2FKEF (Vishay Dale) provides equivalent electrical performance with the highest current inventory level (8772 pcs). This part is manufactured by a tier-1 resistor supplier with established quality infrastructure. Active product status and AEC-Q200 certification support both commercial and automotive applications. Seated height is marginally higher (0.028" vs. 0.026"), which must be verified against PCB layout constraints in space-critical applications.

Legacy Substitute (Not Recommended for New Designs): ERJ-12SF40R2U (Panasonic Electronic Components) meets all electrical and mechanical specifications but carries "Not For New Designs" product status. This designation indicates the manufacturer is phasing out this product line. While current inventory is available (5775 pcs), this part should be selected only when existing designs require continuity or when supply of active alternatives is constrained. Seated height matches CRCW201040R2FKEF at 0.028".

Selection Criteria Summary:

• For new product designs: AC2010FK-0740R2L
• For high-volume procurement: CRCW201040R2FKEF
• For legacy system maintenance only: ERJ-12SF40R2U

All substitute parts comply with RoHS3 and REACH requirements. ECCN classification (EAR99) and HTSUS code (8533.21.0030) remain consistent across all alternatives.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RC5025F40R2CS with a part rated at 0.75W instead of 0.667W?

A: Yes. A higher power rating (0.75W) is acceptable as a direct substitute. The 0.75W rating provides additional thermal headroom and does not degrade performance in applications designed for 0.667W. All substitute parts listed (AC2010FK-0740R2L, CRCW201040R2FKEF, ERJ-12SF40R2U) carry 0.75W ratings and are fully compatible.

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

A: The length and width dimensions are identical across all parts (0.197" L x 0.098" W / 5.00mm x 2.50mm). Seated height varies slightly: RC5025F40R2CS is 0.026" (0.66mm), while AC2010FK-0740R2L is 0.026" (0.65mm), and both CRCW201040R2FKEF and ERJ-12SF40R2U are 0.028" (0.70mm). These variations are within standard manufacturing tolerances for 2010 package components. Verify clearance in PCB layouts with tight vertical constraints.

Q: What is the difference between "Active" and "Not For New Designs" product status?

A: "Active" status indicates the manufacturer continues production and supports long-term supply. "Not For New Designs" indicates the manufacturer is discontinuing the product line; existing inventory may be available, but future procurement cannot be guaranteed. For new product development, select only parts with Active status (AC2010FK-0740R2L or CRCW201040R2FKEF).

Q: Do all substitute parts have the same moisture sensitivity rating?

A: Yes. All parts, including the main part RC5025F40R2CS, carry MSL 1 (Unlimited) rating. This indicates no moisture sensitivity restrictions and no special handling or baking requirements before soldering.

Q: Is AEC-Q200 certification required for my application?

A: AEC-Q200 is an automotive qualification standard. If your application is non-automotive, AEC-Q200 certification is not required but does not prevent use. If your application is automotive, AEC-Q200 certification is mandatory; select AC2010FK-0740R2L or CRCW201040R2FKEF, both of which carry this qualification.

Q: Can I use these parts interchangeably on the same PCB?

A: Yes, all parts are mechanically and electrically interchangeable. The 2010 package footprint is identical, and all parts use the same two-termination configuration. Verify that the slight height variations (0.026" to 0.028") do not conflict with component placement or clearance requirements in your specific layout.

Q: What is the temperature coefficient, and why does it matter?

A: The temperature coefficient (±100ppm/°C) specifies how much the resistance value changes per degree Celsius of temperature change. All listed parts share this specification, ensuring consistent performance across the -55°C to 155°C operating range. This parameter is critical for precision analog circuits and must match the original part specification.

Q: Are all parts RoHS3 compliant?

A: Yes. All parts listed (RC5025F40R2CS, AC2010FK-0740R2L, CRCW201040R2FKEF, ERJ-12SF40R2U) are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for commercial and industrial applications.