RC5025F44R2CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F44R2CS is a 44.2 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format with a power rating of 0.667W (2/3W). This component features moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 1091 units currently in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

RC5025F44R2CS

Samsung Electro-MechanicsIn Stock: 1111RC5025F44R2CS Datasheet

Current PartRFQ

CRCW201044R2FKEF

Vishay DaleIn Stock: 9220CRCW201044R2FKEF Datasheet

SimilarRFQ

ERJ-12SF44R2U

Panasonic Electronic ComponentsIn Stock: 9232ERJ-12SF44R2U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F44R2CS is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• Resistance value: 44.2 Ohms
• Tolerance: ±1%
• Package format: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Physical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

Allowable Variation: Power rating may exceed the original specification (0.667W minimum) while maintaining all other parameters. Substitute parts with higher power ratings (0.75W or greater) in the identical package remain functionally compatible for applications requiring the RC5025F44R2CS, as higher power capacity does not compromise circuit performance when the original power requirement is met or exceeded.

Parameter Comparison

Engineering Selection Recommendations

CRCW201044R2FKEF (Vishay Dale) is the primary substitute for the RC5025F44R2CS. This part maintains all critical electrical and mechanical parameters while offering increased power capacity (0.75W versus 0.667W). The component carries Active product status, ensuring continued availability and manufacturing support. Automotive AEC-Q200 qualification provides additional reliability assurance for demanding applications. Inventory availability of 9122 units supports production requirements.

ERJ-12SF44R2U (Panasonic Electronic Components) meets all electrical and mechanical substitution criteria with identical resistance, tolerance, temperature coefficient, and operating range. However, this part carries a "Not For New Designs" product status designation. While functionally equivalent and currently in stock (9171 units), this classification indicates Panasonic has discontinued active development for new applications. Selection of this substitute should be limited to legacy system maintenance or replacement scenarios where design continuity is required.

Both substitute parts exceed the original power rating specification, providing enhanced thermal margin without circuit modification. Height variation (0.028" maximum versus 0.026" maximum) remains within typical PCB assembly tolerances for 2010 package components.

Frequently Asked Questions (FAQ)

Q: Can CRCW201044R2FKEF replace RC5025F44R2CS in new designs?

A: Yes. CRCW201044R2FKEF meets all electrical specifications (44.2 Ohms ±1%, ±100ppm/°C, -55°C to 155°C operating range) and mechanical requirements (2010 package, 5.00mm x 2.50mm dimensions). The increased power rating (0.75W versus 0.667W) provides additional thermal capacity. Active product status supports long-term availability.

Q: What is the significance of the "Not For New Designs" status on ERJ-12SF44R2U?

A: This designation indicates Panasonic has transitioned this part to legacy support only. While the component remains functionally equivalent and in current inventory, Panasonic recommends alternative parts for new circuit designs. Use ERJ-12SF44R2U only for replacement or maintenance of existing systems where design continuity is necessary.

Q: Are there height differences between these resistors?

A: Yes. RC5025F44R2CS has a maximum seated height of 0.026" (0.66mm), while both CRCW201044R2FKEF and ERJ-12SF44R2U have maximum seated heights of 0.028" (0.70mm). This 0.002" (0.04mm) difference falls within standard PCB assembly tolerances for 2010 package components and does not affect circuit board layout compatibility.

Q: Do all three parts meet the same regulatory requirements?

A: Yes. RC5025F44R2CS, CRCW201044R2FKEF, and ERJ-12SF44R2U are all ROHS3 Compliant and REACH Unaffected. All three components carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: Why do the substitute parts have higher power ratings?

A: Higher power ratings in the same physical package indicate improved thermal design or material composition. A 0.75W part in the 2010 package can safely dissipate more heat than a 0.667W part. When the original circuit requires 0.667W maximum, a 0.75W substitute operates with additional thermal margin, enhancing reliability without requiring circuit modification.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes, with consideration for height variation. All three parts share identical electrical characteristics (44.2 Ohms ±1%, ±100ppm/°C) and package footprint (2010, 5.00mm x 2.50mm). The maximum 0.002" height difference is accommodated by standard PCB assembly processes. Verify component placement clearance in confined spaces before substitution.