RC5025F20R5CS Chip Resistor 20.5 Ohm Equivalent & Substitute Parts

Part Overview

The RC5025F20R5CS is a 20.5 Ohm 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 with ±1% tolerance and features moisture-resistant construction. The part is currently in active production status with 921 pieces available in inventory.

Equivalent and substitute parts are identified when applications require alternative sourcing due to supply constraints, inventory availability, or design flexibility within the same electrical and mechanical specifications. Substitute parts must maintain identical resistance values, tolerance ratings, package dimensions, and operating temperature ranges to ensure direct functional compatibility.

Substiute Parts

RC5025F20R5CS

Samsung Electro-MechanicsIn Stock: 986RC5025F20R5CS Datasheet

Current PartRFQ

CRCW201020R5FKEF

Vishay DaleIn Stock: 10573CRCW201020R5FKEF Datasheet

SimilarRFQ

ERJ-12SF20R5U

Panasonic Electronic ComponentsIn Stock: 13615ERJ-12SF20R5U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC5025F20R5CS are qualified based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 20.5 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)
• RoHS3 compliance
• MSL 1 rating

Allowable Variation:

• Power rating: Substitute parts rated at 0.75W (3/4W) or higher are acceptable for applications requiring the 0.667W (2/3W) rated component, as higher power ratings provide equivalent or superior thermal performance within the same package envelope.

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

CRCW201020R5FKEF (Vishay Dale) is the primary substitute option. This part maintains active production status and carries AEC-Q200 automotive qualification. The 0.75W power rating provides thermal margin above the 0.667W requirement. Physical dimensions and height specifications are compatible with PCB layouts designed for the RC5025F20R5CS. RoHS3 compliance and MSL 1 rating ensure equivalent environmental and handling characteristics.

ERJ-12SF20R5U (Panasonic Electronic Components) is a secondary substitute option. Although this part meets all electrical and mechanical parameters, it carries a "Not For New Designs" product status designation. This part is suitable for replacement or repair applications in existing designs but should not be selected for new product development. AEC-Q200 automotive qualification and 0.75W power rating are equivalent to the Vishay Dale alternative.

For new designs, CRCW201020R5FKEF is the recommended substitute. For legacy system maintenance or repair, ERJ-12SF20R5U remains functionally compatible.

Frequently Asked Questions (FAQ)

Q: Can CRCW201020R5FKEF replace RC5025F20R5CS in existing designs?

A: Yes. Both parts share identical resistance value (20.5 Ohms), tolerance (±1%), package format (2010), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to +155°C). The higher power rating (0.75W vs. 0.667W) does not create compatibility issues and provides additional thermal margin.

Q: What is the significance of the height difference between RC5025F20R5CS (0.66mm) and substitute parts (0.70mm)?

A: The 0.04mm height difference is within typical PCB assembly tolerances and does not affect functional compatibility. Both dimensions comply with 2010 package specifications. Verify clearance in applications with height-constrained layouts.

Q: Why is ERJ-12SF20R5U marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development for this part number. While the part remains functionally equivalent and available in inventory, it should be used only for repair, replacement, or legacy system support. New product designs should specify CRCW201020R5FKEF or the original RC5025F20R5CS.

Q: Are all three parts RoHS3 compliant?

A: Yes. RC5025F20R5CS, CRCW201020R5FKEF, and ERJ-12SF20R5U are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental and regulatory compliance.

Q: What is the difference between the packaging formats listed?

A: RC5025F20R5CS is supplied in standard packaging format. CRCW201020R5FKEF and ERJ-12SF20R5U are supplied in Tape & Reel (TR) format, which is standard for high-volume automated assembly. Both formats contain identical components; packaging format selection depends on assembly process requirements.