RC5025F49R9CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F49R9CS is a 49.9 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.667W (2/3W) in a 2010 (5025 Metric) package. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

RC5025F49R9CS

Samsung Electro-MechanicsIn Stock: 1219RC5025F49R9CS Datasheet

Current PartRFQ

AC2010FK-0749R9L

YAGEOIn Stock: 4512AC2010FK-0749R9L Datasheet

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RC2010FK-0749R9L

YAGEOIn Stock: 13515RC2010FK-0749R9L Datasheet

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CRCW201049R9FKEF

Vishay DaleIn Stock: 27959CRCW201049R9FKEF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC5025F49R9CS is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Resistance value: 49.9 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 2010 (5025 Metric) (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Composition: Thick Film (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variation:

• Power Rating: Substitutes rated at 0.75W (3/4W) are acceptable as this represents an upgrade in power dissipation capability while maintaining all other electrical and mechanical specifications.

All identified substitute parts meet these criteria and are suitable for direct component replacement in applications where the RC5025F49R9CS is specified.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance. The primary distinction among substitutes relates to additional certifications and packaging formats:

AC2010FK-0749R9L (YAGEO): Includes Automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade component specifications. Supplied in Tape & Reel packaging with 4454 pieces in stock.

RC2010FK-0749R9L (YAGEO): Provides the highest inventory availability at 13445 pieces in stock. Maintains standard thick film construction without automotive qualification. Supplied in Tape & Reel packaging.

CRCW201049R9FKEF (Vishay Dale): Includes Automotive AEC-Q200 qualification with the largest inventory position at 27930 pieces in stock. Supplied in Tape & Reel packaging. Maximum seated height of 0.028" (0.70mm) should be verified against PCB layout constraints.

All substitute parts are electrically and mechanically equivalent to the RC5025F49R9CS with the allowable power rating upgrade from 0.667W to 0.75W.

Frequently Asked Questions (FAQ)

Q: Can AC2010FK-0749R9L replace RC5025F49R9CS directly on the PCB?

A: Yes. Both components share identical resistance (49.9 Ohms), tolerance (±1%), package (2010/5025 Metric), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The higher power rating (0.75W vs 0.667W) represents an upgrade in thermal capability.

Q: What is the difference between RC2010FK-0749R9L and AC2010FK-0749R9L?

A: Both are YAGEO 49.9 Ohm ±1% 2010 package resistors with identical electrical specifications. AC2010FK-0749R9L includes Automotive AEC-Q200 certification; RC2010FK-0749R9L does not. Selection depends on application requirements for automotive qualification.

Q: Is the height difference between CRCW201049R9FKEF (0.028") and RC5025F49R9CS (0.026") significant?

A: The 0.002" (0.04mm) height difference is minimal. Verify against PCB layout constraints, particularly for applications with tight vertical clearance requirements or high-density component placement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC5025F49R9CS, AC2010FK-0749R9L, RC2010FK-0749R9L, and CRCW201049R9FKEF are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute offers the best inventory availability?

A: CRCW201049R9FKEF (Vishay Dale) provides the highest stock level at 27930 pieces. RC2010FK-0749R9L (YAGEO) offers 13445 pieces, and AC2010FK-0749R9L (YAGEO) provides 4454 pieces.

Q: Can these parts be used interchangeably in automotive applications?

A: AC2010FK-0749R9L and CRCW201049R9FKEF carry AEC-Q200 automotive qualification. RC2010FK-0749R9L does not. For automotive applications, use AC2010FK-0749R9L or CRCW201049R9FKEF.