RC5025F4992CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F4992CS is a 49.9 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format with 0.667W power rating. This component is classified as Active product status and is designed for general-purpose applications requiring moisture-resistant thick film construction. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, application-specific certifications, or design flexibility needs.

Substiute Parts

RC5025F4992CS

Samsung Electro-MechanicsIn Stock: 857RC5025F4992CS Datasheet

Current PartRFQ

RC2010FK-0749K9L

YAGEOIn Stock: 777RC2010FK-0749K9L Datasheet

UpgradeRFQ

CRCW201049K9FKEF

Vishay DaleIn Stock: 8500CRCW201049K9FKEF Datasheet

SimilarRFQ

RMCF2010FT49K9

Stackpole Electronics IncIn Stock: 15337RMCF2010FT49K9 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F4992CS is determined by the following criteria:

Mandatory Matching Parameters:

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

Allowable Variation:

• Power Rating: Substitute parts rated at 0.75W (3/4W) are acceptable as they exceed the 0.667W requirement of the main part, providing enhanced thermal margin within the same physical package dimensions.

Certification Compatibility:

• Substitute parts with AEC-Q200 automotive qualification are compatible with applications not requiring automotive certification, as AEC-Q200 represents an additional quality tier.

Parameter Comparison

Engineering Selection Recommendations

RC2010FK-0749K9L (YAGEO): This substitute part is functionally equivalent with identical electrical specifications and package dimensions. The increased power rating of 0.75W provides additional thermal headroom compared to the 0.667W main part specification. YAGEO RC_L series maintains Active product status and full ROHS3 compliance. Selection is appropriate for applications where YAGEO component qualification is acceptable and higher power margin is beneficial.

CRCW201049K9FKEF (Vishay Dale): This substitute incorporates AEC-Q200 automotive qualification in addition to standard thick film construction. The 0.75W power rating and identical electrical parameters ensure functional compatibility. CRCW series maintains Active product status and ROHS3 compliance. Selection is appropriate for applications requiring automotive-grade reliability or where AEC-Q200 certification is mandated by design standards.

RMCF2010FT49K9 (Stackpole Electronics): This substitute provides AEC-Q200 automotive qualification with 0.75W power rating and identical electrical specifications. RMCF series maintains Active product status and ROHS3 compliance. Selection is appropriate for automotive applications or designs requiring automotive-grade component qualification.

All three substitute parts are mechanically and electrically compatible with the RC5025F4992CS within the specified parameter tolerances.

Frequently Asked Questions (FAQ)

Q: Can RC2010FK-0749K9L replace RC5025F4992CS in all applications?

A: Yes, within the specified electrical and mechanical parameters. The RC2010FK-0749K9L maintains identical resistance (49.9 kOhms), tolerance (±1%), package (2010), composition (thick film), temperature coefficient (±100 ppm/°C), and operating range (-55 to 155°C). The increased power rating (0.75W vs. 0.667W) is a non-limiting parameter that provides additional thermal margin.

Q: What is the difference between the main part and substitute parts regarding power rating?

A: The RC5025F4992CS is rated at 0.667W (2/3W), while all substitute parts are rated at 0.75W (3/4W). Both ratings are within the same 2010 package format with identical physical dimensions. The higher power rating of substitute parts indicates greater thermal dissipation capability and does not restrict their use in applications designed for the lower-rated main part.

Q: Are AEC-Q200 certified parts (CRCW201049K9FKEF and RMCF2010FT49K9) suitable for non-automotive applications?

A: Yes. AEC-Q200 certification represents an additional quality and reliability qualification tier. Parts meeting AEC-Q200 standards are fully compatible with non-automotive applications and provide equivalent or superior performance characteristics compared to non-certified alternatives with identical electrical specifications.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity limitations and does not require special moisture control during storage, handling, or assembly. All parts in this comparison carry MSL 1 rating, eliminating moisture-related compatibility concerns.

Q: Are there any dimensional differences between the main part and substitute parts?

A: All parts share identical package designation (2010 / 5025 Metric) with length 0.197" (5.00mm) and width 0.098" (2.50mm). Maximum seated heights vary slightly (0.66mm for RC5025F4992CS, 0.65mm for RC2010FK-0749K9L, and 0.70mm for CRCW201049K9FKEF and RMCF2010FT49K9), but these variations remain within standard PCB assembly tolerances and do not affect interchangeability.

Q: Can substitute parts be mixed in the same design or assembly?

A: Yes. All substitute parts meet identical electrical specifications and package requirements. Mixed usage is permissible from an engineering compatibility standpoint, though procurement and inventory management practices may recommend standardization to a single part number per design.