CRCW20105R10FNEF Equivalent & Substitute Parts

Part Overview

The CRCW20105R10FNEF is a 5.1 Ohm ±1% 0.75W thick film chip resistor in 2010 (5025 Metric) package manufactured by Vishay Dale. This component is rated for automotive applications under AEC-Q200 standard and operates across -55°C to 155°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

CRCW20105R10FNEF

Vishay DaleIn Stock: 946CRCW20105R10FNEF Datasheet

Current PartRFQ

CRCW20105R10FKEF

Vishay DaleIn Stock: 8529CRCW20105R10FKEF Datasheet

UpgradeRFQ

RC2010FK-075R1L

YAGEOIn Stock: 9005RC2010FK-075R1L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CRCW20105R10FNEF is determined by strict equivalence across the following critical parameters:

• Resistance value: 5.1 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.75W minimum
• Package: 2010 (5025 Metric) form factor
• Composition: Thick film construction
• Operating temperature range: -55°C to 155°C minimum
• Termination count: 2 leads
• RoHS compliance: ROHS3 or equivalent

Two substitute parts meet these criteria. The CRCW20105R10FKEF represents an upgrade variant within the same manufacturer series with improved temperature coefficient performance. The RC2010FK-075R1L from YAGEO provides cross-manufacturer equivalence with moisture-resistant construction.

Parameter Comparison

Engineering Selection Recommendations

CRCW20105R10FKEF (Vishay Dale Upgrade): This part maintains full Vishay Dale series continuity while offering improved temperature coefficient performance (±100ppm/°C versus ±200ppm/°C). Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance. Selection of this upgrade variant is appropriate when tighter temperature stability is required within the same supply chain.

RC2010FK-075R1L (YAGEO Alternative): This part provides cross-manufacturer equivalence with identical electrical specifications and package dimensions. The moisture-resistant feature designation and marginally lower seated height (0.026" versus 0.028") represent minor physical variations. ROHS3 compliance and MSL 1 rating ensure equivalent environmental performance. This alternative is suitable for applications where YAGEO supply chain access or inventory availability is advantageous.

All three parts are active production components with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can CRCW20105R10FKEF directly replace CRCW20105R10FNEF in production?

A: Yes. Both parts share identical resistance (5.1 Ohms), tolerance (±1%), power rating (0.75W), package (2010), and operating temperature range (-55°C to 155°C). The CRCW20105R10FKEF offers superior temperature coefficient stability (±100ppm/°C). Footprint and PCB layout compatibility are identical.

Q: What is the primary difference between CRCW20105R10FNEF and CRCW20105R10FKEF?

A: Temperature coefficient specification. The FNEF variant operates at ±200ppm/°C while the FKEF variant operates at ±100ppm/°C. Both maintain the same resistance tolerance, power rating, and package specifications.

Q: Is RC2010FK-075R1L compatible with CRCW20105R10FNEF in automotive applications?

A: Yes. The RC2010FK-075R1L meets all critical electrical parameters (5.1 Ohms ±1%, 0.75W) and package requirements (2010 form factor). Both parts operate across -55°C to 155°C and carry ROHS3 compliance. The YAGEO part includes moisture-resistant construction and maintains MSL 1 rating.

Q: Are there height differences between these parts that affect PCB assembly?

A: The RC2010FK-075R1L has a maximum seated height of 0.026" (0.65mm) compared to 0.028" (0.70mm) for both Vishay Dale variants. This 0.002" difference is within standard PCB assembly tolerances and does not affect component placement or reflow processing.

Q: Do all three parts carry the same compliance certifications?

A: CRCW20105R10FNEF and CRCW20105R10FKEF both carry AEC-Q200 automotive qualification. RC2010FK-075R1L does not list AEC-Q200 designation but carries ROHS3 compliance and MSL 1 rating equivalent to the Vishay parts. For automotive applications requiring explicit AEC-Q200 certification, the Vishay variants are specified.

Q: What packaging format is used for these parts?

A: All three parts are supplied in Tape & Reel (TR) format suitable for automated assembly processes.