RMCF2010FT4K99 Equivalent & Substitute Parts

Part Overview

The RMCF2010FT4K99 is a 4.99 kOhms ±1% 0.75W chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently active in production with 1,636 pieces available in inventory. Equivalent and substitute parts are identified when applications require alternative sourcing due to supply constraints, lead time considerations, or inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

RMCF2010FT4K99

Stackpole Electronics IncIn Stock: 1654RMCF2010FT4K99 Datasheet

Current PartRFQ

CRCW20104K99FKEF

Vishay DaleIn Stock: 5004CRCW20104K99FKEF Datasheet

DirectRFQ

AC2010FK-074K99L

YAGEOIn Stock: 3912AC2010FK-074K99L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RMCF2010FT4K99 are qualified based on strict equivalence of the following parameters:

• Resistance value: 4.99 kOhms
• Tolerance: ±1%
• Power rating: 0.75W
• Package: 2010 (5025 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

All identified substitute parts meet these criteria and are interchangeable at the functional and mechanical level. Substitution is based solely on matching these electrical and mechanical parameters without consideration of performance optimization or enhanced features.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RMCF2010FT4K99, CRCW20104K99FKEF, and AC2010FK-074K99L—are active production components with ROHS3 compliance and AEC-Q200 automotive qualification. Selection among these equivalents should be based on:

• Inventory availability and lead time requirements
• Supply chain logistics and preferred supplier relationships
• Seated height tolerance: AC2010FK-074K99L has a maximum seated height of 0.026" (0.65mm) compared to 0.028" (0.70mm) for the other two parts, which may be relevant for space-constrained applications
• Moisture resistance features: AC2010FK-074K99L is specified with moisture-resistant thick film composition

All parts meet identical electrical specifications and are mechanically interchangeable in standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can CRCW20104K99FKEF be used as a direct replacement for RMCF2010FT4K99?

A: Yes. Both parts share identical resistance (4.99 kOhms), tolerance (±1%), power rating (0.75W), package (2010), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. They are functionally and mechanically equivalent.

Q: What is the difference between AC2010FK-074K99L and the other substitutes?

A: AC2010FK-074K99L is specified with moisture-resistant thick film composition and has a maximum seated height of 0.026" (0.65mm) versus 0.028" (0.70mm) for RMCF2010FT4K99 and CRCW20104K99FKEF. All other electrical and mechanical parameters are identical.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification and are rated for the same operating temperature range (-55°C ~ 155°C), making them suitable for automotive circuit designs.

Q: Does the seated height difference affect PCB assembly compatibility?

A: The seated height difference between AC2010FK-074K99L (0.026" / 0.65mm) and the other two parts (0.028" / 0.70mm) is minimal. Both dimensions fall within standard PCB assembly tolerances for 2010 package components. Verify specific design clearance requirements for space-constrained applications.

Q: Are all parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and meet REACH requirements, making them suitable for applications with environmental compliance mandates.

Q: Which part should I select based on availability?

A: CRCW20104K99FKEF has the highest inventory (4,900 pieces), followed by AC2010FK-074K99L (3,803 pieces) and RMCF2010FT4K99 (1,636 pieces). Selection should align with supply chain requirements and lead time constraints.