RMCF2512FT6K49 Equivalent & Substitute Parts

Part Overview

The RMCF2512FT6K49 is a 6.49 kOhms ±1% 1W chip resistor in 2512 (6432 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 674 pieces available in stock. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility for circuit designs requiring this specific resistance value and power rating.

Substiute Parts

RMCF2512FT6K49

Stackpole Electronics IncIn Stock: 716RMCF2512FT6K49 Datasheet

Current PartRFQ

CRCW25126K49FKEG

Vishay DaleIn Stock: 12262CRCW25126K49FKEG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RMCF2512FT6K49 are qualified based on the following critical parameters that must remain constant:

• Resistance value: 6.49 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package type: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant

The CRCW25126K49FKEG from Vishay Dale meets all these electrical and mechanical requirements, making it a direct functional equivalent. Both parts share identical resistance, tolerance, power rating, package dimensions, and automotive certifications. Packaging format differences (Tape & Reel versus Cut Tape & Digi-Reel) do not affect electrical performance or circuit compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the RMCF2512FT6K49 and CRCW25126K49FKEG are active production parts with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts should be based on:

• Availability and lead time requirements
• Packaging format preference (Tape & Reel versus Cut Tape & Digi-Reel)
• Supplier inventory levels and pricing
• PCB assembly process compatibility with the selected packaging format

The minor dimensional variation in width (0.126" versus 0.124") does not affect circuit performance or PCB layout compatibility for standard 2512 footprints.

Frequently Asked Questions (FAQ)

Q: Can CRCW25126K49FKEG be used as a direct replacement for RMCF2512FT6K49?

A: Yes. Both parts have identical electrical specifications (6.49 kOhms ±1% 1W), the same 2512 package footprint, matching temperature coefficients, and equivalent automotive AEC-Q200 certification. They are electrically and mechanically interchangeable.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel and Cut Tape & Digi-Reel are packaging and delivery formats that do not affect the electrical or mechanical properties of the resistor. The choice depends on assembly equipment compatibility and inventory management preferences.

Q: Are the dimensional differences between these parts significant?

A: The width difference (0.126" versus 0.124") is within standard PCB footprint tolerances for 2512 packages. Both parts have identical length (0.248") and height (0.028"), ensuring compatibility with standard 2512 land patterns.

Q: Do both parts meet automotive standards?

A: Yes. Both RMCF2512FT6K49 and CRCW25126K49FKEG are AEC-Q200 qualified and ROHS3 compliant, meeting automotive industry requirements.

Q: What is the moisture sensitivity level, and why does it matter?

A: Both parts have MSL 1 (Unlimited), indicating they can be stored indefinitely without moisture absorption concerns. This simplifies inventory management and reduces handling restrictions.