RMCF0805FG2K21 Equivalent & Substitute Parts

Part Overview

The RMCF0805FG2K21 is a 2.21 kOhms ±1% 0.125W chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor is qualified to AEC-Q200 automotive standards and operates across -55°C to 155°C. The part is currently active in production with 1709 units available in cut tape packaging. Substitute parts are necessary to address packaging format requirements, supply chain availability, or specific manufacturing certifications while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	2.21 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RMCF0805FG2K21 is determined by strict equivalence across the following parameters:

Resistance value: 2.21 kOhms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Automotive qualification: AEC-Q200
RoHS compliance: ROHS3
Moisture sensitivity: MSL 1

All listed substitute parts meet these electrical and mechanical specifications. Variations in packaging format (cut tape versus tape & reel) and minor dimensional differences in seated height do not affect functional equivalence. Manufacturer differences reflect alternative qualified sources for the same component specification.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op Temp Range	AEC-Q200	Height (Max)	Packaging	Status
RMCF0805FG2K21	Stackpole Electronics Inc	2.21 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C to 155°C	Yes	0.026"	Cut Tape	Active
RMCF0805FT2K21	Stackpole Electronics Inc	2.21 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C to 155°C	Yes	0.026"	Tape & Reel	Active
CRCW08052K21FKEA	Vishay Dale	2.21 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C to 155°C	Yes	0.020"	Tape & Reel	Active
CRCW08052K21FKEB	Vishay Dale	2.21 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C to 155°C	Yes	0.020"	Tape & Reel	Discontinued
ERJ-6ENF2211V	Panasonic Electronic Components	2.21 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C to 155°C	Yes	0.028"	Tape & Reel	Active
AC0805FR-072K21L	YAGEO	2.21 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C to 155°C	Yes	0.024"	Tape & Reel	Active
CR0805-FX-2211ELF	Bourns Inc.	2.21 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C to 155°C	No	0.024"	Tape & Reel	Active
RC0805FR-072K21L	YAGEO	2.21 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C to 155°C	No	0.024"	Tape & Reel	Active

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive qualification, select from: RMCF0805FT2K21, CRCW08052K21FKEA, ERJ-6ENF2211V, or AC0805FR-072K21L. All are active production parts with full automotive certification.

RMCF0805FT2K21 provides direct manufacturer continuity with Stackpole Electronics Inc and offers the highest inventory availability (130,326 units) in tape & reel format, suitable for automated assembly processes.

CRCW08052K21FKEB is discontinued at DiGi Electronics and should not be selected for new designs despite remaining inventory.

CR0805-FX-2211ELF and RC0805FR-072K21L lack AEC-Q200 certification and are suitable only for non-automotive applications requiring moisture-resistant thick film composition.

For cut tape packaging, RMCF0805FG2K21 remains the only option among listed substitutes.

Frequently Asked Questions (FAQ)

Q: Can RMCF0805FG2K21 be replaced with RMCF0805FT2K21?

A: Yes. Both parts are identical in electrical specifications, resistance value, tolerance, power rating, and operating temperature range. The only difference is packaging format: RMCF0805FG2K21 is supplied in cut tape, while RMCF0805FT2K21 is supplied in tape & reel. Selection depends on assembly process requirements.

Q: Are all substitute parts AEC-Q200 qualified?

A: No. CR0805-FX-2211ELF and RC0805FR-072K21L do not carry AEC-Q200 automotive certification. These parts are suitable only for non-automotive applications. For automotive use, select from RMCF0805FT2K21, CRCW08052K21FKEA, ERJ-6ENF2211V, or AC0805FR-072K21L.

Q: What is the significance of the height difference between substitute parts?

A: All substitute parts maintain the 0805 (2012 Metric) package footprint and fit within standard PCB assembly tolerances. Height variations (0.020" to 0.028") do not affect electrical performance or mechanical compatibility in standard surface-mount applications.

Q: Why is CRCW08052K21FKEB listed if it is discontinued?

A: CRCW08052K21FKEB is included for reference purposes to document historical equivalence. For new designs and procurement, select active production alternatives such as CRCW08052K21FKEA.

Q: Can non-AEC-Q200 parts be used in automotive applications?

A: No. Automotive applications requiring AEC-Q200 qualification must use parts with explicit AEC-Q200 certification. CR0805-FX-2211ELF and RC0805FR-072K21L do not meet this requirement.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts carry MSL 1 rating.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message