RMCS0805FT22R1 Equivalent & Substitute Parts

Part Overview

The RMCS0805FT22R1 is a 22.1 Ohm ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor operates across -55°C to 155°C and is ROHS3 compliant with unlimited moisture sensitivity rating. The part is currently active in production with 823 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and package compatibility are maintained across alternative manufacturers.

Key Parameters

Parameter	Value
Resistance	22.1 Ohms
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 ~ 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence in the following parameters:

Resistance value: 22.1 Ohms
Tolerance: ±1%
Package / Case: 0805 (2012 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C
Number of Terminations: 2
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts may differ in the following non-critical parameters: manufacturer, series designation, specific features (anti-sulfur, automotive AEC-Q200, pulse withstanding, moisture resistant), power rating (when equal to or greater than 0.125W), physical height, and RoHS/REACH compliance status. Parts with higher power ratings (0.5W) are included as they maintain backward compatibility with 0.125W applications.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Temp Range	Height Max (mm)	RoHS Status	Features
RMCS0805FT22R1	Stackpole Electronics Inc	22.1 Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.60	ROHS3	Anti-Sulfur
RMCF0805FT22R1	Stackpole Electronics Inc	22.1 Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.65	ROHS3	Automotive AEC-Q200
CRCW080522R1FKEA	Vishay Dale	22.1 Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.50	ROHS3	Automotive AEC-Q200
CRCW080522R1FKEAHP	Vishay Dale	22.1 Ω	±1%	0.5	0805	±100ppm/°C	-55~155°C	0.50	ROHS3	Automotive AEC-Q200, Pulse Withstanding
CRCW080522R1FKTA	Vishay Dale	22.1 Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.50	RoHS non-compliant	Automotive AEC-Q200
ERJ-6ENF22R1V	Panasonic Electronic Components	22.1 Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.70	ROHS3	Automotive AEC-Q200
RC0805FR-0722R1L	YAGEO	22.1 Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.60	ROHS3	Moisture Resistant
RC2012F22R1CS	Samsung Electro-Mechanics	22.1 Ω	±1%	0.125	0805	±100ppm/°C	-55~155°C	0.65	ROHS3	Moisture Resistant
RCS080522R1FKEA	Vishay Dale	22.1 Ω	±1%	0.5	0805	±100ppm/°C	-55~155°C	0.50	ROHS3	Automotive AEC-Q200, Pulse Withstanding

Engineering Selection Recommendations

All listed substitute parts maintain electrical and mechanical equivalence to RMCS0805FT22R1 within the specified parameters. Selection criteria are based on product status, compliance certifications, and application requirements:

ROHS3 Compliant Substitutes: RMCF0805FT22R1, CRCW080522R1FKEA, CRCW080522R1FKEAHP, ERJ-6ENF22R1V, RC0805FR-0722R1L, RC2012F22R1CS, and RCS080522R1FKEA are all ROHS3 compliant and suitable for applications requiring environmental compliance.

Automotive AEC-Q200 Rated: RMCF0805FT22R1, CRCW080522R1FKEA, CRCW080522R1FKEAHP, ERJ-6ENF22R1V, and RCS080522R1FKEA carry automotive qualification. These parts are appropriate for automotive and high-reliability applications.

Non-Compliant Alternative: CRCW080522R1FKTA is RoHS non-compliant and REACH affected. This part is suitable only for applications where regulatory compliance is not required.

Enhanced Power Rating: CRCW080522R1FKEAHP and RCS080522R1FKEA offer 0.5W power rating with pulse withstanding capability, providing additional margin for transient conditions while maintaining 0805 package compatibility.

Inventory Availability: RMCF0805FT22R1 (242,703 units), ERJ-6ENF22R1V (98,873 units), and RC0805FR-0722R1L (60,205 units) offer substantial stock levels for high-volume procurement.

Frequently Asked Questions (FAQ)

Q: Can CRCW080522R1FKEAHP (0.5W) replace RMCS0805FT22R1 (0.125W)? A: Yes. The 0.5W part is electrically and mechanically equivalent and provides additional power dissipation margin. It maintains the same 0805 package dimensions, resistance value, tolerance, and temperature range. Higher power rating does not create compatibility issues in applications designed for 0.125W.

Q: What is the difference between anti-sulfur and moisture-resistant features? A: Anti-sulfur (RMCS0805FT22R1) and moisture-resistant (RC0805FR-0722R1L, RC2012F22R1CS) are distinct protective features. Both are functionally equivalent for standard applications. Feature selection depends on specific environmental exposure requirements.

Q: Are automotive AEC-Q200 parts suitable for non-automotive applications? A: Yes. Automotive-qualified parts (RMCF0805FT22R1, CRCW080522R1FKEA, ERJ-6ENF22R1V, RCS080522R1FKEA) meet or exceed standard industrial specifications and are fully compatible with non-automotive designs.

Q: Why is CRCW080522R1FKTA listed as non-compliant? A: CRCW080522R1FKTA is RoHS non-compliant and REACH affected. It remains electrically and mechanically equivalent but is restricted in applications requiring environmental compliance certification.

Q: Do height variations affect PCB assembly compatibility? A: Height variations (0.50mm to 0.70mm maximum seated height) are within standard 0805 package tolerances and do not affect PCB assembly compatibility. All listed parts are suitable for standard pick-and-place equipment and reflow processes.

Q: Can parts with different packaging formats (Tape & Reel vs. Cut Tape) be substituted? A: Yes. RC2012F22R1CS is supplied in Cut Tape format while others use Tape & Reel. The component itself is electrically and mechanically identical; packaging format affects procurement and handling only.

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