RCS2012F4220CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F4220CS is a 422 Ohm ±1% 0.125W (1/8W) thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant construction. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit applications without design modification.

Key Parameters

Parameter	Value
Resistance	422 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F4220CS is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

Resistance value: 422 Ohms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS3 compliance
MSL rating: 1 (Unlimited)

All identified substitute parts meet these electrical and mechanical specifications. Variations in features (such as automotive AEC-Q200 qualification or anti-sulfur treatment) represent enhanced capabilities that do not prevent substitution. Packaging format differences (Tape & Reel versus Cut Tape) reflect supply chain options and do not affect electrical compatibility.

Parameter Comparison

Parameter	RCS2012F4220CS (Samsung)	CRCW0805422RFKEA (Vishay Dale)	ERJ-6ENF4220V (Panasonic)	RC0805FR-07422RL (YAGEO)	RMCF0805FT422R (Stackpole)
Resistance	422 Ohms	422 Ohms	422 Ohms	422 Ohms	422 Ohms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W	0.125W
Package	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Height - Seated (Max)	0.026" (0.66mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)	0.026" (0.65mm)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the original RCS2012F4220CS component.

CRCW0805422RFKEA (Vishay Dale): Automotive AEC-Q200 qualified. Lowest seated height at 0.020" (0.50mm). Suitable for applications requiring automotive-grade reliability.

ERJ-6ENF4220V (Panasonic Electronic Components): Automotive AEC-Q200 qualified. Highest seated height at 0.028" (0.70mm). Largest available inventory at 73,266 pieces. Suitable for automotive applications with extended supply availability.

RC0805FR-07422RL (YAGEO): Moisture-resistant construction matching original anti-sulfur feature set. Cut Tape and Digi-Reel packaging option. Seated height 0.024" (0.60mm). Largest inventory at 122,854 pieces. Suitable for general industrial applications with maximum supply continuity.

RMCF0805FT422R (Stackpole Electronics Inc): Automotive AEC-Q200 qualified. Seated height 0.026" (0.65mm), matching original component height. Suitable for automotive applications requiring height-matched replacement.

Frequently Asked Questions (FAQ)

Q: Can CRCW0805422RFKEA replace RCS2012F4220CS in non-automotive applications?

A: Yes. The automotive AEC-Q200 qualification represents enhanced testing and reliability screening. All electrical and mechanical parameters match the original component. AEC-Q200 certification does not restrict use in non-automotive circuits.

Q: What is the significance of seated height differences among substitute parts?

A: Seated height variations (0.020" to 0.028") reflect manufacturing tolerances within the 0805 package specification. All values remain within standard 0805 (2012 Metric) package limits. Height differences do not affect electrical performance or PCB assembly compatibility for standard reflow processes.

Q: Are all substitute parts available in Tape & Reel packaging?

A: RC0805FR-07422RL (YAGEO) is supplied in Cut Tape and Digi-Reel format. All other substitutes are supplied in Tape & Reel (TR) packaging. Packaging format does not affect component electrical or mechanical specifications.

Q: Do the anti-sulfur and moisture-resistant features of the original RCS2012F4220CS affect substitution?

A: The original component features anti-sulfur and moisture-resistant construction. RC0805FR-07422RL (YAGEO) includes moisture-resistant features. CRCW0805422RFKEA, ERJ-6ENF4220V, and RMCF0805FT422R do not explicitly list anti-sulfur treatment but maintain MSL 1 (Unlimited) rating, indicating moisture resistance. All substitutes are electrically and mechanically equivalent.

Q: Which substitute part offers the best supply continuity?

A: RC0805FR-07422RL (YAGEO) maintains the largest inventory at 122,854 pieces. ERJ-6ENF4220V (Panasonic) provides 73,266 pieces. Both ensure extended supply availability for production requirements.

Q: Are all substitute parts REACH compliant?

A: Yes. All identified substitute parts maintain REACH Unaffected status, matching the original RCS2012F4220CS compliance classification.

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