RCS2012F2212CS Equivalent & Substitute Parts

Part Overview

The RCS2012F2212CS is a 22.1 kOhms ±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 properties. The part is ROHS3 compliant and suitable for general industrial applications requiring precision resistive elements with stable temperature characteristics across -55°C to 155°C operating range.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package size, termination count, physical dimensions) while maintaining functional interchangeability in circuit designs.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F2212CS are qualified based on the following criteria:

Electrical Equivalence: All substitute parts must match the primary electrical specifications: 22.1 kOhms resistance value, ±1% tolerance, and 0.125W (1/8W) power rating. These parameters ensure direct functional replacement in circuit applications without performance degradation.

Mechanical Compatibility: All substitute parts must use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) and two terminations. Physical dimensions and height variations within the specified range do not affect PCB assembly compatibility.

Environmental Specifications: All substitute parts maintain the same operating temperature range (-55°C ~ 155°C) and temperature coefficient (±100ppm/°C), ensuring thermal stability equivalent to the main part.

Regulatory Compliance: Substitute parts are grouped by ROHS3 compliance status and REACH classification. Parts with identical compliance profiles are direct substitutes without regulatory restrictions.

Manufacturing Features: Substitute parts may include additional certifications (AEC-Q200 automotive qualification) or enhanced features (pulse withstanding capability) that provide equal or superior performance characteristics while maintaining base electrical and mechanical specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	Height Max	RoHS Status	Features
RCS2012F2212CS	Samsung Electro-Mechanics	22.1 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.66mm	ROHS3 Compliant	Anti-Sulfur, Moisture Resistant
AC0805FR-0722K1L	YAGEO	22.1 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.60mm	ROHS3 Compliant	Automotive AEC-Q200, Moisture Resistant
CRCW080522K1FKEA	Vishay Dale	22.1 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3 Compliant	Automotive AEC-Q200
CRCW080522K1FKEAHP	Vishay Dale	22.1 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3 Compliant	Automotive AEC-Q200, Pulse Withstanding
CRCW080522K1FKTA	Vishay Dale	22.1 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	RoHS non-compliant	Automotive AEC-Q200
ERJ-6ENF2212V	Panasonic Electronic Components	22.1 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.70mm	ROHS3 Compliant	Automotive AEC-Q200
RC0805FR-0722K1L	YAGEO	22.1 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.60mm	ROHS3 Compliant	Moisture Resistant
RCS080522K1FKEA	Vishay Dale	22.1 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3 Compliant	Automotive AEC-Q200, Pulse Withstanding
RMCF0805FT22K1	Stackpole Electronics Inc	22.1 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.65mm	ROHS3 Compliant	Automotive AEC-Q200

Engineering Selection Recommendations

Direct Equivalents (ROHS3 Compliant, 0.125W Rating):

Parts AC0805FR-0722K1L, CRCW080522K1FKEA, ERJ-6ENF2212V, RC0805FR-0722K1L, and RMCF0805FT22K1 are direct functional equivalents to RCS2012F2212CS. All maintain identical electrical specifications (22.1 kOhms ±1%, 0.125W) and operating parameters. These parts are suitable for one-to-one replacement in applications where the original part is unavailable. ROHS3 compliance is maintained across all direct equivalents.

Higher Power Rating Alternatives (0.5W Rating):

Parts CRCW080522K1FKEAHP and RCS080522K1FKEA provide 0.5W (1/2W) power rating in the same 0805 package. These parts are suitable for applications requiring increased power dissipation capability while maintaining identical resistance and tolerance specifications. Selection of higher power-rated parts does not negatively impact circuit performance in applications designed for 0.125W components.

Compliance Considerations:

CRCW080522K1FKTA is RoHS non-compliant and REACH Affected. This part is not recommended for new designs or applications subject to RoHS3 regulatory requirements. Use only in legacy system maintenance where original compliance status is not a design constraint.

Automotive Applications:

Parts with AEC-Q200 certification (AC0805FR-0722K1L, CRCW080522K1FKEA, CRCW080522K1FKEAHP, CRCW080522K1FKTA, ERJ-6ENF2212V, RCS080522K1FKEA, RMCF0805FT22K1) are qualified for automotive use. Selection of AEC-Q200 certified parts provides additional reliability assurance for automotive and harsh environment applications.

Frequently Asked Questions (FAQ)

Q: Can CRCW080522K1FKEAHP (0.5W) be used as a direct replacement for RCS2012F2212CS (0.125W)?

A: Yes. The 0.5W part is electrically and mechanically compatible. The higher power rating provides additional thermal margin and does not degrade performance in circuits designed for 0.125W components. Physical dimensions remain within 0805 package specifications.

Q: What is the difference between AC0805FR-0722K1L and RC0805FR-0722K1L?

A: Both are YAGEO 22.1 kOhms ±1% 0.125W 0805 resistors with ROHS3 compliance. AC0805FR-0722K1L includes Automotive AEC-Q200 certification; RC0805FR-0722K1L does not. Selection depends on application requirements for automotive qualification.

Q: Is CRCW080522K1FKTA suitable for new product designs?

A: No. CRCW080522K1FKTA is RoHS non-compliant and REACH Affected. This part is restricted for new designs subject to RoHS3 regulatory requirements. Use CRCW080522K1FKEA (ROHS3 compliant equivalent) for new applications.

Q: Do all substitute parts fit the same PCB footprint as RCS2012F2212CS?

A: Yes. All substitute parts use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Height variations (0.50mm to 0.70mm) do not affect PCB assembly compatibility.

Q: Which substitute part has the highest inventory availability?

A: RC0805FR-0722K1L (YAGEO) has 321,859 pieces in stock. ERJ-6ENF2212V (Panasonic) has 195,207 pieces. Both provide excellent supply chain availability for high-volume applications.

Q: Are all substitute parts rated for -55°C to 155°C operation?

A: Yes. All substitute parts maintain identical operating temperature range (-55°C ~ 155°C) and temperature coefficient (±100ppm/°C) as the main part RCS2012F2212CS.

Q: What is the difference between parts with "Pulse Withstanding" feature?

A: CRCW080522K1FKEAHP and RCS080522K1FKEA include pulse withstanding capability, providing enhanced performance under transient overvoltage conditions. This feature is beneficial for applications with voltage spikes or pulse loading but is not required for standard DC circuit operation.

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