RCS2012F3011CS Equivalent & Substitute Parts

Part Overview

The RCS2012F3011CS is a 3.01 kOhms ±1% 0.125W (1/8W) chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This thick film resistor features anti-sulfur and moisture-resistant properties with a temperature coefficient of ±100ppm/°C and operating range of -55°C to 155°C. The part is ROHS3 compliant with MSL 1 (Unlimited) rating and is currently in active production status with 665 pieces in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct circuit board replacement capability.

Key Parameters

Parameter	Value
Resistance	3.01 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
Dimensions	0.079" L x 0.049" W (2.00mm x 1.25mm)
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F3011CS are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Substitution Criteria:

Resistance value: 3.01 kOhms
Tolerance: ±1%
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C to 155°C
Number of Terminations: 2

Secondary Compatibility Factors:

Power rating (0.125W primary; higher ratings acceptable for derating applications)
Physical dimensions (length 0.079", width 0.049")
Regulatory compliance (ROHS3, REACH status)
Moisture Sensitivity Level (MSL 1)

All identified substitute parts maintain identical electrical specifications and package dimensions. Variations in seated height and specific feature sets (automotive AEC-Q200 certification, pulse withstanding capability, anti-sulfur properties) do not affect direct substitution capability but may provide additional performance benefits for specific application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Op. Temp Range	Height Max	RoHS Status	Features
RCS2012F3011CS	Samsung Electro-Mechanics	3.01 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.026" (0.66mm)	ROHS3	Anti-Sulfur, Moisture Resistant
AC0805FR-073K01L	YAGEO	3.01 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.024" (0.60mm)	ROHS3	Automotive AEC-Q200, Moisture Resistant
CRCW08053K01FKEA	Vishay Dale	3.01 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	ROHS3	Automotive AEC-Q200
CRCW08053K01FKEAHP	Vishay Dale	3.01 kΩ	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	ROHS3	Automotive AEC-Q200, Pulse Withstanding
CRCW08053K01FKTA	Vishay Dale	3.01 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	RoHS Non-compliant	Automotive AEC-Q200
ERJ-6ENF3011V	Panasonic Electronic Components	3.01 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.028" (0.70mm)	ROHS3	Automotive AEC-Q200
RC0805FR-073K01L	YAGEO	3.01 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.024" (0.60mm)	ROHS3	Moisture Resistant
RCS08053K01FKEA	Vishay Dale	3.01 kΩ	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.020" (0.50mm)	ROHS3	Automotive AEC-Q200, Pulse Withstanding
RMCF0805FT3K01	Stackpole Electronics Inc	3.01 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.026" (0.65mm)	ROHS3	Automotive AEC-Q200
RMCS0805FT3K01	Stackpole Electronics Inc	3.01 kΩ	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.024" (0.60mm)	ROHS3	Anti-Sulfur

Engineering Selection Recommendations

Primary Substitutes (Direct Replacement - Identical Specifications):

AC0805FR-073K01L, RC0805FR-073K01L, CRCW08053K01FKEA, ERJ-6ENF3011V, RMCF0805FT3K01, and RMCS0805FT3K01 are direct electrical and mechanical equivalents to the RCS2012F3011CS. All maintain 3.01 kOhms ±1% resistance, 0.125W power rating, 0805 package, and -55°C to 155°C operating range. All primary substitutes are ROHS3 compliant with MSL 1 rating. Selection among these options depends on feature requirements and supply availability.

Higher Power Rating Alternatives (Derating Applications):

CRCW08053K01FKEAHP and RCS08053K01FKEA provide 0.5W (1/2W) power rating in the same 0805 package with identical resistance and tolerance specifications. These parts are suitable for applications requiring thermal margin or pulse withstanding capability while maintaining the same footprint and electrical characteristics.

Compliance Considerations:

CRCW08053K01FKTA is RoHS non-compliant and REACH affected; use only in applications where legacy component specifications are required. All other substitutes maintain ROHS3 compliance and REACH unaffected status matching the original part.

Feature-Based Selection:

Automotive AEC-Q200 rated substitutes: AC0805FR-073K01L, CRCW08053K01FKEA, CRCW08053K01FKEAHP, CRCW08053K01FKTA, ERJ-6ENF3011V, RCS08053K01FKEA, RMCF0805FT3K01
Anti-sulfur feature: RCS2012F3011CS (original), RMCS0805FT3K01
Pulse withstanding capability: CRCW08053K01FKEAHP, RCS08053K01FKEA

Frequently Asked Questions (FAQ)

Q: Can I substitute RCS2012F3011CS with a higher power rating part like CRCW08053K01FKEAHP?

A: Yes. CRCW08053K01FKEAHP maintains identical resistance (3.01 kOhms ±1%), tolerance, package (0805), and operating temperature range (-55°C to 155°C). The 0.5W rating provides additional thermal capacity and does not affect circuit compatibility. The part occupies the same PCB footprint and uses identical termination configuration.

Q: What is the difference between AC0805FR-073K01L and RC0805FR-073K01L?

A: Both are YAGEO 3.01 kOhms ±1% 0.125W 0805 resistors with identical electrical specifications and ROHS3 compliance. AC0805FR-073K01L includes automotive AEC-Q200 certification; RC0805FR-073K01L does not. Selection depends on application requirements for automotive qualification.

Q: Are all substitute parts available in the same tape and reel packaging?

A: Yes. All identified substitute parts are supplied in Tape & Reel (TR) packaging format, maintaining supply chain compatibility and automated assembly compatibility with the original RCS2012F3011CS.

Q: Does the seated height variation affect PCB assembly?

A: No. Seated height variations (ranging from 0.020" to 0.028") are within standard 0805 package tolerances and do not affect PCB layout, solder reflow profiles, or component placement. All parts are mechanically compatible with standard 0805 footprints.

Q: Which substitute offers the best anti-sulfur protection?

A: The original RCS2012F3011CS and RMCS0805FT3K01 both feature anti-sulfur thick film composition. RMCS0805FT3K01 is the direct substitute with this specific feature. Other substitutes provide moisture resistance but not explicit anti-sulfur protection.

Q: Can I use RMCF0805FT3K01 in a non-automotive application?

A: Yes. RMCF0805FT3K01 is AEC-Q200 automotive qualified but functions identically to non-automotive rated parts in standard industrial and consumer applications. The automotive qualification provides additional quality assurance but does not restrict use in other applications.

Q: What is MSL 1 (Unlimited) rating?

A: MSL 1 indicates Moisture Sensitivity Level 1, the lowest moisture sensitivity classification. Parts with MSL 1 have unlimited shelf life and do not require special moisture-controlled storage or handling procedures prior to soldering.

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