RCS2012F3093CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F3093CS is a 309 kOhms ±1% 0.125W 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 characteristics. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements, enabling direct replacement in circuit applications without design modification.

Key Parameters

Parameter	Specification
Resistance Value	309 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package Type	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F3093CS are qualified based on the following criteria:

Electrical Parameters (Critical):

Resistance value: 309 kOhms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C

Mechanical Parameters (Critical):

Package designation: 0805 (2012 Metric)
Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
Number of terminations: 2

Compliance Parameters (Required):

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected status
ECCN: EAR99

All identified substitute parts meet these criteria. Variations in maximum seated height and specific feature sets (anti-sulfur vs. automotive AEC-Q200 certification) do not affect functional interchangeability within the specified electrical and mechanical constraints.

Parameter Comparison

Parameter	RCS2012F3093CS (Samsung)	CRCW0805309KFKEA (Vishay Dale)	ERJ-6ENF3093V (Panasonic)	RC0805FR-07309KL (YAGEO)
Resistance	309 kOhms	309 kOhms	309 kOhms	309 kOhms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W
Package	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Dimensions (L x W)	0.079" x 0.049" (2.00mm x 1.25mm)	0.079" x 0.049" (2.00mm x 1.25mm)	0.079" x 0.049" (2.00mm x 1.25mm)	0.079" x 0.049" (2.00mm x 1.25mm)
Height - Seated (Max)	0.026" (0.66mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)
Terminations	2	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99	EAR99

Engineering Selection Recommendations

All four components listed—RCS2012F3093CS, CRCW0805309KFKEA, ERJ-6ENF3093V, and RC0805FR-07309KL—are functionally equivalent for direct substitution based on electrical and mechanical specifications. Selection among these parts should be based on:

Product Availability: RC0805FR-07309KL (YAGEO) has the highest inventory level at 83,932 pieces. ERJ-6ENF3093V (Panasonic) has 49,885 pieces available. CRCW0805309KFKEA (Vishay Dale) has 12,370 pieces. RCS2012F3093CS (Samsung) has 834 pieces in stock.

Compliance Certifications: CRCW0805309KFKEA and ERJ-6ENF3093V carry Automotive AEC-Q200 certification, suitable for automotive-grade applications. RCS2012F3093CS and RC0805FR-07309KL are specified with anti-sulfur and moisture-resistant features respectively, suitable for general industrial applications.

Physical Constraints: All parts meet 0805 package dimensions. Seated height variations (0.020" to 0.028") are within typical PCB assembly tolerances and do not restrict interchangeability in standard surface-mount applications.

Regulatory Compliance: All parts are ROHS3 compliant, REACH unaffected, and classified as EAR99, meeting current regulatory requirements for commercial and industrial electronics.

Frequently Asked Questions (FAQ)

Q: Can CRCW0805309KFKEA replace RCS2012F3093CS in non-automotive applications?

A: Yes. Both components share identical electrical specifications (309 kOhms ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C) and mechanical dimensions (0805 package, 2.00mm x 1.25mm). The AEC-Q200 automotive certification on CRCW0805309KFKEA does not restrict its use in general applications.

Q: Are there height restrictions when substituting these resistors?

A: Seated height varies between 0.020" (0.50mm) and 0.028" (0.70mm) across the four parts. These variations fall within standard PCB assembly clearances. Verify clearance requirements for your specific PCB layout if height-constrained applications are involved.

Q: Do all substitute parts have the same moisture sensitivity rating?

A: Yes. All four components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Which substitute part has the best availability?

A: RC0805FR-07309KL (YAGEO) offers the highest inventory at 83,932 pieces, followed by ERJ-6ENF3093V (Panasonic) at 49,885 pieces.

Q: Are there feature differences between the substitute parts?

A: RCS2012F3093CS includes anti-sulfur characteristics. CRCW0805309KFKEA and ERJ-6ENF3093V carry Automotive AEC-Q200 certification. RC0805FR-07309KL is specified as moisture resistant. These feature distinctions do not affect electrical or mechanical interchangeability.

Q: Can these parts be used interchangeably in tape and reel packaging?

A: Yes. All four components are supplied in Tape & Reel (TR) packaging format, maintaining compatibility with automated assembly equipment and standard component handling processes.

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