RCS2012F4120CS Equivalent & Substitute Parts

Part Overview

The RCS2012F4120CS is a 412 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 characteristics. The part is ROHS3 compliant and carries unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.

Key Parameters

Parameter	Specification
Resistance Value	412 Ohms
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F4120CS are qualified based on the following criteria:

Electrical Parameters (Critical):

Resistance value: 412 Ohms
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 compliance
Moisture sensitivity level: 1 (Unlimited)
REACH unaffected status

All identified substitute parts meet these core requirements. Variations in height (seated maximum) and packaging format (Tape & Reel versus Cut Tape) do not affect electrical or functional equivalence.

Parameter Comparison

Parameter	RCS2012F4120CS (Samsung)	CRCW0805412RFKEA (Vishay Dale)	ERJ-6ENF4120V (Panasonic)	RC0805FR-07412RL (YAGEO)
Resistance	412 Ohms	412 Ohms	412 Ohms	412 Ohms
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)
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

Engineering Selection Recommendations

All four parts listed—RCS2012F4120CS, CRCW0805412RFKEA, ERJ-6ENF4120V, and RC0805FR-07412RL—are functionally equivalent for applications requiring a 412 Ohm ±1% 0.125W thick film resistor in 0805 package format.

Compliance Equivalence: All parts carry ROHS3 compliance, MSL 1 (Unlimited) rating, and REACH unaffected status. No compliance barriers exist between any of these components.

Automotive Applications: CRCW0805412RFKEA (Vishay Dale) and ERJ-6ENF4120V (Panasonic) carry AEC-Q200 automotive qualification. These parts are suitable for automotive-grade applications where this certification is required.

Standard Industrial Applications: RCS2012F4120CS (Samsung) and RC0805FR-07412RL (YAGEO) are suitable for general industrial and consumer applications without automotive qualification requirements.

Packaging Considerations: RCS2012F4120CS and CRCW0805412RFKEA are supplied in Tape & Reel (TR) format. ERJ-6ENF4120V is supplied in Cut Tape (CT) & Digi-Reel® format. RC0805FR-07412RL is supplied in Tape & Reel (TR) format. Packaging format selection depends on assembly equipment compatibility and procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can CRCW0805412RFKEA replace RCS2012F4120CS in non-automotive applications?

A: Yes. CRCW0805412RFKEA meets all electrical and mechanical specifications of RCS2012F4120CS. The AEC-Q200 automotive qualification present in CRCW0805412RFKEA does not restrict its use in standard applications. The component is electrically and mechanically equivalent.

Q: What is the significance of the height difference between substitute parts?

A: Height variations (0.020" to 0.028" seated maximum) fall within acceptable tolerances for 0805 package components and do not affect circuit performance or PCB assembly compatibility. All parts maintain the same footprint and electrical interface.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RCS2012F4120CS, CRCW0805412RFKEA, ERJ-6ENF4120V, and RC0805FR-07412RL are all ROHS3 compliant with MSL 1 (Unlimited) rating and REACH unaffected status.

Q: Which substitute part should be selected for automotive applications?

A: CRCW0805412RFKEA (Vishay Dale) and ERJ-6ENF4120V (Panasonic) carry AEC-Q200 automotive qualification. Either part is suitable for automotive-grade circuit designs.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats are packaging and delivery methods only. Electrical and mechanical specifications remain identical. Selection depends on assembly equipment and procurement workflow requirements.

Q: Are temperature coefficient and operating temperature range identical across all parts?

A: Yes. All four parts specify ±100ppm/°C temperature coefficient and -55°C to 155°C operating temperature range. Thermal performance is equivalent.

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