RCS2012F1580CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F1580CS is a 158 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in 0805 (2012 Metric) surface mount package. 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	158 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)
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F1580CS is determined by strict alignment of the following parameters:

Critical Matching Parameters:

Resistance value: 158 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 physical height and additional certifications (such as AEC-Q200 automotive qualification) do not disqualify substitution, as these represent enhanced or alternative feature sets compatible with the original application requirements.

Parameter Comparison

Parameter	RCS2012F1580CS (Samsung)	CRCW0805158RFKEA (Vishay Dale)	ERJ-6ENF1580V (Panasonic)	RC0805FR-07158RL (YAGEO)
Resistance	158 Ohms	158 Ohms	158 Ohms	158 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 ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Size / Dimension	0.079" L x 0.049" W (2.00mm x 1.25mm)	0.079" L x 0.049" W (2.00mm x 1.25mm)	0.079" L x 0.049" W (2.00mm x 1.25mm)	0.079" L x 0.049" W (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)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts are qualified for direct replacement of the RCS2012F1580CS based on electrical parameter equivalence and compliance alignment.

CRCW0805158RFKEA (Vishay Dale): This substitute carries AEC-Q200 automotive qualification, indicating enhanced reliability screening for automotive applications. The seated height of 0.020" (0.50mm) is the lowest among all options, suitable for space-constrained PCB layouts. ROHS3 compliance and MSL 1 rating match the original specification.

ERJ-6ENF1580V (Panasonic Electronic Components): This substitute also carries AEC-Q200 automotive qualification. The seated height of 0.028" (0.70mm) is the highest among options. ROHS3 compliance and MSL 1 rating are equivalent to the original part.

RC0805FR-07158RL (YAGEO): This substitute features moisture resistant construction matching the original RCS2012F1580CS specification. The seated height of 0.024" (0.60mm) provides a mid-range profile. ROHS3 compliance and MSL 1 rating are maintained.

All parts are supplied in Tape & Reel (TR) packaging and maintain Active product status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can CRCW0805158RFKEA replace RCS2012F1580CS in non-automotive applications?

A: Yes. The AEC-Q200 automotive qualification of CRCW0805158RFKEA represents additional screening and reliability assurance. This part meets all electrical and mechanical specifications of the RCS2012F1580CS and is suitable for general industrial and consumer applications.

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

A: The seated height variations (0.020" to 0.028") reflect manufacturing tolerances and design differences between manufacturers. All heights remain within acceptable limits for standard 0805 package PCB assembly. Height selection depends on specific PCB clearance requirements and solder reflow profile compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. CRCW0805158RFKEA, ERJ-6ENF1580V, and RC0805FR-07158RL are all ROHS3 compliant, matching the original RCS2012F1580CS specification.

Q: What does MSL 1 (Unlimited) mean for these resistors?

A: MSL 1 (Unlimited) indicates that these components have unlimited shelf life and do not require special moisture-controlled storage or handling. All four parts share this classification.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All substitute parts share identical electrical specifications (158 Ohms ±1%, 0.125W), identical package dimensions (0805 / 2012 Metric), and identical operating temperature range (-55°C ~ 155°C). PCB footprints and solder pad layouts are identical. Height variations are within standard assembly tolerances.

Q: Which substitute offers the best availability?

A: CRCW0805158RFKEA (Vishay Dale) shows the highest inventory level at 20,936 pieces. ERJ-6ENF1580V (Panasonic) has 14,452 pieces in stock. RC0805FR-07158RL (YAGEO) has 2,401 pieces available.

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