Equivalent & Substitute Parts for RCS2012F2551CS

Part Overview

The RCS2012F2551CS is a 2.55 kOhms ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. The part is supplied in Tape & Reel packaging with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or specific application certifications such as automotive AEC-Q200 qualification.

Key Parameters

Parameter	Value
Resistance	2.55 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F2551CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 2.55 kOhms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Package format: 0805 (2012 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: 1 (Unlimited)

All identified substitute parts meet these mandatory parameters. Differences in physical height dimensions and optional certifications (such as automotive AEC-Q200) do not disqualify substitution but indicate application-specific suitability.

Parameter Comparison

Parameter	RCS2012F2551CS (Samsung)	CRCW08052K55FKEA (Vishay Dale)	ERJ-6ENF2551V (Panasonic)	RC0805FR-072K55L (YAGEO)	RMCF0805FT2K55 (Stackpole)
Resistance	2.55 kOhms	2.55 kOhms	2.55 kOhms	2.55 kOhms	2.55 kOhms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W	0.125W
Package / Case	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±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	-55°C ~ 155°C
Height - Seated (Max)	0.026" (0.66mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)	0.026" (0.65mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts maintain full electrical and mechanical equivalence to the RCS2012F2551CS. Selection among these alternatives is based on the following considerations:

General Industrial Applications: The RCS2012F2551CS (Samsung), RC0805FR-072K55L (YAGEO), and RMCF0805FT2K55 (Stackpole) are suitable for standard industrial applications. These parts feature moisture-resistant thick film construction and unlimited MSL rating.

Automotive Applications: The CRCW08052K55FKEA (Vishay Dale), ERJ-6ENF2551V (Panasonic), and RMCF0805FT2K55 (Stackpole) carry automotive AEC-Q200 certification. These parts are qualified for automotive-grade applications requiring enhanced reliability standards.

Physical Height Constraints: The CRCW08052K55FKEA exhibits the lowest seated height at 0.020" (0.50mm), suitable for space-constrained PCB designs. The ERJ-6ENF2551V has the highest seated height at 0.028" (0.70mm). Height differences must be evaluated against specific PCB layout requirements.

Inventory Availability: All parts maintain active product status with current stock availability. Selection may be influenced by supplier inventory levels and lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can CRCW08052K55FKEA replace RCS2012F2551CS in non-automotive applications?

A: Yes. The CRCW08052K55FKEA meets all mandatory electrical and mechanical parameters for the RCS2012F2551CS. The automotive AEC-Q200 certification is an additional qualification that does not restrict use in general industrial applications. The lower seated height (0.020" vs 0.026") must be verified against PCB layout constraints.

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

A: Physical height variations range from 0.020" (0.50mm) to 0.028" (0.70mm). These differences affect PCB clearance, component stacking, and conformal coating processes. Design layouts with tight vertical spacing must account for the specific height of the selected substitute.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts, including RCS2012F2551CS, CRCW08052K55FKEA, ERJ-6ENF2551V, RC0805FR-072K55L, and RMCF0805FT2K55, are ROHS3 compliant and REACH unaffected.

Q: Which substitute part has the highest inventory availability?

A: RC0805FR-072K55L (YAGEO) maintains the highest inventory level at 214,004 pieces. ERJ-6ENF2551V (Panasonic) has 149,053 pieces available. CRCW08052K55FKEA (Vishay Dale) has 27,996 pieces, and RMCF0805FT2K55 (Stackpole) has 15,347 pieces.

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

A: Yes. All substitute parts are electrically and mechanically equivalent within the specified parameters. However, physical height variations must be considered if multiple parts are used on the same assembly in applications with height-sensitive constraints.

Q: What is the moisture sensitivity level for all parts?

A: All parts, including the main part and all substitutes, have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.

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