RCS2012F2430CS Equivalent & Substitute Parts

Part Overview

The RCS2012F2430CS is a 243 Ohm ±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 and is designed for general-purpose applications requiring anti-sulfur and moisture-resistant characteristics. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component's performance envelope.

Key Parameters

Parameter	Value
Resistance	243 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)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS2012F2430CS is determined by strict equivalence across the following parameters:

Mandatory Matching Criteria:

Resistance value: 243 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 criteria. Variations in physical height (seated maximum) and additional certifications (such as AEC-Q200 automotive qualification) do not disqualify substitution but represent secondary differentiators for specific application contexts.

Parameter Comparison

Parameter	RCS2012F2430CS (Samsung)	CRCW0805243RFKEA (Vishay Dale)	ERJ-6ENF2430V (Panasonic)	RC0805FR-07243RL (YAGEO)	RMCF0805FT243R (Stackpole)
Resistance	243 Ohms	243 Ohms	243 Ohms	243 Ohms	243 Ohms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W	0.125W
Package	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
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the RCS2012F2430CS based on electrical and mechanical specifications. Selection between alternatives depends on application-specific requirements:

CRCW0805243RFKEA (Vishay Dale): Carries AEC-Q200 automotive qualification and demonstrates the lowest seated height (0.020"). Suitable for automotive applications and space-constrained PCB layouts.

ERJ-6ENF2430V (Panasonic Electronic Components): Carries AEC-Q200 automotive qualification with highest inventory availability (164,631 pcs). Suitable for high-volume automotive and industrial applications.

RC0805FR-07243RL (YAGEO): Offers moisture-resistant characteristics matching the original RCS2012F2430CS specification without automotive qualification. Suitable for general industrial and consumer applications with moderate inventory (120,535 pcs).

RMCF0805FT243R (Stackpole Electronics Inc): Carries AEC-Q200 automotive qualification with seated height matching the original component (0.026"). Suitable for automotive applications requiring dimensional consistency with existing designs.

All parts comply with ROHS3 and maintain MSL 1 (Unlimited) rating, ensuring compatibility with standard manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can CRCW0805243RFKEA replace RCS2012F2430CS in non-automotive applications?

A: Yes. The CRCW0805243RFKEA meets all electrical and mechanical specifications of the RCS2012F2430CS. AEC-Q200 certification is an additional qualification that does not restrict use in non-automotive circuits. The lower seated height (0.020" vs 0.026") may provide layout advantages in space-constrained designs.

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

A: Seated height variations (0.020" to 0.028") reflect manufacturing tolerances across different suppliers. For standard PCB assembly, these differences are within acceptable limits. Critical applications requiring precise height specifications should verify compatibility with specific PCB design constraints.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: Yes. All identified substitute parts are supplied in Tape & Reel packaging, maintaining compatibility with automated assembly equipment used for the original RCS2012F2430CS.

Q: Does the absence of AEC-Q200 certification on RC0805FR-07243RL affect its performance in general applications?

A: No. AEC-Q200 is an automotive-specific qualification standard. The RC0805FR-07243RL meets all core electrical and mechanical specifications required for general industrial and consumer applications. Selection should be based on application requirements rather than certification presence.

Q: Can substitute parts be mixed within the same production batch?

A: All substitute parts are electrically and mechanically equivalent. However, manufacturing best practices typically recommend using a single part number per design revision to maintain traceability and consistency in production documentation.

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