RCS2012F240CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F240CS is a 24 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in 0805 (2012 Metric) package format. This component is classified as Active product status with anti-sulfur and moisture-resistant construction. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct circuit board replacement capability.

Key Parameters

Parameter	Specification
Resistance Value	24 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
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F240CS are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Parameters for Substitution:

Resistance value: 24 Ohms (exact match required)
Tolerance: ±1% (exact match required)
Package: 0805 (2012 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature Range: -55°C ~ 155°C (exact match required)
Terminations: 2 (exact match required)
RoHS Compliance: ROHS3 Compliant (exact match required)
MSL Rating: 1 (Unlimited) (exact match required)

Secondary Consideration:

Power Rating: Substitute parts may have equal or higher power ratings (0.125W or greater) while maintaining identical package dimensions and electrical characteristics.

All substitute parts listed maintain full compatibility with the RCS2012F240CS in terms of footprint, electrical performance, and environmental specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	Height Max	RoHS Status	MSL
RCS2012F240CS	Samsung Electro-Mechanics	24 Ohms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.66mm	ROHS3	1
AC0805FR-0724RL	YAGEO	24 Ohms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.60mm	ROHS3	1
CRCW080524R0FKEA	Vishay Dale	24 Ohms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3	1
CRCW080524R0FKEAHP	Vishay Dale	24 Ohms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	ROHS3	1
ERJ-6ENF24R0V	Panasonic Electronic Components	24 Ohms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.70mm	ROHS3	1
ESR10EZPF24R0	Rohm Semiconductor	24 Ohms	±1%	0.4W	0805	±100ppm/°C	-55°C ~ 155°C	0.65mm	ROHS3	1
RC0805FR-0724RL	YAGEO	24 Ohms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.60mm	ROHS3	1
RMCF0805FT24R0	Stackpole Electronics Inc	24 Ohms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.65mm	ROHS3	1

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and full ROHS3 compliance. Selection among equivalent parts should be based on:

Electrical Equivalence: AC0805FR-0724RL, CRCW080524R0FKEA, ERJ-6ENF24R0V, RC0805FR-0724RL, and RMCF0805FT24R0 provide direct electrical substitution with identical 0.125W power ratings and ±1% tolerance specifications.

Enhanced Power Capability: CRCW080524R0FKEAHP and ESR10EZPF24R0 offer higher power ratings (0.5W and 0.4W respectively) while maintaining identical resistance, tolerance, and package dimensions. These parts are suitable for applications requiring additional thermal margin or pulse withstanding capability.

Automotive Applications: AC0805FR-0724RL, CRCW080524R0FKEA, CRCW080524R0FKEAHP, ERJ-6ENF24R0V, ESR10EZPF24R0, and RMCF0805FT24R0 carry AEC-Q200 automotive qualification ratings, providing enhanced reliability documentation for automotive circuit applications.

Inventory Availability: ERJ-6ENF24R0V (Panasonic) and RC0805FR-0724RL (YAGEO) demonstrate highest inventory levels, supporting supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can CRCW080524R0FKEAHP (0.5W) be used as a direct replacement for RCS2012F240CS (0.125W)?

A: Yes. The CRCW080524R0FKEAHP maintains identical resistance (24 Ohms), tolerance (±1%), package (0805), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The higher power rating (0.5W vs 0.125W) does not prevent substitution; it provides additional thermal capability. Physical dimensions remain compatible with the original PCB footprint.

Q: What is the difference between AC0805FR-0724RL and RC0805FR-0724RL, both from YAGEO?

A: Both parts are manufactured by YAGEO and share identical electrical specifications (24 Ohms, ±1%, 0.125W, 0805 package). AC0805FR-0724RL carries AEC-Q200 automotive qualification, while RC0805FR-0724RL is specified as general-purpose. Selection depends on application requirements; automotive applications should use AC0805FR-0724RL.

Q: Are all substitute parts MSL 1 rated?

A: Yes. All listed substitute parts carry MSL 1 (Unlimited) moisture sensitivity rating, matching the RCS2012F240CS specification. This ensures equivalent moisture handling and storage requirements.

Q: Do substitute parts maintain the same physical footprint?

A: Yes. All substitute parts use the 0805 (2012 Metric) package with dimensions 0.079" L x 0.049" W (2.00mm x 1.25mm). Height variations (0.50mm to 0.70mm) remain within standard PCB assembly tolerances and do not affect footprint compatibility.

Q: Which substitute offers the best supply chain availability?

A: ERJ-6ENF24R0V (Panasonic Electronic Components) with 302,073 pieces in stock provides the highest inventory level. RC0805FR-0724RL (YAGEO) with 384,140 pieces also demonstrates strong availability.

Q: Can ESR10EZPF24R0 (0.4W) be used in place of RCS2012F240CS (0.125W)?

A: Yes. ESR10EZPF24R0 maintains all critical electrical parameters (24 Ohms, ±1%, ±100ppm/°C, -55°C ~ 155°C) and package specifications (0805). The 0.4W power rating exceeds the original 0.125W specification, providing additional thermal margin. This part includes pulse withstanding capability and AEC-Q200 automotive qualification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the RCS2012F240CS environmental specification.

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