RC1005F243CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F243CS is a 24 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0402 (1005 Metric) package format. This surface mount device (SMD) is rated at 0.063W (1/16W) power dissipation with moisture resistant characteristics and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to support component sourcing flexibility and supply chain continuity.

Key Parameters

Parameter	Specification
Resistance Value	24 kOhms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Dimensions	0.039" L x 0.020" W (1.00mm x 0.50mm)
Height - Seated (Max)	0.016" (0.40mm)
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RC1005F243CS are classified into three categories based on electrical and mechanical compatibility:

Direct Substitutes maintain identical electrical specifications (24 kOhms, ±1%, 0.063W, ±100ppm/°C) and mechanical dimensions (0402 package, 1.00mm x 0.50mm). These parts are interchangeable without circuit redesign and include CR0402-FX-2402GLF (Bourns Inc.), CRG0402F24K (TE Connectivity), and RC0402FR-0724KL (YAGEO).

Upgrade Substitute provides enhanced power rating (0.1W vs. 0.063W) while maintaining all other electrical parameters and package dimensions. ERJ-2RKF2402X (Panasonic) includes automotive AEC-Q200 qualification, suitable for applications requiring higher thermal margin or automotive-grade reliability.

Similar Substitutes match all critical electrical parameters and package dimensions but include additional certifications or feature enhancements. AC0402FR-0724KL (YAGEO), CRCW040224K0FKED (Vishay Dale), and RMCF0402FT24K0 (Stackpole Electronics) all carry AEC-Q200 automotive qualification, making them suitable for automotive and high-reliability applications.

Substitution eligibility is determined by matching: resistance value (24 kOhms), tolerance (±1%), package format (0402), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and composition (thick film).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Dimensions (mm)	Height Max (mm)	RoHS	MSL	Features
RC1005F243CS	Samsung Electro-Mechanics	24 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	1.00 x 0.50	0.40	ROHS3	1	Moisture Resistant
CR0402-FX-2402GLF	Bourns Inc.	24 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	1.00 x 0.50	0.40	ROHS3	1	—
CRG0402F24K	TE Connectivity	24 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	1.00 x 0.50	0.40	ROHS3	1	—
RC0402FR-0724KL	YAGEO	24 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	1.00 x 0.50	0.40	ROHS3	1	Moisture Resistant
ERJ-2RKF2402X	Panasonic Electronic Components	24 kΩ	±1%	0.1	0402	±100ppm/°C	-55 to 155°C	1.00 x 0.50	0.40	ROHS3	1	Automotive AEC-Q200
AC0402FR-0724KL	YAGEO	24 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	1.00 x 0.50	0.037	ROHS3	1	Automotive AEC-Q200, Moisture Resistant
CRCW040224K0FKED	Vishay Dale	24 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	1.00 x 0.50	0.40	ROHS3	1	Automotive AEC-Q200
RMCF0402FT24K0	Stackpole Electronics Inc	24 kΩ	±1%	0.063	0402	±100ppm/°C	-55 to 155°C	1.00 x 0.50	0.40	ROHS3	1	Automotive AEC-Q200

Engineering Selection Recommendations

For Direct Replacement: CR0402-FX-2402GLF, CRG0402F24K, and RC0402FR-0724KL provide electrical and mechanical equivalence to RC1005F243CS. All three maintain identical resistance, tolerance, power rating, package dimensions, and temperature specifications. Selection among these direct substitutes is based on availability and supply chain considerations. RC0402FR-0724KL includes moisture resistant features matching the original part specification.

For Automotive and High-Reliability Applications: ERJ-2RKF2402X, AC0402FR-0724KL, CRCW040224K0FKED, and RMCF0402FT24K0 all carry AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability and traceability. ERJ-2RKF2402X provides the additional benefit of 0.1W power rating, offering enhanced thermal margin in power-dissipation-sensitive circuits.

Compliance Considerations: All substitute parts maintain ROHS3 compliance, MSL 1 (unlimited moisture sensitivity), and REACH unaffected status, ensuring regulatory compatibility with the original RC1005F243CS specification.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-2402GLF be used as a direct replacement for RC1005F243CS?

A: Yes. CR0402-FX-2402GLF matches all critical electrical parameters (24 kOhms, ±1%, 0.063W, ±100ppm/°C) and mechanical dimensions (0402 package, 1.00mm x 0.50mm). Both parts are ROHS3 compliant with MSL 1 rating. The primary difference is that CR0402-FX-2402GLF does not specify moisture resistant features, whereas RC1005F243CS does. For applications where moisture resistance is not a circuit requirement, this substitution is valid.

Q: What is the difference between the direct substitutes and the upgrade substitute?

A: Direct substitutes (CR0402-FX-2402GLF, CRG0402F24K, RC0402FR-0724KL) maintain identical 0.063W power rating. The upgrade substitute ERJ-2RKF2402X provides 0.1W power rating while maintaining all other electrical specifications and package dimensions. The higher power rating allows greater current handling and thermal dissipation capability, suitable for circuits with higher power requirements or thermal constraints.

Q: Are AEC-Q200 qualified parts (AC0402FR-0724KL, CRCW040224K0FKED, RMCF0402FT24K0, ERJ-2RKF2402X) interchangeable with the non-automotive RC1005F243CS?

A: Yes. AEC-Q200 qualification represents an additional quality and reliability standard applied to automotive applications. These parts meet or exceed the electrical and mechanical specifications of RC1005F243CS and are fully compatible. AEC-Q200 qualified parts can be used in non-automotive applications without performance degradation.

Q: Does package height variation affect substitution compatibility?

A: Package height differences are minimal across all listed parts (0.40mm maximum for most, 0.37mm for AC0402FR-0724KL). These variations fall within standard PCB assembly tolerances and do not affect electrical performance or mechanical fit in standard 0402 footprints. Height differences are not a substitution barrier for typical surface mount assembly processes.

Q: What packaging formats are available for these substitute parts?

A: Substitute parts are supplied in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® formats. RC1005F243CS is supplied in Tape & Reel. CR0402-FX-2402GLF, CRG0402F24K, and ERJ-2RKF2402X are supplied in Tape & Reel. RC0402FR-0724KL, CRCW040224K0FKED, and RMCF0402FT24K0 are supplied in Cut Tape & Digi-Reel® format. Packaging format does not affect electrical or mechanical compatibility; selection is based on procurement and assembly process requirements.

Q: Can moisture resistant variants be substituted with non-moisture resistant variants?

A: RC1005F243CS and RC0402FR-0724KL both specify moisture resistant features. CR0402-FX-2402GLF and CRG0402F24K do not specify this feature. For applications where moisture resistance is a design requirement, use RC0402FR-0724KL or moisture-resistant AEC-Q200 variants (AC0402FR-0724KL). For applications without moisture resistance requirements, all listed substitutes are compatible.

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