RC2012F243CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F243CS is a 24 kOhms ±1% 0.125W (1/8W) chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 735 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements such as automotive qualification or enhanced pulse withstanding capabilities.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the RC2012F243CS are classified into two categories based on electrical and mechanical compatibility:

Direct Substitutes (Identical Electrical & Mechanical Specifications): Parts meeting all key parameters: 24 kOhms resistance, ±1% tolerance, 0.125W power rating, 0805 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, ROHS3 compliance, and MSL 1 rating. These parts differ only in manufacturer, series designation, and minor physical dimensions (height variation within 0.024" to 0.026" range). Direct substitutes include CR0805-FX-2402ELF (Bourns), CRG0805F24K (TE Connectivity), ERJ-6ENF2402V (Panasonic), KTR10EZPF2402 (Rohm), RC0805FR-0724KL (YAGEO), and RMCF0805FT24K0 (Stackpole).

Similar Substitutes (Enhanced Features or Different Packaging): Parts meeting core electrical specifications but offering additional certifications or modified power ratings. AC0805FR-0724KL (YAGEO) adds automotive AEC-Q200 qualification with moisture resistance in Cut Tape packaging. CRCW080524K0FKEA (Vishay Dale) provides AEC-Q200 automotive rating at 0.125W. CRCW080524K0FKEAHP and RCS080524K0FKEA (Vishay Dale) increase power rating to 0.5W (1/2W) with pulse withstanding capability and AEC-Q200 qualification, suitable for applications requiring higher transient energy absorption.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp (°C)	Height Max (mm)	Features	RoHS	MSL
RC2012F243CS	Samsung Electro-Mechanics	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.65	Moisture Resistant	ROHS3	1
CR0805-FX-2402ELF	Bourns Inc.	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.60	Moisture Resistant	ROHS3	1
CRG0805F24K	TE Connectivity Passive Product	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.65	—	ROHS3	1
ERJ-6ENF2402V	Panasonic Electronic Components	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.70	Automotive AEC-Q200	ROHS3	1
KTR10EZPF2402	Rohm Semiconductor	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.65	Automotive AEC-Q200, High Voltage	ROHS3	1
RC0805FR-0724KL	YAGEO	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.60	Moisture Resistant	ROHS3	1
RMCF0805FT24K0	Stackpole Electronics Inc	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.65	Automotive AEC-Q200	ROHS3	1
AC0805FR-0724KL	YAGEO	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.60	Automotive AEC-Q200, Moisture Resistant	ROHS3	1
CRCW080524K0FKEA	Vishay Dale	24k	±1%	0.125	0805	±100ppm/°C	-55~155	0.50	Automotive AEC-Q200	ROHS3	1
CRCW080524K0FKEAHP	Vishay Dale	24k	±1%	0.5	0805	±100ppm/°C	-55~155	0.50	Automotive AEC-Q200, Pulse Withstanding	ROHS3	1
RCS080524K0FKEA	Vishay Dale	24k	±1%	0.5	0805	±100ppm/°C	-55~155	0.50	Automotive AEC-Q200, Pulse Withstanding	ROHS3	1

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): CR0805-FX-2402ELF, CRG0805F24K, RC0805FR-0724KL, and RMCF0805FT24K0 are suitable direct replacements. All maintain 24 kOhms ±1%, 0.125W power rating, 0805 package, and ROHS3 compliance. Selection among these parts depends on procurement availability and supply chain preferences. CR0805-FX-2402ELF (Bourns) and RC0805FR-0724KL (YAGEO) offer the lowest seated height at 0.60mm, beneficial for space-constrained layouts.

For Automotive Applications: ERJ-6ENF2402V (Panasonic), KTR10EZPF2402 (Rohm), RMCF0805FT24K0 (Stackpole), AC0805FR-0724KL (YAGEO), and CRCW080524K0FKEA (Vishay Dale) carry AEC-Q200 automotive qualification. These parts are suitable for automotive-grade circuit designs requiring supplier qualification documentation. KTR10EZPF2402 additionally specifies high voltage capability.

For Enhanced Pulse Withstanding: CRCW080524K0FKEAHP and RCS080524K0FKEA (Vishay Dale) increase power rating to 0.5W with pulse withstanding features and AEC-Q200 qualification. These parts are appropriate for applications experiencing transient voltage spikes or pulse loading conditions. Note the increased power rating requires circuit design verification to ensure the application does not exceed 0.125W nominal dissipation if the original design assumes this lower rating.

Packaging Considerations: AC0805FR-0724KL is supplied in Cut Tape (CT) & Digi-Reel® packaging, differing from the standard Tape & Reel (TR) format of other substitutes. This packaging option is suitable for lower-volume or manual assembly operations.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-0724KL directly replace RC2012F243CS? A: Yes. Both parts share identical electrical specifications: 24 kOhms ±1%, 0.125W, 0805 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, ROHS3 compliance, and MSL 1 rating. RC0805FR-0724KL is manufactured by YAGEO and offers slightly lower seated height (0.60mm vs. 0.65mm), making it mechanically compatible.

Q: What is the difference between direct substitutes and similar substitutes? A: Direct substitutes maintain identical electrical and mechanical specifications, differing only in manufacturer and series designation. Similar substitutes offer enhanced features (such as automotive AEC-Q200 qualification) or modified power ratings (0.5W instead of 0.125W). Similar substitutes require circuit design review to confirm compatibility with application requirements.

Q: Are automotive-qualified parts (AEC-Q200) backward compatible with non-automotive designs? A: Yes. Automotive-qualified parts meet or exceed the electrical and environmental specifications of standard industrial-grade parts. AEC-Q200 parts can be used in non-automotive applications without functional degradation. However, procurement cost may be higher due to additional qualification testing and documentation.

Q: Can CRCW080524K0FKEAHP (0.5W) replace RC2012F243CS (0.125W)? A: Electrically, yes—both are 24 kOhms ±1% with identical temperature coefficients and operating ranges. However, the higher power rating (0.5W vs. 0.125W) indicates different thermal design. Use CRCW080524K0FKEAHP only if the application requires pulse withstanding capability or higher transient energy absorption. Standard circuit designs assuming 0.125W dissipation do not require this upgrade.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity? A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. Both the main part (RC2012F243CS) and all substitute parts carry MSL 1 rating, eliminating moisture-related compatibility concerns.

Q: Are there package size differences between substitutes? A: All substitutes use the 0805 (2012 Metric) package with identical length (0.079" / 2.00mm) and width (0.049" / 1.25mm). Seated height varies slightly: 0.50mm (Vishay Dale parts), 0.60mm (Bourns, YAGEO RC series), 0.65mm (Samsung, TE Connectivity, Rohm), and 0.70mm (Panasonic). These variations are within standard PCB assembly tolerances and do not affect interchangeability.

Q: Which substitute offers the best availability? A: RC0805FR-0724KL (YAGEO) has the highest inventory at 109,290 units. CRG0805F24K (TE Connectivity) follows with 56,815 units. Both are suitable for high-volume procurement requirements.

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