RC2012F2940CS 294 Ohm 1% 1/8W 0805 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC2012F2940CS is a 294 Ohm ±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 moisture resistant characteristics and ROHS3 compliance. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design requirements necessitate alternative sourcing from qualified manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	294 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 to 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RC2012F2940CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (294 Ohms), tolerance (±1%), power rating (0.125W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C) must be identical.

Mechanical Parameters: Package designation (0805 / 2012 Metric), number of terminations (2), and physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) must match.

Compliance Parameters: RoHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) are required for all substitutes.

Composition: Thick film construction is mandatory for all qualified substitutes.

Substitute parts are categorized as Direct Manufacturer equivalents (identical specifications with different manufacturer), Upgrade variants (additional certifications such as AEC-Q200 automotive qualification), or Similar alternatives (minor dimensional variations within acceptable tolerances).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp (°C)	Height Max (mm)	Features	Product Status
RC2012F2940CS	Samsung Electro-Mechanics	294Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155	0.65	Moisture Resistant	Active
ERJ-6ENF2940V	Panasonic Electronic Components	294Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155	0.70	Automotive AEC-Q200	Active
KTR10EZPF2940	Rohm Semiconductor	294Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155	0.65	Automotive AEC-Q200, High Voltage	Active
RC0805FR-07294RL	YAGEO	294Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155	0.60	Moisture Resistant	Active
RMCF0805FT294R	Stackpole Electronics Inc	294Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155	0.65	Automotive AEC-Q200	Active
AC0805FR-07294RL	YAGEO	294Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155	0.60	Automotive AEC-Q200, Moisture Resistant	Active
CRCW0805294RFKEA	Vishay Dale	294Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155	0.50	Automotive AEC-Q200	Active
MCR10ERTF2940	Rohm Semiconductor	294Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155	0.65	Standard Thick Film	Discontinued at DiGi Electronics

Engineering Selection Recommendations

Direct Manufacturer Equivalents (Preferred for Standard Applications):

ERJ-6ENF2940V (Panasonic) and RC0805FR-07294RL (YAGEO) provide direct electrical and mechanical equivalence to the RC2012F2940CS. Both maintain identical resistance, tolerance, power rating, temperature coefficient, and operating temperature specifications. These parts are suitable for applications where the original Samsung component is unavailable. ERJ-6ENF2940V includes AEC-Q200 automotive qualification, making it appropriate for automotive-grade applications. RC0805FR-07294RL retains moisture resistant characteristics matching the original design.

Upgrade Variants (Enhanced Specifications):

AC0805FR-07294RL (YAGEO) combines both Automotive AEC-Q200 certification and moisture resistant features, providing enhanced reliability for demanding environments. This part is classified as an upgrade option when design requirements include automotive qualification or when operating conditions demand superior moisture protection.

KTR10EZPF2940 (Rohm Semiconductor) and RMCF0805FT294R (Stackpole Electronics Inc) both carry AEC-Q200 automotive qualification. KTR10EZPF2940 includes high voltage capability designation. These parts are suitable for automotive and industrial applications requiring certified component qualification.

CRCW0805294RFKEA (Vishay Dale) provides AEC-Q200 automotive qualification with the lowest maximum seated height (0.50mm), offering potential advantages in space-constrained PCB designs.

Discontinued Components:

MCR10ERTF2940 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new designs or long-term supply requirements. This part is listed for reference only in legacy system documentation.

Compliance Verification:

All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), ensuring regulatory and environmental compatibility with the original RC2012F2940CS specification.

Frequently Asked Questions (FAQ)

Q: Can ERJ-6ENF2940V be used as a direct replacement for RC2012F2940CS?

A: Yes. ERJ-6ENF2940V meets all electrical parameters (294Ω ±1%, 0.125W, ±100ppm/°C, -55°C to 155°C) and mechanical specifications (0805 package, 2 terminations, identical dimensions). The maximum seated height difference (0.70mm vs 0.65mm) is within acceptable PCB assembly tolerances. AEC-Q200 certification provides additional qualification benefit.

Q: What is the difference between moisture resistant and standard thick film variants?

A: Moisture resistant variants (RC2012F2940CS, RC0805FR-07294RL, AC0805FR-07294RL) include protective coating to reduce moisture absorption and maintain performance in humid environments. Standard thick film variants (MCR10ERTF2940) lack this protection. Selection depends on application environment and humidity exposure requirements.

Q: Are all substitute parts suitable for automotive applications?

A: Parts with AEC-Q200 certification (ERJ-6ENF2940V, KTR10EZPF2940, RMCF0805FT294R, AC0805FR-07294RL, CRCW0805294RFKEA) are qualified for automotive use. The original RC2012F2940CS and RC0805FR-07294RL lack automotive certification and should not be specified for automotive applications requiring AEC-Q200 compliance.

Q: Does the maximum seated height variation affect PCB assembly compatibility?

A: Maximum seated height ranges from 0.50mm (CRCW0805294RFKEA) to 0.70mm (ERJ-6ENF2940V). These variations are within standard PCB assembly process tolerances and do not affect reflow soldering, wave soldering, or component placement. Height differences may be relevant only in extremely space-constrained applications with height restrictions below 0.50mm.

Q: Can MCR10ERTF2940 be used in new designs?

A: No. MCR10ERTF2940 is discontinued at DiGi Electronics and should not be selected for new product designs or applications requiring long-term component availability. Use active alternatives such as ERJ-6ENF2940V, RC0805FR-07294RL, or AC0805FR-07294RL instead.

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

A: The RC2012F2940CS is supplied in Tape & Reel (TR) format. Most substitutes (ERJ-6ENF2940V, KTR10EZPF2940, RC0805FR-07294RL, RMCF0805FT294R, AC0805FR-07294RL, CRCW0805294RFKEA) are available in Tape & Reel format. MCR10ERTF2940 is supplied in Cut Tape (CT) & Digi-Reel format. Verify packaging format requirements with procurement specifications before component selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), ensuring regulatory equivalence with the original RC2012F2940CS specification.

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