RCS2012F432CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F432CS is a 4.3 kOhms ±1% 0.125W (1/8W) thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with anti-sulfur and moisture-resistant construction. The part is supplied in Tape & Reel (TR) packaging with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct circuit board compatibility and functional interchangeability.

Key Parameters

Parameter	Value
Resistance	4.3 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
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F432CS are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Core Matching Parameters:

Resistance value: 4.3 kOhms
Tolerance: ±1%
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature: -55°C ~ 155°C
Terminations: 2
RoHS Status: ROHS3 Compliant
MSL: 1 (Unlimited)

Substitution Categories:

Category A - Direct Equivalents (Identical Power Rating 0.125W/1/8W): Parts with matching 0.125W power rating, identical dimensions, and standard automotive or industrial ratings.

Category B - Higher Power Rating Substitutes (0.4W or 0.5W): Parts with elevated power ratings that maintain all other electrical and mechanical specifications. These provide enhanced thermal performance while maintaining circuit compatibility.

Category C - Packaging Variant (Cut Tape vs. Tape & Reel): Parts with identical electrical specifications but alternative packaging format for specific supply chain requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Op. Temp Range	Height Max	Features	Ratings
RCS2012F432CS	Samsung Electro-Mechanics	4.3 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.66mm	Anti-Sulfur, Moisture Resistant	—
AC0805FR-074K3L	YAGEO	4.3 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.60mm	Automotive AEC-Q200, Moisture Resistant	AEC-Q200
CRCW08054K30FKEA	Vishay Dale	4.3 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	Automotive AEC-Q200	AEC-Q200
CRCW08054K30FKEAHP	Vishay Dale	4.3 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	Automotive AEC-Q200, Pulse Withstanding	AEC-Q200
ERJ-6ENF4301V	Panasonic Electronic Components	4.3 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.70mm	Automotive AEC-Q200	AEC-Q200
ESR10EZPF4301	Rohm Semiconductor	4.3 kOhms	±1%	0.4W	0805	±100ppm/°C	-55°C ~ 155°C	0.65mm	Automotive AEC-Q200, Pulse Withstanding	AEC-Q200
RC0805FR-074K3L	YAGEO	4.3 kOhms	±1%	0.125W	0805	±100ppm/°C	-55°C ~ 155°C	0.60mm	Moisture Resistant	—
RCS08054K30FKEA	Vishay Dale	4.3 kOhms	±1%	0.5W	0805	±100ppm/°C	-55°C ~ 155°C	0.50mm	Automotive AEC-Q200, Pulse Withstanding	AEC-Q200

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

AC0805FR-074K3L (YAGEO), CRCW08054K30FKEA (Vishay Dale), ERJ-6ENF4301V (Panasonic), and RC0805FR-074K3L (YAGEO) are functionally equivalent to RCS2012F432CS with matching 0.125W power rating, 4.3 kOhms resistance, ±1% tolerance, and 0805 package format. All substitute parts maintain ROHS3 compliance and MSL 1 rating. AC0805FR-074K3L, CRCW08054K30FKEA, and ERJ-6ENF4301V carry AEC-Q200 automotive qualification, providing enhanced reliability for automotive applications.

For Enhanced Thermal Performance:

CRCW08054K30FKEAHP (Vishay Dale), ESR10EZPF4301 (Rohm Semiconductor), and RCS08054K30FKEA (Vishay Dale) provide higher power ratings (0.4W or 0.5W) while maintaining all other electrical and mechanical specifications. These parts are suitable for applications requiring improved thermal dissipation or pulse withstanding capability. All three carry AEC-Q200 automotive qualification.

For Packaging Flexibility:

RC0805FR-074K3L (YAGEO) is supplied in Cut Tape (CT) & Digi-Reel® packaging instead of standard Tape & Reel format, offering alternative supply chain options while maintaining identical electrical performance.

Compliance Considerations:

All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8533.21.0030, matching the regulatory status of the primary part.

Frequently Asked Questions (FAQ)

Q1: Can AC0805FR-074K3L replace RCS2012F432CS in all applications?

AC0805FR-074K3L is a direct electrical equivalent with matching 4.3 kOhms resistance, ±1% tolerance, 0.125W power rating, and 0805 package. The primary difference is AEC-Q200 automotive qualification and slightly lower seated height (0.60mm vs. 0.66mm). This substitution is valid for applications where the lower profile does not create mechanical interference and automotive-grade reliability is acceptable or beneficial.

Q2: What is the difference between 0.125W and 0.5W power-rated substitutes?

The 0.125W (1/8W) rating matches the original RCS2012F432CS specification. Higher power-rated substitutes such as CRCW08054K30FKEAHP (0.5W) and RCS08054K30FKEA (0.5W) provide enhanced thermal dissipation capability while maintaining identical electrical resistance, tolerance, and package dimensions. These are suitable for circuits with higher power dissipation requirements or pulse withstanding applications. The 0.4W ESR10EZPF4301 provides intermediate thermal performance.

Q3: Are all substitute parts suitable for automotive applications?

AC0805FR-074K3L, CRCW08054K30FKEA, CRCW08054K30FKEAHP, ERJ-6ENF4301V, ESR10EZPF4301, and RCS08054K30FKEA carry AEC-Q200 automotive qualification. RC0805FR-074K3L and the original RCS2012F432CS do not carry explicit automotive ratings. Selection depends on application requirements and automotive compliance mandates.

Q4: Does seated height variation affect circuit board compatibility?

All substitute parts maintain 0805 (2012 Metric) package format with seated heights ranging from 0.50mm to 0.70mm. The original RCS2012F432CS has 0.66mm maximum seated height. Variations within this range typically do not affect standard PCB assembly processes or component placement. Verify specific design constraints if height-critical applications are involved.

Q5: What is the significance of "Pulse Withstanding" feature in substitute parts?

CRCW08054K30FKEAHP, ESR10EZPF4301, and RCS08054K30FKEA include pulse withstanding capability, indicating enhanced performance under transient overvoltage or overcurrent conditions. This feature is beneficial for circuits exposed to switching transients, inductive load switching, or ESD events. Standard parts without this designation are suitable for stable DC or low-frequency AC applications.

Q6: Can RC0805FR-074K3L be used interchangeably with tape & reel packaged parts?

RC0805FR-074K3L is supplied in Cut Tape (CT) & Digi-Reel® format instead of standard Tape & Reel (TR). Electrical and mechanical specifications are identical. Packaging format affects supply chain logistics and automated assembly compatibility. Verify that assembly equipment supports the alternative packaging format before substitution.

Q7: Are all parts ROHS3 compliant?

All listed substitute parts and the primary RCS2012F432CS are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH unaffected status. Regulatory compliance is consistent across all options.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message