RCS2012F1434CS Equivalent & Substitute Parts

Part Overview

The RCS2012F1434CS is a 1.43 MOhm ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status and features anti-sulfur and moisture-resistant construction. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.

Key Parameters

Parameter	Specification
Resistance Value	1.43 MOhms
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F1434CS are qualified based on the following criteria:

Electrical Parameters (Must Match):

Resistance value: 1.43 MOhms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

Package type: 0805 (2012 Metric)
Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
Number of terminations: 2

Compliance Parameters (Must Match):

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected status

All three substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the RCS2012F1434CS.

Parameter Comparison

Parameter	RCS2012F1434CS (Samsung)	CRCW08051M43FKEA (Vishay Dale)	ERJ-6ENF1434V (Panasonic)	RC0805FR-071M43L (YAGEO)
Resistance	1.43 MOhms	1.43 MOhms	1.43 MOhms	1.43 MOhms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W
Package	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Size / Dimension	0.079" L x 0.049" W (2.00mm x 1.25mm)	0.079" L x 0.049" W (2.00mm x 1.25mm)	0.079" L x 0.049" W (2.00mm x 1.25mm)	0.079" L x 0.049" W (2.00mm x 1.25mm)
Height - Seated (Max)	0.026" (0.66mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts are qualified equivalents for the RCS2012F1434CS based on matching electrical, mechanical, and compliance specifications. Selection among these alternatives depends on application-specific requirements:

CRCW08051M43FKEA (Vishay Dale): Features automotive AEC-Q200 qualification and the lowest seated height (0.020" / 0.50mm), suitable for space-constrained applications requiring automotive-grade reliability.

ERJ-6ENF1434V (Panasonic): Provides automotive AEC-Q200 qualification with the highest seated height (0.028" / 0.70mm), appropriate for automotive and industrial applications requiring AEC-Q200 compliance.

RC0805FR-071M43L (YAGEO): Offers moisture-resistant construction with intermediate seated height (0.024" / 0.60mm), suitable for general industrial and consumer applications without automotive requirements.

All parts maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and identical electrical performance across the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can CRCW08051M43FKEA replace RCS2012F1434CS in any application?

A: CRCW08051M43FKEA is electrically and mechanically equivalent. The primary difference is automotive AEC-Q200 qualification and lower seated height (0.020" vs 0.026"). Substitution is valid for applications where these characteristics are compatible with PCB layout and design requirements.

Q: What is the significance of seated height differences among the substitute parts?

A: Seated height variations (0.020" to 0.028") affect PCB clearance and component stacking in high-density layouts. Verify that the substitute part's maximum seated height does not exceed available vertical space in your assembly.

Q: Are all substitute parts suitable for automotive applications?

A: CRCW08051M43FKEA and ERJ-6ENF1434V carry AEC-Q200 automotive qualification. RC0805FR-071M43L does not specify automotive qualification. For automotive applications, select CRCW08051M43FKEA or ERJ-6ENF1434V.

Q: Do all parts meet the same environmental compliance standards?

A: All four parts are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity). Environmental compliance is equivalent across all options.

Q: What distinguishes the RCS2012F1434CS from its substitutes?

A: The RCS2012F1434CS features anti-sulfur construction specific to Samsung's RCS series. Substitute parts offer equivalent electrical performance but may feature different protective coatings (automotive AEC-Q200 or general moisture resistance). Functional performance in standard applications is identical.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes, all parts share identical electrical specifications, tolerance, power rating, and package dimensions. Mechanical compatibility is confirmed across all options, allowing interchangeable use in production environments.

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