RMCS0805FT43K2 Equivalent & Substitute Parts

Part Overview

The RMCS0805FT43K2 is a 43.2 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This component is classified as Active product status with anti-sulfur composition. Equivalent and substitute parts are identified when identical electrical specifications, mechanical dimensions, and package compatibility are maintained across different manufacturers or product series.

Key Parameters

Parameter	Value
Resistance	43.2 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RMCS0805FT43K2 are qualified based on the following criteria:

Identical resistance value: 43.2 kOhms
Identical tolerance: ±1%
Identical power rating: 0.125W (1/8W)
Identical package: 0805 (2012 Metric)
Identical composition: Thick Film
Identical temperature coefficient: ±100ppm/°C
Identical operating temperature range: -55°C ~ 155°C
Compliance with ROHS3 and REACH requirements
Moisture Sensitivity Level 1 (Unlimited)

Substitutes may differ in manufacturer-specific features (anti-sulfur, automotive AEC-Q200 certification, moisture resistant) and minor dimensional variations in seated height, which do not affect functional interchangeability in standard applications.

Parameter Comparison

Parameter	RMCS0805FT43K2	RMCF0805FT43K2	CRCW080543K2FKEA	ERJ-6ENF4322V	RC0805FR-0743K2L
Manufacturer	Stackpole Electronics Inc	Stackpole Electronics Inc	Vishay Dale	Panasonic Electronic Components	YAGEO
Resistance	43.2 kOhms	43.2 kOhms	43.2 kOhms	43.2 kOhms	43.2 kOhms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.125W	0.125W	0.125W	0.125W	0.125W
Package	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±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	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Height - Seated (Max)	0.024" (0.60mm)	0.026" (0.65mm)	0.020" (0.50mm)	0.028" (0.70mm)	0.024" (0.60mm)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain identical core electrical and mechanical specifications required for direct interchangeability with the RMCS0805FT43K2. Selection among substitutes should be based on:

RMCF0805FT43K2 (Stackpole Electronics Inc): Automotive AEC-Q200 certified variant of the same manufacturer series. Suitable for applications requiring automotive-grade qualification.

CRCW080543K2FKEA (Vishay Dale): Automotive AEC-Q200 certified thick film resistor with lowest seated height (0.020"). Appropriate for space-constrained PCB layouts and automotive applications.

ERJ-6ENF4322V (Panasonic Electronic Components): Automotive AEC-Q200 certified option with highest inventory availability. Suitable for high-volume production and automotive-grade requirements.

RC0805FR-0743K2L (YAGEO): Moisture resistant thick film resistor without automotive certification. Suitable for general industrial and consumer applications requiring moisture resistance.

All parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can RMCF0805FT43K2 replace RMCS0805FT43K2 in non-automotive applications? A: Yes. RMCF0805FT43K2 maintains identical electrical specifications and package dimensions. The AEC-Q200 automotive certification is an additional qualification that does not restrict use in non-automotive circuits.

Q: What is the significance of the seated height variation among substitutes? A: Seated height differences (0.020" to 0.028") are within standard 0805 package tolerances. For most applications, these variations are not functionally significant. However, in space-constrained designs with tight clearance requirements, CRCW080543K2FKEA (0.020" max) offers the lowest profile option.

Q: Are anti-sulfur and moisture-resistant features interchangeable? A: These are distinct manufacturer-specific features. Anti-sulfur composition (RMCS series) and moisture-resistant formulation (RC0805FR series) address different environmental concerns. Selection depends on application environment. Both provide equivalent electrical performance.

Q: Can automotive AEC-Q200 certified parts be used in non-automotive applications? A: Yes. AEC-Q200 certification indicates enhanced reliability testing and qualification. These parts are fully compatible with non-automotive applications and may provide additional reliability margin.

Q: Are all substitutes available in Tape & Reel packaging? A: Yes. All listed substitute parts are supplied in Tape & Reel (TR) packaging, maintaining compatibility with automated assembly processes.

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