MCR03EZPFX43R2 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX43R2 is a 43.2 Ohm ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This component is rated for automotive applications under AEC-Q200 standard with an operating temperature range of -55°C to 155°C. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Resistance	43.2 Ohms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 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

Substitution for the MCR03EZPFX43R2 is determined by strict equivalence across the following parameters:

Resistance value: 43.2 Ohms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS3 compliance
MSL rating: 1 (Unlimited)

All substitute parts listed maintain these electrical and mechanical specifications. Differences in product status (active vs. discontinued), packaging format (Cut Tape vs. Tape & Reel), and optional automotive certifications are noted but do not affect functional equivalence.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Status	AEC-Q200	Inventory
MCR03EZPFX43R2	Rohm Semiconductor	43.2 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Discontinued	Yes	1028 Pcs
MCR03ERTF43R2	Rohm Semiconductor	43.2 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Discontinued	No	3084 Pcs
CRCW060343R2FKEA	Vishay Dale	43.2 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	38507 Pcs
ERJ-3EKF43R2V	Panasonic Electronic Components	43.2 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	77650 Pcs
RMCF0603FT43R2	Stackpole Electronics Inc	43.2 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1345 Pcs
CR0603-FX-43R2ELF	Bourns Inc.	43.2 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	No	54913 Pcs
RC0603FR-0743R2L	YAGEO	43.2 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	No	130747 Pcs

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive certification, select from: CRCW060343R2FKEA (Vishay Dale), ERJ-3EKF43R2V (Panasonic), or RMCF0603FT43R2 (Stackpole Electronics Inc). All three are currently active products with full automotive qualification.

For non-automotive applications or where automotive certification is not mandated, CR0603-FX-43R2ELF (Bourns) and RC0603FR-0743R2L (YAGEO) are viable alternatives with active product status and higher inventory availability.

MCR03ERTF43R2 (Rohm Semiconductor) is a direct manufacturer equivalent but lacks AEC-Q200 certification and is discontinued. This part should be considered only when existing stock is available and automotive qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can MCR03EZPFX43R2 be replaced with any of these substitute parts?

A: Yes, all listed parts are electrically and mechanically equivalent. They share identical resistance (43.2 Ω), tolerance (±1%), power rating (0.1W), package (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C).

Q: What is the difference between parts with and without AEC-Q200 certification?

A: AEC-Q200 certification indicates the part meets automotive industry reliability and quality standards. For automotive applications, select only AEC-Q200 rated parts. For general industrial or consumer applications, non-certified parts are acceptable.

Q: Are there physical dimension differences between substitute parts?

A: Minor variations exist. Most parts measure 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. CRCW060343R2FKEA measures 0.061" L x 0.033" W (1.55mm x 0.85mm) with 0.020" (0.50mm) maximum seated height. RMCF0603FT43R2 measures 0.061" L x 0.031" W (1.55mm x 0.80mm). These variations are within standard 0603 package tolerances and do not affect PCB footprint compatibility.

Q: What packaging formats are available?

A: MCR03ERTF43R2 is supplied in Cut Tape (CT) & Digi-Reel format. All other substitutes are supplied in Tape & Reel (TR) format. Select based on your assembly process requirements.

Q: Are all parts RoHS3 compliant?

A: Yes, all listed parts are ROHS3 compliant and REACH unaffected.

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