MCR03EZPFX38R3 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX38R3 is a 38.3 Ohm ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This automotive-grade component meets AEC-Q200 specifications and operates across -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	38.3 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 to 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for MCR03EZPFX38R3 is determined by strict equivalence across the following parameters:

Resistance value: 38.3 Ohms
Tolerance: ±1%
Power rating: 0.1W
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
RoHS3 compliance
MSL rating: 1

All substitute parts listed maintain these electrical and mechanical specifications. Direct substitutes are functionally equivalent across all critical parameters. Similar substitutes meet the same core specifications but may differ in secondary features such as automotive certification or moisture resistance characteristics.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op Temp Range	AEC-Q200	Product Status
MCR03EZPFX38R3	Rohm Semiconductor	38.3 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued
MCR03ERTF38R3	Rohm Semiconductor	38.3 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Discontinued
CRCW060338R3FKEA	Vishay Dale	38.3 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active
ERJ-3EKF38R3V	Panasonic Electronic Components	38.3 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active
RMCF0603FT38R3	Stackpole Electronics Inc	38.3 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active
RC0603FR-0738R3L	YAGEO	38.3 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive certification, select from CRCW060338R3FKEA (Vishay Dale), ERJ-3EKF38R3V (Panasonic), or RMCF0603FT38R3 (Stackpole Electronics). All three are currently in active production status with high inventory availability.

CRCW060338R3FKEA offers the largest inventory (41,746 pcs) and active product status, making it the primary choice for new designs and high-volume applications.

For non-automotive applications where AEC-Q200 certification is not required, RC0603FR-0738R3L (YAGEO) provides an alternative with moisture-resistant characteristics and extensive inventory (178,887 pcs).

MCR03ERTF38R3 (Rohm Semiconductor) is a direct manufacturer equivalent but shares discontinued status with the original part, limiting its suitability for long-term supply chain planning.

Frequently Asked Questions (FAQ)

Q: Can MCR03EZPFX38R3 be directly replaced with any of these substitutes?

A: Yes. All listed parts maintain identical electrical specifications (38.3 Ohms ±1%, 0.1W, ±100ppm/°C) and mechanical compatibility (0603 package, 2 terminations). Physical dimensions vary slightly within tolerance, but all fit standard 0603 footprints.

Q: What is the difference between direct and similar substitutes?

A: Direct substitutes (MCR03ERTF38R3, CRCW060338R3FKEA, ERJ-3EKF38R3V, RMCF0603FT38R3) meet all core electrical and mechanical parameters. The similar substitute (RC0603FR-0738R3L) also meets these parameters but lacks AEC-Q200 automotive certification and features moisture resistance instead.

Q: Which substitute is best for automotive applications?

A: CRCW060338R3FKEA, ERJ-3EKF38R3V, and RMCF0603FT38R3 all carry AEC-Q200 certification. CRCW060338R3FKEA is recommended due to active production status and highest inventory availability.

Q: Are there packaging differences between substitutes?

A: All parts use 0603 (1608 Metric) package. Packaging formats differ (Cut Tape, Digi-Reel, Tape & Reel) but do not affect electrical or mechanical compatibility. Physical dimensions vary within ±0.005" across length and width, and ±0.002" in height, all within standard 0603 tolerances.

Q: What is the MSL rating and why does it matter?

A: All parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Components can be stored indefinitely without desiccant packaging or time-limited shelf life constraints.

Q: Is RoHS3 compliance maintained across all substitutes?

A: Yes. All listed parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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