MCR03EZPFX71R5 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX71R5 is a 71.5 Ohm ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This part is automotive-grade (AEC-Q200 certified) and designed for high-reliability applications requiring precise resistance values in compact form factors. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Resistance	71.5 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
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX71R5 is determined by strict equivalence across the following critical parameters:

Resistance value: 71.5 Ohms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W / 1/10W (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C to 155°C (exact match required)
RoHS compliance: ROHS3 Compliant (exact match required)
Moisture sensitivity: MSL 1 (exact match required)

All substitute parts listed below meet these criteria. Dimensional variations within standard tolerances and differences in packaging format (tape & reel vs. cut tape) do not affect functional equivalence.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
MCR03EZPFX71R5	Rohm Semiconductor	71.5Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	892 Pcs
MCR03ERTF71R5	Rohm Semiconductor	71.5Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Discontinued	2788 Pcs
CRCW060371R5FKEA	Vishay Dale	71.5Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	19775 Pcs
ERJ-3EKF71R5V	Panasonic Electronic Components	71.5Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	76885 Pcs
RMCF0603FT71R5	Stackpole Electronics Inc	71.5Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	6142 Pcs
CR0603-FX-71R5ELF	Bourns Inc.	71.5Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	55463 Pcs
RC0603FR-0771R5L	YAGEO	71.5Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	210882 Pcs

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive certification, select from: CRCW060371R5FKEA (Vishay Dale), ERJ-3EKF71R5V (Panasonic), or RMCF0603FT71R5 (Stackpole Electronics Inc). These parts maintain full automotive-grade qualification.

For non-automotive applications or where automotive certification is not required, CR0603-FX-71R5ELF (Bourns) and RC0603FR-0771R5L (YAGEO) are functionally equivalent alternatives with active product status and higher inventory availability.

Parts with active product status (CRCW060371R5FKEA, ERJ-3EKF71R5V, RMCF0603FT71R5, CR0603-FX-71R5ELF, RC0603FR-0771R5L) are preferred for new designs and long-term supply chain stability. MCR03ERTF71R5 remains available but shares discontinued status with the original part.

All listed substitutes are ROHS3 compliant with MSL 1 rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can I substitute MCR03EZPFX71R5 with any of the listed parts?

A: Yes, all listed parts are functionally equivalent. They share identical electrical specifications (71.5Ω ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C operating range) and package format (0603). Selection depends on application requirements and product status availability.

Q: What is the difference between AEC-Q200 and non-AEC-Q200 parts?

A: AEC-Q200 certification indicates automotive-grade qualification with enhanced reliability testing and traceability. CRCW060371R5FKEA, ERJ-3EKF71R5V, and RMCF0603FT71R5 carry this certification. Use AEC-Q200 parts for automotive applications; non-certified parts are suitable for general industrial and consumer applications.

Q: Are there packaging format differences between substitutes?

A: Packaging formats vary (Tape & Reel vs. Cut Tape & Digi-Reel), but these are supply chain formats only. The 0603 package footprint and electrical performance remain identical across all substitutes.

Q: Which substitute has the best inventory availability?

A: RC0603FR-0771R5L (YAGEO) has the highest inventory at 210,882 pieces. ERJ-3EKF71R5V (Panasonic) offers 76,885 pieces with active status and AEC-Q200 certification.

Q: Can I use these parts interchangeably on the same PCB?

A: Yes. All substitutes are pin-compatible with identical 0603 footprints and two-terminal configuration. No PCB redesign is required.

Q: What does MSL 1 rating mean?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life with no special moisture control requirements during storage or handling, simplifying logistics and manufacturing processes.

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