MCR03EZPFX93R1 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX93R1 is a 93.1 Ohms ±1% thick film chip resistor in 0603 (1608 Metric) package rated for 0.1W power dissipation. Manufactured by Rohm Semiconductor, this component meets AEC-Q200 automotive qualification standards and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Resistance	93.1 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 eligibility for the MCR03EZPFX93R1 is determined by strict equivalence across the following parameters:

Resistance value: 93.1 Ohms
Tolerance: ±1%
Power rating: 0.1W
Package designation: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS and environmental compliance: ROHS3 Compliant, MSL 1

All identified substitute parts meet these core electrical and mechanical specifications. Substitutes are categorized as Direct (full AEC-Q200 automotive qualification match) or Similar (meets electrical specifications with alternative feature sets).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	Status
MCR03EZPFX93R1	Rohm Semiconductor	93.1 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Discontinued
CRCW060393R1FKEA	Vishay Dale	93.1 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Active
ERJ-3EKF93R1V	Panasonic Electronic Components	93.1 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Active
RMCF0603FT93R1	Stackpole Electronics Inc	93.1 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Active
RC0603FR-0793R1L	YAGEO	93.1 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	No	Active

Engineering Selection Recommendations

Direct substitutes CRCW060393R1FKEA, ERJ-3EKF93R1V, and RMCF0603FT93R1 maintain full AEC-Q200 automotive qualification parity with the original MCR03EZPFX93R1. All three are currently in active production status with substantial inventory availability (21,174 to 82,653 units), ensuring supply chain continuity. These parts are functionally interchangeable for automotive and industrial applications requiring AEC-Q200 compliance.

RC0603FR-0793R1L from YAGEO provides electrical equivalence with identical resistance, tolerance, power rating, and temperature specifications. This part carries moisture-resistant thick film construction rather than automotive qualification. Selection of this alternative is appropriate for non-automotive applications or where moisture resistance is a primary design requirement and AEC-Q200 certification is not mandated.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0793R1L replace MCR03EZPFX93R1 in automotive applications?

A: RC0603FR-0793R1L does not carry AEC-Q200 automotive qualification. Use only in applications where automotive qualification is not a design requirement. For automotive designs, select from CRCW060393R1FKEA, ERJ-3EKF93R1V, or RMCF0603FT93R1.

Q: Are all substitute parts physically compatible with the original PCB footprint?

A: All substitute parts use the 0603 (1608 Metric) package. Physical dimensions vary slightly within manufacturing tolerances (length 1.55–1.60mm, width 0.80–0.85mm, height 0.50–0.55mm). These variations are within standard PCB design tolerances for 0603 components and do not affect footprint compatibility.

Q: What is the difference between Direct and Similar substitutes?

A: Direct substitutes (CRCW060393R1FKEA, ERJ-3EKF93R1V, RMCF0603FT93R1) maintain AEC-Q200 automotive qualification matching the original part. The Similar substitute (RC0603FR-0793R1L) meets all electrical specifications but carries moisture-resistant rather than automotive qualification.

Q: Do all substitutes meet RoHS3 compliance?

A: All listed substitute parts are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original MCR03EZPFX93R1 environmental compliance profile.

Q: Which substitute offers the highest inventory availability?

A: ERJ-3EKF93R1V from Panasonic Electronic Components maintains the highest inventory level at 82,653 units, followed by RC0603FR-0793R1L at 753,604 units. For AEC-Q200 qualified alternatives, ERJ-3EKF93R1V provides optimal supply security.

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