MCR03EZPFX22R1 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX22R1 is a 22.1 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	22.1 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 to 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX22R1 is determined by strict equivalence across the following parameters:

Resistance value: 22.1 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
Termination count: 2
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1

All identified substitutes meet these core electrical and mechanical parameters. Substitutes are categorized as Direct (functionally identical with automotive AEC-Q200 rating) or Similar (functionally identical with moisture-resistant features but without explicit AEC-Q200 designation).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
MCR03EZPFX22R1	Rohm Semiconductor	22.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	797 Pcs
CRCW060322R1FKEA	Vishay Dale	22.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	28797 Pcs
ERJ-3EKF22R1V	Panasonic Electronic Components	22.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	205974 Pcs
RMCF0603FT22R1	Stackpole Electronics Inc	22.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	263572 Pcs
CR0603-FX-22R1ELF	Bourns Inc.	22.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	264280 Pcs
RC0603FR-0722R1L	YAGEO	22.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	5100 Pcs

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 compliance, direct substitutes CRCW060322R1FKEA (Vishay Dale), ERJ-3EKF22R1V (Panasonic), and RMCF0603FT22R1 (Stackpole) are preferred. All three maintain active product status with robust inventory availability and identical electrical specifications to the original MCR03EZPFX22R1.

For non-automotive or general-purpose applications where AEC-Q200 certification is not mandatory, CR0603-FX-22R1ELF (Bourns) and RC0603FR-0722R1L (YAGEO) provide functionally equivalent alternatives with moisture-resistant thick film construction. Both are actively manufactured with substantial inventory levels.

All substitutes are ROHS3 compliant with MSL 1 rating, ensuring compatibility with standard PCB assembly processes and long-term storage without moisture sensitivity concerns.

Frequently Asked Questions (FAQ)

Q: Can I substitute the MCR03EZPFX22R1 with any of the listed alternatives?

A: Direct substitutes (CRCW060322R1FKEA, ERJ-3EKF22R1V, RMCF0603FT22R1) are fully equivalent for automotive applications. Similar substitutes (CR0603-FX-22R1ELF, RC0603FR-0722R1L) are electrically and mechanically equivalent but lack explicit AEC-Q200 certification. Selection depends on application requirements.

Q: What is the significance of the 0603 package specification?

A: The 0603 (1608 Metric) package defines the physical dimensions and footprint. All listed substitutes use identical 0603 packaging, ensuring direct PCB compatibility without layout modifications.

Q: Does tolerance affect substitutability?

A: All substitutes maintain ±1% tolerance matching the original part. This tolerance level is critical for precision circuit applications and must not be compromised during substitution.

Q: Are there inventory considerations for part selection?

A: ERJ-3EKF22R1V (205974 Pcs) and RMCF0603FT22R1 (263572 Pcs) offer the highest inventory availability. CRCW060322R1FKEA (28797 Pcs) provides adequate stock for most applications. RC0603FR-0722R1L (5100 Pcs) has limited availability.

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

A: Direct substitutes carry AEC-Q200 automotive qualification. Similar substitutes feature moisture-resistant construction but do not carry explicit automotive certification. For automotive designs, Direct substitutes are required.

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