MCR03EZPFX4022 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX4022 is a 40.2 kOhms ±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 operating temperature range of -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for direct board-level substitution.

Key Parameters

Parameter	Specification
Resistance Value	40.2 kOhms
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
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

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

Resistance value: 40.2 kOhms
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
Moisture sensitivity level: 1 (Unlimited)

Parts are classified into two categories:

Direct Substitutes maintain full equivalence including automotive AEC-Q200 certification and ROHS3 compliance status.

Similar Substitutes meet all electrical and mechanical parameters but differ in feature classification (moisture resistant designation instead of automotive rating) or compliance status.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op Temp Range	AEC-Q200	RoHS Status	Product Status
MCR03EZPFX4022	Rohm Semiconductor	40.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	Discontinued
CRCW060340K2FKEA	Vishay Dale	40.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	Active
CRCW060340K2FKTA	Vishay Dale	40.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	RoHS Non-compliant	Active
ERJ-3EKF4022V	Panasonic Electronic Components	40.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	Active
RMCF0603FG40K2	Stackpole Electronics Inc	40.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	Active
RMCF0603FT40K2	Stackpole Electronics Inc	40.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3	Active
CR0603-FX-4022ELF	Bourns Inc.	40.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	ROHS3	Active
RC0603FR-0740K2L	YAGEO	40.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	ROHS3	Active

Engineering Selection Recommendations

Direct Substitutes (Full Equivalence):

CRCW060340K2FKEA, ERJ-3EKF4022V, RMCF0603FG40K2, and RMCF0603FT40K2 are direct substitutes. All maintain AEC-Q200 automotive certification, ROHS3 compliance, and active product status. These parts are interchangeable at the board level without design modification.

Conditional Substitutes:

CRCW060340K2FKTA is electrically and mechanically equivalent but carries RoHS non-compliant status and REACH affected designation. Selection requires verification against end-product compliance requirements.

Similar Substitutes (Feature Variation):

CR0603-FX-4022ELF and RC0603FR-0740K2L meet all electrical and mechanical parameters but lack AEC-Q200 automotive certification, featuring moisture-resistant designation instead. These are suitable for non-automotive applications or where automotive qualification is not required.

Availability Consideration:

ERJ-3EKF4022V (130,457 pcs) and CR0603-FX-4022ELF (177,068 pcs) demonstrate highest inventory availability among active alternatives.

Frequently Asked Questions (FAQ)

Q: Can I substitute MCR03EZPFX4022 with any of these parts in an automotive application?

A: Direct substitutes CRCW060340K2FKEA, ERJ-3EKF4022V, RMCF0603FG40K2, and RMCF0603FT40K2 maintain AEC-Q200 certification and are suitable for automotive use. CR0603-FX-4022ELF and RC0603FR-0740K2L lack automotive qualification and are not recommended for automotive applications.

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

A: Direct substitutes maintain identical feature sets including AEC-Q200 automotive rating and ROHS3 compliance. Similar substitutes meet all electrical and mechanical specifications but differ in feature classification or certification status.

Q: Are there physical dimension differences between these parts?

A: All parts use 0603 (1608 Metric) package. Minor variations exist in seated height (0.020" to 0.022") and length/width dimensions (1.55mm to 1.60mm L, 0.80mm to 0.85mm W). These variations remain within standard 0603 package tolerances and do not affect PCB footprint compatibility.

Q: Which substitute offers the best availability?

A: CR0603-FX-4022ELF (177,068 pcs) and ERJ-3EKF4022V (130,457 pcs) provide highest inventory levels. For automotive-qualified alternatives, ERJ-3EKF4022V offers superior availability.

Q: Does RoHS compliance status affect substitution eligibility?

A: RoHS compliance is a regulatory requirement dependent on end-product application and target market. CRCW060340K2FKTA is RoHS non-compliant and requires compliance verification before use. All other alternatives are ROHS3 compliant.

Q: Can CRCW060340K2FKTA be used as a substitute?

A: CRCW060340K2FKTA is electrically and mechanically equivalent but carries RoHS non-compliant and REACH affected status. Selection requires confirmation that end-product compliance requirements permit non-compliant component use.

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