MCR03EZPFX5901 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX5901 is a 5.9 kOhms ±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 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	5.9 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 to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across electrical and mechanical parameters. All substitute parts must match the following criteria:

Resistance value: 5.9 kOhms
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
RoHS3 compliance
MSL rating: 1 (Unlimited)

Substitute parts are categorized as Direct Substitutes (identical electrical and mechanical specifications with active product status) and Similar Substitutes (equivalent electrical performance with minor dimensional variations or different feature sets).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op Temp Range	AEC-Q200	Product Status	Inventory
MCR03EZPFX5901	Rohm Semiconductor	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	702 Pcs
CRCW06035K90FKEA	Vishay Dale	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	18577 Pcs
CRCW06035K90FKEB	Vishay Dale	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	28225 Pcs
ERJ-3EKF5901V	Panasonic Electronic Components	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	310809 Pcs
RMCF0603FT5K90	Stackpole Electronics Inc	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	770680 Pcs
AC0603FR-075K9L	YAGEO	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	9115 Pcs
CR0603-FX-5901ELF	Bourns Inc.	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	82676 Pcs
RC0603FR-075K9L	YAGEO	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	174885 Pcs
RC1608F5901CS	Samsung Electro-Mechanics	5.9 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	1059 Pcs

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive qualification, select from active parts with confirmed AEC-Q200 ratings: CRCW06035K90FKEA (Vishay Dale), ERJ-3EKF5901V (Panasonic), or RMCF0603FT5K90 (Stackpole Electronics). RMCF0603FT5K90 offers the highest inventory availability at 770,680 pieces.

For non-automotive applications or where AEC-Q200 is not mandatory, AC0603FR-075K9L, RC0603FR-075K9L, RC1608F5901CS, and CR0603-FX-5901ELF are active alternatives. All candidates maintain ROHS3 compliance and MSL 1 rating.

CRCW06035K90FKEA is the preferred direct substitute, offering active product status, full AEC-Q200 compliance, and adequate inventory with identical electrical specifications to the original MCR03EZPFX5901.

Frequently Asked Questions (FAQ)

Q: Can I use a part without AEC-Q200 certification as a substitute for MCR03EZPFX5901?

A: Only if your application does not require automotive qualification. If AEC-Q200 is a design requirement, select from CRCW06035K90FKEA, ERJ-3EKF5901V, RMCF0603FT5K90, or AC0603FR-075K9L.

Q: Are there dimensional differences between substitute parts?

A: All parts share the 0603 (1608 Metric) package designation. Minor variations exist in seated height and length/width dimensions within the 0603 specification range. Verify PCB footprint compatibility with component datasheets if dimensional tolerance is critical.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Packaging format affects handling and automation compatibility. Cut Tape (CT) suits lower-volume assembly; Tape & Reel (TR) is standard for high-volume production. Electrical performance is identical.

Q: Why is RMCF0603FT5K90 recommended despite lacking AEC-Q200?

A: RMCF0603FT5K90 is recommended only for non-automotive applications. For automotive use, select AEC-Q200 qualified alternatives.

Q: Can I mix different substitute parts in the same design?

A: Yes, provided all selected parts meet your application's electrical and compliance requirements. Ensure consistent sourcing practices for production builds.

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