MCR03EZPFX1401 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1401 is a 1.4 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 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	1.4 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 for the MCR03EZPFX1401 is determined by strict equivalence across the following parameters:

Resistance value: 1.4 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
RoHS3 compliance
MSL rating: 1 (Unlimited)

All substitute parts listed meet these electrical and mechanical specifications. Direct substitutes maintain identical AEC-Q200 automotive qualification. Similar substitutes meet all core electrical parameters and RoHS compliance but may have variations in specific feature sets (such as moisture resistance designation).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	RoHS3	MSL
MCR03EZPFX1401	Rohm Semiconductor	1.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	Compliant	1
CRCW06031K40FKEA	Vishay Dale	1.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Compliant	1
ERJ-3EKF1401V	Panasonic Electronic Components	1.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Compliant	1
RMCF0603FT1K40	Stackpole Electronics Inc	1.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Compliant	1
AC0603FR-071K4L	YAGEO	1.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Compliant	1
CR0603-FX-1401ELF	Bourns Inc.	1.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	Compliant	1
RC0603FR-071K4L	YAGEO	1.4 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	Compliant	1

Engineering Selection Recommendations

For applications requiring strict AEC-Q200 automotive compliance, select from the direct substitutes: CRCW06031K40FKEA (Vishay Dale), ERJ-3EKF1401V (Panasonic Electronic Components), or RMCF0603FT1K40 (Stackpole Electronics Inc). All three maintain active product status and full automotive qualification.

For non-automotive applications or where automotive qualification is not mandatory, AC0603FR-071K4L (YAGEO), CR0603-FX-1401ELF (Bourns Inc.), and RC0603FR-071K4L (YAGEO) provide equivalent electrical performance with RoHS3 compliance and unlimited moisture sensitivity rating.

All listed substitutes are available in Tape & Reel packaging and maintain identical electrical specifications within the stated tolerance and temperature coefficient parameters.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-1401ELF or RC0603FR-071K4L as direct replacements for MCR03EZPFX1401 in automotive applications?

A: CR0603-FX-1401ELF and RC0603FR-071K4L do not carry AEC-Q200 automotive qualification. Use these only in non-automotive applications or where automotive certification is not required. For automotive applications, select CRCW06031K40FKEA, ERJ-3EKF1401V, or RMCF0603FT1K40.

Q: Are all substitute parts available in the same 0603 package?

A: Yes. All substitute parts use the 0603 (1608 Metric) package with identical footprint compatibility. Physical dimensions vary slightly within manufacturing tolerances but remain within the 0603 standard specification.

Q: What is the significance of the ±100ppm/°C temperature coefficient?

A: The temperature coefficient defines the resistance change per degree Celsius across the operating temperature range. All listed parts maintain ±100ppm/°C, ensuring consistent performance across the -55°C to 155°C operating range.

Q: Do all substitutes meet RoHS3 compliance?

A: Yes. All substitute parts listed are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1), suitable for standard storage and handling conditions.

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

A: Direct substitutes (CRCW06031K40FKEA, ERJ-3EKF1401V, RMCF0603FT1K40) maintain AEC-Q200 automotive qualification. Similar substitutes (AC0603FR-071K4L, CR0603-FX-1401ELF, RC0603FR-071K4L) meet all core electrical specifications and RoHS compliance but lack automotive certification.

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