MCR03EZPFX1131 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1131 is a 1.13 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	1.13 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX1131 is determined by strict equivalence across the following parameters:

Resistance value: 1.13 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)

Substitute parts are categorized as Direct Manufacturer equivalents (identical specifications across all parameters) or Similar parts (functionally equivalent with minor feature variations such as moisture resistance designation).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
MCR03EZPFX1131	Rohm Semiconductor	1.13 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	770 Pcs
MCR03ERTF1131	Rohm Semiconductor	1.13 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued	716 Pcs
CRCW06031K13FKEA	Vishay Dale	1.13 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	45400 Pcs
ERJ-3EKF1131V	Panasonic Electronic Components	1.13 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	123480 Pcs
RMCF0603FT1K13	Stackpole Electronics Inc	1.13 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	181124 Pcs
CR0603-FX-1131ELF	Bourns Inc.	1.13 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	83712 Pcs
RC0603FR-071K13L	YAGEO	1.13 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	311583 Pcs
RC1608F1131CS	Samsung Electro-Mechanics	1.13 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	1301 Pcs

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive qualification, select from the following active parts: CRCW06031K13FKEA (Vishay Dale), ERJ-3EKF1131V (Panasonic Electronic Components), or RMCF0603FT1K13 (Stackpole Electronics Inc). All three maintain full AEC-Q200 compliance and are currently in active production status with substantial inventory availability.

For non-automotive applications or where AEC-Q200 certification is not required, CR0603-FX-1131ELF (Bourns Inc.), RC0603FR-071K13L (YAGEO), and RC1608F1131CS (Samsung Electro-Mechanics) are functionally equivalent alternatives with active product status. These parts meet RoHS3 compliance and MSL 1 requirements.

MCR03ERTF1131 from Rohm Semiconductor is a direct manufacturer equivalent but is discontinued, making it unsuitable for new designs despite remaining inventory.

Frequently Asked Questions (FAQ)

Q: Can I substitute MCR03EZPFX1131 with any of the listed parts?

A: Yes, all listed parts are functionally equivalent based on resistance value, tolerance, power rating, package type, temperature coefficient, and operating temperature range. Selection should be based on product status (active vs. discontinued), AEC-Q200 requirement, and inventory availability.

Q: What is the difference between Direct Manufacturer equivalents and Similar parts?

A: Direct Manufacturer equivalents (MCR03ERTF1131, CRCW06031K13FKEA, ERJ-3EKF1131V, RMCF0603FT1K13) meet all specified parameters identically. Similar parts (CR0603-FX-1131ELF, RC0603FR-071K13L, RC1608F1131CS) are functionally equivalent but may have additional features such as moisture resistance designation or lack AEC-Q200 certification.

Q: Is AEC-Q200 certification required for my application?

A: AEC-Q200 certification is mandatory for automotive applications. If your design is for automotive use, select CRCW06031K13FKEA, ERJ-3EKF1131V, or RMCF0603FT1K13. For non-automotive applications, all listed parts are acceptable.

Q: Are there any dimensional differences between substitute parts?

A: All parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within standard tolerances: length ranges from 0.061" to 0.063" (1.55mm to 1.60mm), width from 0.031" to 0.033" (0.80mm to 0.85mm), and height from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within PCB design tolerances and do not affect interchangeability.

Q: Which substitute part has the best inventory availability?

A: RC0603FR-071K13L (YAGEO) has the highest inventory at 311,583 pieces, followed by RMCF0603FT1K13 (Stackpole Electronics Inc) at 181,124 pieces and ERJ-3EKF1131V (Panasonic Electronic Components) at 123,480 pieces.

Q: Can I use MCR03ERTF1131 as a substitute?

A: MCR03ERTF1131 is a direct manufacturer equivalent from Rohm Semiconductor but is discontinued at DiGi Electronics. While functionally identical, active alternatives are preferred for new designs and long-term supply chain stability.

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