MCR03EZPFX1151 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1151 is a 1.15 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	1.15 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 MCR03EZPFX1151 is determined by strict equivalence across the following parameters:

Resistance value: 1.15 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
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1

Substitute parts are classified into two categories:

Direct Substitutes maintain full automotive AEC-Q200 certification and are functionally identical to the original part.

Similar Substitutes meet all electrical and mechanical parameters but feature moisture-resistant construction instead of automotive AEC-Q200 rating. These are suitable for applications where automotive qualification is not required.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	Product Status
MCR03EZPFX1151	Rohm Semiconductor	1.15 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued
MCR03ERTF1151	Rohm Semiconductor	1.15 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued
CRCW06031K15FKEA	Vishay Dale	1.15 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active
ERJ-3EKF1151V	Panasonic Electronic Components	1.15 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active
RMCF0603FT1K15	Stackpole Electronics Inc	1.15 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active
CR0603-FX-1151ELF	Bourns Inc.	1.15 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active
RC0603FR-071K15L	YAGEO	1.15 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 certification, select from active direct substitutes: CRCW06031K15FKEA (Vishay Dale), ERJ-3EKF1151V (Panasonic Electronic Components), or RMCF0603FT1K15 (Stackpole Electronics Inc). All three maintain full compliance with automotive qualification standards and are currently in active production with established inventory availability.

For non-automotive applications where AEC-Q200 certification is not required, CR0603-FX-1151ELF (Bourns Inc.) and RC0603FR-071K15L (YAGEO) provide active alternatives with moisture-resistant construction. These parts meet all electrical and mechanical specifications while offering superior availability.

MCR03ERTF1151 (Rohm Semiconductor) is a direct electrical equivalent but is also discontinued, making it unsuitable as a long-term replacement source.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different AEC-Q200 status in an automotive application?

A: No. If your application requires automotive AEC-Q200 certification, only use substitute parts explicitly rated for AEC-Q200: CRCW06031K15FKEA, ERJ-3EKF1151V, or RMCF0603FT1K15. Parts without this certification do not meet automotive qualification requirements.

Q: Are all substitute parts pin-compatible with the MCR03EZPFX1151?

A: Yes. All substitute parts use the 0603 (1608 Metric) package with 2 terminations, ensuring mechanical and electrical compatibility on the PCB.

Q: What is the difference between moisture-resistant and AEC-Q200 rated resistors?

A: Moisture-resistant construction provides enhanced protection against humidity exposure. AEC-Q200 certification indicates the part meets automotive industry qualification standards including temperature cycling, humidity, and reliability testing. Select based on your application requirements.

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

A: Yes. All substitute parts meet identical electrical specifications (1.15 kΩ ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C). Mixing manufacturers is acceptable provided all parts meet your application's certification requirements.

Q: Why is the MCR03EZPFX1151 discontinued?

A: The part is discontinued at DiGi Electronics. Equivalent alternatives from active manufacturers provide identical performance and are recommended for new designs and ongoing production.

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