MCR03EZPFX7503 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX7503 is a 750 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	750 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 for the MCR03EZPFX7503 is determined by strict equivalence across the following parameters:

Resistance value: 750 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 grouped into three categories based on product status and feature alignment:

Direct Substitutes (Equivalent Features): Parts with identical electrical specifications and automotive AEC-Q200 certification.

Upgrade Substitute (Enhanced Features): Parts meeting all electrical requirements with additional high-voltage capability designation.

Similar Substitutes (Functional Equivalence): Parts meeting all electrical specifications with moisture-resistant features but without automotive AEC-Q200 certification.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
MCR03EZPFX7503	Rohm Semiconductor	750 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	1190 Pcs
MCR03ERTF7503	Rohm Semiconductor	750 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued	1482 Pcs
KTR03EZPF7503	Rohm Semiconductor	750 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	1769 Pcs
CRCW0603750KFKEA	Vishay Dale	750 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	1460 Pcs
ERJ-3EKF7503V	Panasonic Electronic Components	750 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	49778 Pcs
RMCF0603FT750K	Stackpole Electronics Inc	750 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	259100 Pcs
CR0603-FX-7503ELF	Bourns Inc.	750 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	48769 Pcs
RC0603FR-07750KL	YAGEO	750 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	406668 Pcs

Engineering Selection Recommendations

For Automotive AEC-Q200 Applications:

Select from KTR03EZPF7503 (Rohm Semiconductor, active status), CRCW0603750KFKEA (Vishay Dale, active status), ERJ-3EKF7503V (Panasonic Electronic Components, active status), or RMCF0603FT750K (Stackpole Electronics Inc, active status). All four parts maintain full AEC-Q200 compliance and ROHS3 certification. KTR03EZPF7503 offers the advantage of active product status from the original manufacturer with high-voltage capability designation. RMCF0603FT750K provides the highest inventory availability at 259,100 pieces.

For Non-Automotive Applications with Active Status:

CR0603-FX-7503ELF (Bourns Inc.) and RC0603FR-07750KL (YAGEO) are suitable alternatives. Both maintain all electrical specifications and ROHS3 compliance. RC0603FR-07750KL offers exceptional inventory depth at 406,668 pieces. These parts lack AEC-Q200 certification and are not suitable for automotive-grade applications.

For Discontinued Part Replacement:

MCR03ERTF7503 (Rohm Semiconductor) is a direct electrical equivalent but is also discontinued. This part should not be selected for new designs requiring long-term availability.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTF7503 be used as a direct replacement for MCR03EZPFX7503?

A: MCR03ERTF7503 meets all electrical specifications (750 kOhms ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C). However, both parts are discontinued at DiGi Electronics. For new production, select an active-status substitute.

Q: Is KTR03EZPF7503 a suitable upgrade for MCR03EZPFX7503?

A: Yes. KTR03EZPF7503 maintains all electrical parameters and AEC-Q200 automotive certification. It adds high-voltage capability and has active product status, making it suitable for automotive applications requiring long-term supply continuity.

Q: What is the difference between AEC-Q200 certified and non-certified substitutes?

A: AEC-Q200 certification indicates the part meets automotive-grade reliability and qualification standards. Use AEC-Q200 certified parts (KTR03EZPF7503, CRCW0603750KFKEA, ERJ-3EKF7503V, RMCF0603FT750K) for automotive applications. Non-certified parts (CR0603-FX-7503ELF, RC0603FR-07750KL) are suitable only for non-automotive applications.

Q: Are there dimensional differences between substitute parts?

A: All parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within tolerance: 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 standard PCB design tolerances for 0603 components.

Q: Which substitute offers the best inventory availability?

A: RC0603FR-07750KL (YAGEO) has the highest inventory at 406,668 pieces. For AEC-Q200 applications, RMCF0603FT750K (Stackpole Electronics Inc) offers the best availability at 259,100 pieces.

Q: Can CR0603-FX-7503ELF and RC0603FR-07750KL be used in automotive designs?

A: No. These parts lack AEC-Q200 certification and are not qualified for automotive applications. Use only AEC-Q200 certified substitutes for automotive designs.

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