MCR03EZPFX1741 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1741 is a 1.74 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	1.74 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 eligibility for the MCR03EZPFX1741 is determined by the following critical parameters:

Primary Substitution Criteria:

Resistance value: 1.74 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W / 1/10W (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C ~ 155°C (exact match required)

Secondary Substitution Criteria:

RoHS3 compliance (required for environmental regulations)
Moisture Sensitivity Level 1 (required for handling and storage)
AEC-Q200 automotive rating (required for automotive applications)

Parts are grouped into two categories:

Direct Substitutes (Exact Match): Parts meeting all primary and secondary criteria with identical electrical and mechanical specifications.

Similar Substitutes (Functional Equivalents): Parts meeting all primary criteria but with variations in secondary features (such as moisture resistance features or automotive certification status). These parts are electrically and mechanically compatible but may have different application-specific certifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	Product Status	Inventory
MCR03EZPFX1741	Rohm Semiconductor	1.74 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	1074 Pcs
MCR03ERTF1741	Rohm Semiconductor	1.74 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued	1017 Pcs
CRCW06031K74FKEA	Vishay Dale	1.74 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	16080 Pcs
ERJ-3EKF1741V	Panasonic Electronic Components	1.74 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	46960 Pcs
RMCF0603FT1K74	Stackpole Electronics Inc	1.74 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	15791 Pcs
CR0603-FX-1741ELF	Bourns Inc.	1.74 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	19972 Pcs
RC0603FR-071K74L	YAGEO	1.74 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	2200 Pcs
ERJ-3EKF1691V	Panasonic Electronic Components	1.69 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	172967 Pcs

Engineering Selection Recommendations

Recommended Direct Substitutes (Exact Electrical & Mechanical Match with AEC-Q200):

CRCW06031K74FKEA (Vishay Dale) - Active product status with 16,080 units in stock. Maintains AEC-Q200 automotive certification and identical electrical specifications. Recommended for automotive applications requiring uninterrupted supply.
ERJ-3EKF1741V (Panasonic Electronic Components) - Active product status with 46,960 units in stock. Maintains AEC-Q200 automotive certification with highest inventory availability. Recommended as primary substitute for high-volume production.
RMCF0603FT1K74 (Stackpole Electronics Inc) - Active product status with 15,791 units in stock. Maintains AEC-Q200 automotive certification. Recommended as secondary substitute with consistent supply.

Functional Equivalent Substitutes (Exact Electrical & Mechanical Match, Non-Automotive Certification):

CR0603-FX-1741ELF (Bourns Inc.) - Active product status with 19,972 units in stock. Moisture-resistant thick film composition. Suitable for non-automotive applications or where automotive certification is not required.
RC0603FR-071K74L (YAGEO) - Active product status with 2,200 units in stock. Moisture-resistant thick film composition. Limited inventory availability. Suitable for non-automotive applications.

Near-Value Substitute (Resistance Deviation):

ERJ-3EKF1691V (Panasonic Electronic Components) - 1.69 kOhms resistance (2.9% deviation from 1.74 kOhms nominal). Active product status with highest inventory (172,967 units). Use only when 1.74 kOhms exact value is not critical to circuit function and tolerance stack permits 2.9% variance.

Frequently Asked Questions (FAQ)

Q: Can I use ERJ-3EKF1691V as a substitute for MCR03EZPFX1741?

A: ERJ-3EKF1691V has a resistance value of 1.69 kOhms, which deviates 2.9% from the required 1.74 kOhms. This part is electrically and mechanically compatible in package, power rating, tolerance, and temperature specifications. Use only if circuit design permits a 2.9% resistance variance within the overall tolerance stack.

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

A: Direct substitutes (CRCW06031K74FKEA, ERJ-3EKF1741V, RMCF0603FT1K74) maintain AEC-Q200 automotive certification identical to the original part. Similar substitutes (CR0603-FX-1741ELF, RC0603FR-071K74L) meet all electrical and mechanical specifications but lack automotive certification, making them suitable for non-automotive applications only.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and meet environmental regulatory requirements.

Q: Can I mix different manufacturers' parts in the same assembly?

A: Yes. All listed substitutes are electrically and mechanically equivalent within the 0603 package standard. Different manufacturers can be used interchangeably provided the specific part meets your application requirements (automotive certification if needed).

Q: What is Moisture Sensitivity Level 1?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1 rating, requiring standard dry storage conditions but no special moisture control procedures.

Q: Which substitute has the best inventory availability?

A: ERJ-3EKF1691V (Panasonic) has the highest inventory at 172,967 units. For exact 1.74 kOhms value, ERJ-3EKF1741V (Panasonic) offers the best availability at 46,960 units.

Q: Are there dimensional differences between substitutes?

A: Minor dimensional variations exist within 0603 package tolerance. CRCW06031K74FKEA (Vishay) measures 1.55mm x 0.85mm with 0.50mm max height. Other parts measure 1.60mm x 0.80mm with 0.55mm max height. These variations are within standard 0603 package specifications and do not affect PCB assembly compatibility.

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