MCR03EZPFX3001 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX3001 is a 3 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, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Resistance	3 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 to 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX3001 is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (3 kOhms), tolerance (±1%), power rating (0.1W), and temperature coefficient (±100ppm/°C) must be identical
Package Compatibility: 0603 (1608 Metric) package with 2 terminations is mandatory for PCB layout and assembly compatibility
Environmental Ratings: Operating temperature range (-55°C to 155°C) and RoHS3 compliance must be maintained
Composition: Thick film construction ensures consistent electrical behavior

Substitute parts are classified into two categories:

Direct Substitutes maintain all electrical and mechanical parameters with identical or compatible physical dimensions and certifications. These parts are interchangeable without design modification.

Similar Substitutes meet all electrical specifications and package requirements but may include additional features (anti-sulfur coating, moisture resistance) or differ in specific dimensional tolerances. These parts are functionally equivalent for the specified application parameters.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	AEC-Q200	Product Status	Inventory
MCR03EZPFX3001	Rohm Semiconductor	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	877 Pcs
CRCW06033K00FKEA	Vishay Dale	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	1970 Pcs
CRCW06033K00FKEB	Vishay Dale	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	37862 Pcs
ERJ-3EKF3001V	Panasonic Electronic Components	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	131792 Pcs
RC0603FR-073KL	YAGEO	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	25200 Pcs
RMCF0603FT3K00	Stackpole Electronics Inc	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	2473336 Pcs
CR0603-FX-3001ELF	Bourns Inc.	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	40183 Pcs
CRG0603F3K0	TE Connectivity Passive Product	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	19496 Pcs
ERJ-S03F3001V	Panasonic Electronic Components	3 kOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	10840 Pcs

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents with Active Status)

RMCF0603FT3K00 (Stackpole Electronics Inc) is the recommended primary substitute. This part maintains full electrical and mechanical equivalence with AEC-Q200 certification and active product status. Inventory availability of 2,473,336 units ensures supply chain continuity.

ERJ-3EKF3001V (Panasonic Electronic Components) serves as an alternative direct substitute with AEC-Q200 certification and active status. Inventory of 131,792 units supports production requirements.

Secondary Substitutes (Direct Equivalents with Discontinued Status)

CRCW06033K00FKEB (Vishay Dale) meets all electrical and mechanical specifications with AEC-Q200 certification. Although discontinued at DiGi Electronics, substantial inventory of 37,862 units remains available.

Tertiary Substitutes (Active Status, Non-AEC-Q200)

CRCW06033K00FKEA (Vishay Dale) is active and meets all electrical specifications. This part lacks AEC-Q200 certification but maintains full parameter equivalence for non-automotive applications.

RC0603FR-073KL (YAGEO) is active with moisture-resistant thick film composition. Absence of AEC-Q200 certification limits use to non-automotive designs.

CR0603-FX-3001ELF (Bourns Inc.) and CRG0603F3K0 (TE Connectivity) are active alternatives without AEC-Q200 certification, suitable for general-purpose applications.

Special Feature Substitute

ERJ-S03F3001V (Panasonic Electronic Components) includes anti-sulfur coating in addition to AEC-Q200 certification and active status. This part is appropriate for environments requiring enhanced corrosion resistance.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different tolerance?

A: No. The MCR03EZPFX3001 specifies ±1% tolerance. All substitute parts must maintain this tolerance to ensure circuit performance and compliance with design specifications.

Q: What is the significance of AEC-Q200 certification?

A: AEC-Q200 certification indicates the part meets automotive-grade reliability standards including thermal cycling, moisture resistance, and failure rate requirements. For automotive applications, AEC-Q200 certification is mandatory. For non-automotive designs, parts without this certification are acceptable if other parameters match.

Q: Are dimensional differences between substitute parts critical?

A: Physical dimensions (length, width, height) are provided for reference but do not affect substitution eligibility when all parts conform to the 0603 (1608 Metric) package standard. PCB footprints and assembly processes are standardized for this package size.

Q: Why is product status important in selecting a substitute?

A: Active products ensure ongoing availability and manufacturer support. Discontinued parts may have limited remaining inventory and no future supply. For long-term production, active substitutes are preferred.

Q: Can I substitute a part with additional features like anti-sulfur coating?

A: Yes. Parts with additional features (anti-sulfur, moisture resistance) are functionally equivalent and provide enhanced performance. These substitutions do not compromise circuit operation.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in Cut Tape (CT) & Digi-Reel or Tape & Reel (TR) packaging. Packaging selection depends on assembly process requirements and does not affect electrical performance.

Q: Is RoHS3 compliance maintained across all substitutes?

A: All listed substitute parts maintain ROHS3 compliance, ensuring environmental and regulatory conformance equivalent to the original MCR03EZPFX3001.

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