MCR03EZPFX1004 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1004 is a 1 MOhm ±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 operating temperature range of -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for continued design support and production continuity.

Key Parameters

Parameter	Specification
Resistance Value	1 MOhm
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 to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for MCR03EZPFX1004 are classified based on strict equivalence of the following critical parameters:

Mandatory Equivalence Parameters:

Resistance Value: 1 MOhm
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 to 155°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Direct Substitutes maintain all mandatory parameters and are functionally interchangeable. These parts differ only in manufacturer, series designation, or packaging format (Cut Tape vs. Tape & Reel).

Upgrade Substitutes exceed the original specifications in tolerance (±0.5% vs. ±1%) or feature enhancements (High Voltage capability) while maintaining all other mandatory parameters. These provide enhanced performance characteristics suitable for applications requiring tighter tolerance control.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	AEC-Q200	Product Status	Packaging Format
MCR03EZPFX1004	Rohm Semiconductor	1 MOhm	±1%	0.1	±100	-55 to 155	0603	Yes	Discontinued	Bulk
KTR03EZPF1004	Rohm Semiconductor	1 MOhm	±1%	0.1	±100	-55 to 155	0603	Yes	Active	Tape & Reel
CRCW06031M00FKEA	Vishay Dale	1 MOhm	±1%	0.1	±100	-55 to 155	0603	Yes	Active	Cut Tape & Digi-Reel
CRCW06031M00FKEB	Vishay Dale	1 MOhm	±1%	0.1	±100	-55 to 155	0603	Yes	Discontinued	Tape & Reel
CRCW06031M00FKEC	Vishay Dale	1 MOhm	±1%	0.1	±100	-55 to 155	0603	Yes	Active	Tape & Reel
ERJ-3EKF1004V	Panasonic Electronic Components	1 MOhm	±1%	0.1	±100	-55 to 155	0603	Yes	Active	Cut Tape & Digi-Reel
RC0603FR-071ML	YAGEO	1 MOhm	±1%	0.1	±100	-55 to 155	0603	No	Active	Cut Tape & Digi-Reel
RCG06031M00FKEA	Vishay Dale	1 MOhm	±1%	0.1	±100	-55 to 155	0603	No	Active	Tape & Reel
RMCF0603FG1M00	Stackpole Electronics Inc	1 MOhm	±1%	0.1	±100	-55 to 155	0603	Yes	Active	Cut Tape
RMCF0603FT1M00	Stackpole Electronics Inc	1 MOhm	±1%	0.1	±100	-55 to 155	0603	Yes	Active	Cut Tape & Digi-Reel
CRCW06031M00DHEAP	Vishay Dale	1 MOhm	±0.5%	0.1	±50	-55 to 155	0603	Yes	Active	Tape & Reel

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents - Active Status):

For applications requiring direct replacement with active product availability and AEC-Q200 automotive qualification, select from:

RMCF0603FT1M00 (Stackpole Electronics Inc) - Highest inventory availability (1,725,705 pcs), Cut Tape & Digi-Reel packaging
CRCW06031M00FKEC (Vishay Dale) - High inventory (90,734 pcs), Tape & Reel packaging
ERJ-3EKF1004V (Panasonic Electronic Components) - Largest inventory (284,657 pcs), Cut Tape & Digi-Reel packaging

All three maintain identical electrical specifications and AEC-Q200 compliance with the original MCR03EZPFX1004.

Secondary Substitutes (Active Status, Non-AEC-Q200):

For applications where automotive AEC-Q200 qualification is not required:

RC0603FR-071ML (YAGEO) - Moisture resistant variant, 50,200 pcs available
RCG06031M00FKEA (Vishay Dale) - Standard thick film, 37,798 pcs available

Upgrade Option (Enhanced Tolerance):

For applications requiring tighter tolerance control:

CRCW06031M00DHEAP (Vishay Dale) - ±0.5% tolerance (vs. ±1%), ±50ppm/°C temperature coefficient (vs. ±100ppm/°C), maintains AEC-Q200 compliance and 0603 package

Avoid:

CRCW06031M00FKEB (Vishay Dale) - Discontinued at DiGi Electronics despite active manufacturer status
KTR03EZPF1004 (Rohm Semiconductor) - Limited inventory (60,389 pcs) relative to primary alternatives

Frequently Asked Questions (FAQ)

Q: Can I use RC0603FR-071ML as a direct replacement for MCR03EZPFX1004?

A: RC0603FR-071ML matches all electrical parameters (1 MOhm, ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C) and package specifications. However, it lacks AEC-Q200 automotive qualification. Use only in non-automotive applications or where automotive qualification is not contractually required.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Both formats contain identical components. Cut Tape & Digi-Reel packaging is suitable for automated pick-and-place assembly with standard reel equipment. Tape & Reel (TR) uses continuous reel format. Selection depends on production equipment compatibility and order quantity requirements.

Q: Is CRCW06031M00DHEAP a suitable upgrade?

A: Yes. CRCW06031M00DHEAP provides tighter tolerance (±0.5% vs. ±1%) and lower temperature coefficient (±50ppm/°C vs. ±100ppm/°C) while maintaining identical resistance value, power rating, package, and AEC-Q200 compliance. It is suitable for applications requiring improved accuracy and stability.

Q: Why is KTR03EZPF1004 listed as an upgrade despite identical electrical specifications?

A: KTR03EZPF1004 includes High Voltage feature designation in addition to standard AEC-Q200 automotive qualification. This represents enhanced capability for high-voltage circuit applications while maintaining all other specifications identical to MCR03EZPFX1004.

Q: Which substitute has the best inventory availability?

A: RMCF0603FT1M00 (Stackpole Electronics Inc) has the highest inventory at 1,725,705 pieces with Cut Tape & Digi-Reel packaging, AEC-Q200 compliance, and identical electrical specifications to the original part.

Q: Are all substitutes ROHS3 compliant?

A: All listed substitutes are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the original MCR03EZPFX1004 environmental compliance profile.

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