MCR03EZPFX2321 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX2321 is a 2.32 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	2.32 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 to 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MCR03EZPFX2321 is determined by strict equivalence across the following critical parameters:

Resistance value: 2.32 kOhms
Tolerance: ±1%
Power rating: 0.1W
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS3 compliance
MSL rating: 1

Substitute parts are categorized as follows:

Direct Substitutes (Automotive AEC-Q200 rated): CRCW06032K32FKEA (Vishay Dale), ERJ-3EKF2321V (Panasonic Electronic Components), and RMCF0603FT2K32 (Stackpole Electronics Inc) meet all electrical and mechanical specifications with active product status and automotive certification.

Similar Substitutes (Moisture Resistant, non-automotive rated): CR0603-FX-2321ELF (Bourns Inc.) and RC0603FR-072K32L (YAGEO) match all core electrical parameters and package specifications but feature moisture-resistant construction without AEC-Q200 automotive rating.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Features	Product Status	RoHS3
MCR03EZPFX2321	Rohm Semiconductor	2.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Automotive AEC-Q200	Discontinued	Yes
CRCW06032K32FKEA	Vishay Dale	2.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Automotive AEC-Q200	Active	Yes
ERJ-3EKF2321V	Panasonic Electronic Components	2.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Automotive AEC-Q200	Active	Yes
RMCF0603FT2K32	Stackpole Electronics Inc	2.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Automotive AEC-Q200	Active	Yes
CR0603-FX-2321ELF	Bourns Inc.	2.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Moisture Resistant	Active	Yes
RC0603FR-072K32L	YAGEO	2.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Moisture Resistant	Active	Yes

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 compliance, select from the direct substitutes: CRCW06032K32FKEA, ERJ-3EKF2321V, or RMCF0603FT2K32. All three maintain active product status with full automotive certification equivalence to the discontinued MCR03EZPFX2321.

For non-automotive applications or where moisture-resistant construction is specified, CR0603-FX-2321ELF and RC0603FR-072K32L provide electrical and mechanical equivalence with active availability. These parts lack automotive AEC-Q200 rating and should not be used as substitutes in automotive designs.

Selection among direct substitutes should prioritize availability and supply chain lead times, as all three options are electrically and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can CR0603-FX-2321ELF or RC0603FR-072K32L be used in automotive applications?

A: No. These parts lack AEC-Q200 automotive certification. They are suitable only for non-automotive applications. For automotive designs, use CRCW06032K32FKEA, ERJ-3EKF2321V, or RMCF0603FT2K32.

Q: Are all direct substitutes pin-compatible with the MCR03EZPFX2321?

A: Yes. All direct substitutes use the 0603 (1608 Metric) package with 2 terminations and identical footprint dimensions, ensuring direct PCB compatibility.

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

A: Direct substitutes (CRCW06032K32FKEA, ERJ-3EKF2321V, RMCF0603FT2K32) carry AEC-Q200 automotive certification matching the original part. Similar substitutes (CR0603-FX-2321ELF, RC0603FR-072K32L) match electrical and mechanical specifications but feature moisture-resistant construction without automotive rating.

Q: Do all substitutes meet RoHS3 compliance?

A: Yes. All listed substitute parts are RoHS3 compliant with MSL rating of 1 (Unlimited).

Q: Which substitute has the highest inventory availability?

A: RMCF0603FT2K32 from Stackpole Electronics Inc has the highest reported inventory at 1,242,194 pieces.

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