MCR03EZPFX1202 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1202 is a 12 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	12 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 for the MCR03EZPFX1202 is determined by strict equivalence across the following parameters: resistance value (12 kOhms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (RoHS3, REACH Unaffected, EAR99).

Substitute parts are categorized as follows:

Direct Substitutes maintain all electrical and mechanical specifications with AEC-Q200 automotive rating:

CRCW060312K0FKEA (Vishay Dale)
ERJ-3EKF1202V (Panasonic Electronic Components)
RMCF0603FG12K0 (Stackpole Electronics Inc)
RMCF0603FT12K0 (Stackpole Electronics Inc)

Similar Substitutes meet all core electrical and mechanical parameters but differ in specific features or certifications:

CR0603-FX-1202ELF (Bourns Inc.) — Moisture Resistant feature instead of AEC-Q200
CRG0603F12K (TE Connectivity Passive Product) — No specific automotive or moisture resistant designation
RC0603FR-0712KL (YAGEO) — Moisture Resistant feature instead of AEC-Q200

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Features	Product Status
MCR03EZPFX1202	Rohm Semiconductor	12 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Discontinued
CRCW060312K0FKEA	Vishay Dale	12 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
ERJ-3EKF1202V	Panasonic Electronic Components	12 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
RMCF0603FG12K0	Stackpole Electronics Inc	12 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
RMCF0603FT12K0	Stackpole Electronics Inc	12 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
CR0603-FX-1202ELF	Bourns Inc.	12 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
CRG0603F12K	TE Connectivity Passive Product	12 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	None specified	Active
RC0603FR-0712KL	YAGEO	12 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active

Engineering Selection Recommendations

For applications requiring automotive-grade components with AEC-Q200 certification, select from the direct substitutes: CRCW060312K0FKEA, ERJ-3EKF1202V, RMCF0603FG12K0, or RMCF0603FT12K0. All four maintain full compliance with the original MCR03EZPFX1202 specifications and are currently in active production with substantial inventory availability.

For non-automotive applications or where moisture resistance is a primary design requirement, the similar substitutes CR0603-FX-1202ELF and RC0603FR-0712KL provide equivalent electrical performance with moisture-resistant thick film construction. CRG0603F12K is suitable for general-purpose applications where specific automotive or environmental certifications are not required.

All substitute parts maintain RoHS3 compliance, REACH Unaffected status, and EAR99 export classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-1202ELF as a direct replacement for MCR03EZPFX1202 in automotive applications?

A: CR0603-FX-1202ELF meets all electrical and mechanical specifications but is rated for moisture resistance rather than AEC-Q200 automotive qualification. For automotive applications requiring AEC-Q200 certification, use CRCW060312K0FKEA, ERJ-3EKF1202V, RMCF0603FG12K0, or RMCF0603FT12K0 instead.

Q: Are there dimensional differences between the substitute parts?

A: Dimensional variations exist within tolerance. The MCR03EZPFX1202 and ERJ-3EKF1202V share identical dimensions (0.063" L x 0.031" W, 0.022" max height). CRCW060312K0FKEA, RMCF0603FG12K0, RMCF0603FT12K0, CR0603-FX-1202ELF, CRG0603F12K, and RC0603FR-0712KL have slightly different length (0.061" vs 0.063") or height (0.020" vs 0.022" max). All parts fit the 0603 package footprint and are mechanically compatible.

Q: What is the difference between RMCF0603FG12K0 and RMCF0603FT12K0?

A: Both are Stackpole Electronics RMCF series 12 kOhms ±1% 0.1W 0603 resistors with identical electrical specifications and AEC-Q200 rating. The difference lies in packaging: RMCF0603FG12K0 and RMCF0603FT12K0 are both supplied in Tape & Reel format. Selection between them depends on supplier availability and inventory requirements.

Q: Do all substitute parts have the same moisture sensitivity level?

A: All listed parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity concerns during storage or handling.

Q: Which substitute offers the best inventory availability?

A: ERJ-3EKF1202V (Panasonic) has the highest inventory at 356,977 pieces, followed by RMCF0603FT12K0 (Stackpole) at 167,843 pieces. Both are suitable for high-volume production requirements.

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