MCR03EZPFX1201 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1201 is a 1.2 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	1.2 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
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX1201 is determined by strict equivalence across the following parameters:

Resistance value: 1.2 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
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: 1 (Unlimited)

All substitute parts listed meet these core electrical and mechanical specifications. Parts are categorized as Direct Manufacturer equivalents (functionally identical across all specified parameters) or Similar parts (meeting all core specifications with minor feature variations such as moisture resistance enhancements).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
MCR03EZPFX1201	Rohm Semiconductor	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	935 Pcs
MCR03ERTF1201	Rohm Semiconductor	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	No	Discontinued	648 Pcs
CRCW06031K20FKEA	Vishay Dale	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	76091 Pcs
CRCW06031K20FKEB	Vishay Dale	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	20580 Pcs
CRG0603F1K2	TE Connectivity Passive Product	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	No	Active	30432 Pcs
ERJ-3EKF1201V	Panasonic Electronic Components	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	147252 Pcs
RMCF0603FT1K20	Stackpole Electronics Inc	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	129625 Pcs
AC0603FR-071K2L	YAGEO	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	16425 Pcs
CR0603-FX-1201ELF	Bourns Inc.	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	No	Active	188245 Pcs
RC0603FR-071K2L	YAGEO	1.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	No	Active	8887 Pcs

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive qualification, select from parts with active product status and confirmed AEC-Q200 rating: ERJ-3EKF1201V (Panasonic), RMCF0603FT1K20 (Stackpole), CRCW06031K20FKEA (Vishay Dale), or AC0603FR-071K2L (YAGEO). These parts maintain full compliance with automotive standards and offer superior inventory availability.

For non-automotive applications or where AEC-Q200 is not required, CRG0603F1K2 (TE Connectivity), CR0603-FX-1201ELF (Bourns), and RC0603FR-071K2L (YAGEO) provide equivalent electrical performance with active product status.

CRCW06031K20FKEA is the preferred direct substitute when AEC-Q200 compliance is mandatory, offering the highest inventory level (76091 Pcs) among qualified alternatives.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTF1201 replace MCR03EZPFX1201?

A: MCR03ERTF1201 meets all core electrical specifications (1.2 kΩ, ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C). However, it lacks AEC-Q200 automotive certification. Use only in non-automotive applications or where automotive qualification is not required.

Q: What is the difference between Direct and Similar substitute classifications?

A: Direct substitutes meet all specified parameters identically. Similar substitutes meet all core electrical and mechanical parameters but may include additional features (such as moisture resistance) not present in the original part. Both are functionally equivalent for the specified application parameters.

Q: Are all listed substitutes compatible with 0603 package footprints?

A: All substitutes use the 0603 (1608 Metric) package. Physical dimensions vary slightly between manufacturers (length 1.55mm to 1.60mm, width 0.80mm to 0.85mm, height 0.50mm to 0.55mm), but all fit standard 0603 PCB footprints.

Q: Which substitute has the best availability?

A: CR0603-FX-1201ELF (Bourns) has the highest inventory at 188245 Pcs. For AEC-Q200 qualified parts, CRCW06031K20FKEA (Vishay Dale) offers 76091 Pcs.

Q: Do all substitutes have the same moisture sensitivity level?

A: All listed parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can I use non-AEC-Q200 parts in automotive designs?

A: AEC-Q200 certification is a requirement for automotive applications. Use only parts with confirmed AEC-Q200 rating for automotive designs. Non-qualified parts are suitable only for consumer or industrial applications.

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