MCR03EZPFX2101 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX2101 is a 2.1 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	2.1 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 MCR03EZPFX2101 is determined by strict equivalence across the following parameters:

Resistance value: 2.1 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 electrical and mechanical specifications. Direct substitutes maintain identical AEC-Q200 automotive ratings. Similar substitutes meet all core electrical parameters and RoHS compliance but may have variations in specific features such as moisture resistance designation.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Product Status	Packaging Type
MCR03EZPFX2101	Rohm Semiconductor	2.1 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Discontinued	-
CRCW06032K10FKEA	Vishay Dale	2.1 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	Tape & Reel
ERJ-3EKF2101V	Panasonic Electronic Components	2.1 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	Tape & Reel
RMCF0603FT2K10	Stackpole Electronics Inc	2.1 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	Tape & Reel
AC0603FR-072K1L	YAGEO	2.1 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	Tape & Reel
CR0603-FX-2101ELF	Bourns Inc.	2.1 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Active	Tape & Reel
RC0603FR-072K1L	YAGEO	2.1 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Active	Cut Tape & Digi-Reel
RC1608F2101CS	Samsung Electro-Mechanics	2.1 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Active	Cut Tape

Engineering Selection Recommendations

For applications requiring strict AEC-Q200 automotive compliance, direct substitutes CRCW06032K10FKEA (Vishay Dale), ERJ-3EKF2101V (Panasonic Electronic Components), and RMCF0603FT2K10 (Stackpole Electronics Inc) are preferred. All three maintain active product status with high inventory availability and identical automotive ratings to the original MCR03EZPFX2101.

For non-automotive or less stringent applications, similar substitutes AC0603FR-072K1L, CR0603-FX-2101ELF, RC0603FR-072K1L, and RC1608F2101CS provide electrical equivalence with ROHS3 compliance. These parts meet all core electrical specifications but lack explicit AEC-Q200 designation or automotive-specific features.

Packaging format selection depends on assembly requirements: Tape & Reel packaging is standard for high-volume production, while Cut Tape options are suitable for lower-volume or maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part not listed as AEC-Q200 rated in an automotive application?

A: No. AEC-Q200 certification is a specific automotive qualification standard. Parts without this rating should not be used in applications requiring automotive compliance unless explicitly approved by your quality or engineering department.

Q: What is the difference between Direct and Similar substitutes?

A: Direct substitutes maintain identical AEC-Q200 automotive ratings and all specified features. Similar substitutes meet electrical and mechanical parameters but may lack automotive certification or specific feature designations such as moisture resistance.

Q: Are there dimensional differences between substitute parts?

A: All listed substitutes use the 0603 (1608 Metric) package. Minor dimensional variations exist within tolerance (for example, length ranges from 0.061" to 0.063" and height from 0.020" to 0.022"), but these fall within standard PCB design tolerances and do not affect footprint compatibility.

Q: Does packaging type (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging type affects only handling, storage, and assembly logistics. Electrical and mechanical specifications remain identical regardless of packaging format.

Q: Can I mix different substitute manufacturers in the same production batch?

A: Yes, provided all parts meet the specified electrical parameters, tolerance, power rating, and compliance requirements. However, maintaining single-source parts per design revision is recommended for traceability and quality control purposes.

Q: What does Moisture Sensitivity Level 1 mean?

A: MSL 1 indicates unlimited shelf life without moisture control requirements. The component can be stored and handled without special desiccant packaging or humidity-controlled environments.

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