MCR03EZPFX2050 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX2050 is a 205 Ohms ±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	205 Ohms
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 ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX2050 is determined by strict equivalence across the following parameters: resistance value (205 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All substitute parts listed maintain these core electrical and mechanical specifications.

Substitute parts are grouped into two categories:

Direct Substitutes maintain full automotive AEC-Q200 certification and identical or equivalent dimensional specifications. These parts are MCR03ERTF2050 (Rohm Semiconductor), CRCW0603205RFKEA (Vishay Dale), ERJ-3EKF2050V (Panasonic Electronic Components), and RMCF0603FT205R (Stackpole Electronics Inc).

Similar Substitutes meet all core electrical parameters and package requirements but differ in specific feature designations. CR0603-FX-2050ELF (Bourns Inc.) and RC0603FR-07205RL (YAGEO) are rated for moisture resistance rather than automotive AEC-Q200, though they maintain equivalent electrical performance and thermal characteristics.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package / Case	Composition	Temperature Coefficient	Operating Temperature	AEC-Q200	Product Status
MCR03EZPFX2050	Rohm Semiconductor	205 Ohms	±1%	0.1W	0603 (1608 Metric)	Thick Film	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued
MCR03ERTF2050	Rohm Semiconductor	205 Ohms	±1%	0.1W	0603 (1608 Metric)	Thick Film	±100ppm/°C	-55°C ~ 155°C	No	Discontinued
CRCW0603205RFKEA	Vishay Dale	205 Ohms	±1%	0.1W	0603 (1608 Metric)	Thick Film	±100ppm/°C	-55°C ~ 155°C	Yes	Active
ERJ-3EKF2050V	Panasonic Electronic Components	205 Ohms	±1%	0.1W	0603 (1608 Metric)	Thick Film	±100ppm/°C	-55°C ~ 155°C	Yes	Active
RMCF0603FT205R	Stackpole Electronics Inc	205 Ohms	±1%	0.1W	0603 (1608 Metric)	Thick Film	±100ppm/°C	-55°C ~ 155°C	Yes	Active
CR0603-FX-2050ELF	Bourns Inc.	205 Ohms	±1%	0.1W	0603 (1608 Metric)	Thick Film	±100ppm/°C	-55°C ~ 155°C	No	Active
RC0603FR-07205RL	YAGEO	205 Ohms	±1%	0.1W	0603 (1608 Metric)	Thick Film	±100ppm/°C	-55°C ~ 155°C	No	Active

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 compliance, select from active parts: CRCW0603205RFKEA (Vishay Dale), ERJ-3EKF2050V (Panasonic Electronic Components), or RMCF0603FT205R (Stackpole Electronics Inc). All three maintain current production status and full automotive qualification.

For non-automotive applications where AEC-Q200 certification is not required, CR0603-FX-2050ELF (Bourns Inc.) and RC0603FR-07205RL (YAGEO) are active alternatives with equivalent electrical specifications. RC0603FR-07205RL offers the highest inventory availability at 426,206 pieces.

MCR03ERTF2050 from Rohm Semiconductor is electrically equivalent but is also discontinued, making it unsuitable for new designs requiring long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can MCR03EZPFX2050 be replaced with any of the listed substitutes?

A: Yes, all listed parts meet the core electrical specifications: 205 Ohms ±1% resistance, 0.1W power rating, 0603 package, thick film composition, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Physical dimensions are equivalent across all parts.

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

A: Direct substitutes (MCR03ERTF2050, CRCW0603205RFKEA, ERJ-3EKF2050V, RMCF0603FT205R) maintain automotive AEC-Q200 certification. Similar substitutes (CR0603-FX-2050ELF, RC0603FR-07205RL) are rated for moisture resistance but do not carry AEC-Q200 qualification. Selection depends on application requirements.

Q: Are there dimensional differences between substitute parts?

A: Dimensional variations exist within acceptable tolerances. CRCW0603205RFKEA and RMCF0603FT205R measure 0.061" L x 0.033" W and 0.061" L x 0.031" W respectively, while MCR03EZPFX2050, ERJ-3EKF2050V, CR0603-FX-2050ELF, and RC0603FR-07205RL measure 0.063" L x 0.031" W. Height specifications range from 0.020" to 0.022" maximum. All parts fit standard 0603 footprints.

Q: Which substitute has the best availability?

A: RC0603FR-07205RL (YAGEO) has the highest inventory at 426,206 pieces. ERJ-3EKF2050V (Panasonic) has 77,866 pieces, and CRCW0603205RFKEA (Vishay Dale) has 37,590 pieces available.

Q: Can I use these substitutes in automotive applications?

A: For automotive applications requiring AEC-Q200 compliance, use CRCW0603205RFKEA, ERJ-3EKF2050V, or RMCF0603FT205R. CR0603-FX-2050ELF and RC0603FR-07205RL do not carry AEC-Q200 certification and should not be used in applications where this qualification is mandatory.

Q: Are all substitutes RoHS3 compliant?

A: Yes, all listed substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited).

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