MCR03EZPFX78R7 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX78R7 is a 78.7 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	78.7 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
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX78R7 is determined by strict equivalence across the following critical parameters:

Resistance value: 78.7 Ohms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Termination count: 2
RoHS3 compliance

All substitute parts listed meet these electrical and mechanical specifications. Parts are grouped by manufacturer and product status (Active vs. Discontinued). The YAGEO RC0603FR-0778R7L is classified as a similar part due to its moisture-resistant feature rather than automotive AEC-Q200 certification, but maintains full electrical and mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
MCR03EZPFX78R7	Rohm Semiconductor	78.7 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	719 Pcs
MCR03ERTF78R7	Rohm Semiconductor	78.7 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued	2764 Pcs
CRCW060378R7FKEA	Vishay Dale	78.7 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	16158 Pcs
ERJ-3EKF78R7V	Panasonic Electronic Components	78.7 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	46057 Pcs
RMCF0603FT78R7	Stackpole Electronics Inc	78.7 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	1113 Pcs
RC0603FR-0778R7L	YAGEO	78.7 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	89602 Pcs

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 certification, select from the following active parts: CRCW060378R7FKEA (Vishay Dale), ERJ-3EKF78R7V (Panasonic Electronic Components), or RMCF0603FT78R7 (Stackpole Electronics Inc). All three maintain full AEC-Q200 compliance equivalent to the original MCR03EZPFX78R7.

For non-automotive applications where AEC-Q200 certification is not required, RC0603FR-0778R7L (YAGEO) offers the highest inventory availability at 89602 pieces and maintains all electrical and mechanical specifications with moisture-resistant thick film composition.

The MCR03ERTF78R7 (Rohm Semiconductor) is electrically equivalent but lacks AEC-Q200 certification and is discontinued, making it suitable only for legacy applications where original manufacturer continuity is required.

Frequently Asked Questions (FAQ)

Q: Can I substitute MCR03EZPFX78R7 with any of the listed parts? A: All listed parts are electrically and mechanically equivalent with identical resistance, tolerance, power rating, package, and operating temperature specifications. Selection depends on your application requirements regarding automotive certification and product availability.

Q: What is the difference between direct and similar substitutes? A: Direct substitutes (MCR03ERTF78R7, CRCW060378R7FKEA, ERJ-3EKF78R7V, RMCF0603FT78R7) meet all electrical and mechanical parameters. RC0603FR-0778R7L is classified as similar because it lacks AEC-Q200 automotive certification but maintains full electrical compatibility.

Q: Does package size differ between substitutes? A: All parts use the 0603 (1608 Metric) package. Minor dimensional variations exist (length 0.061" to 0.063", width 0.031" to 0.033", height 0.020" to 0.022") but remain within standard 0603 package tolerances and are PCB-compatible.

Q: Which substitute has the best availability? A: RC0603FR-0778R7L (YAGEO) has the highest inventory at 89602 pieces. For AEC-Q200 certified alternatives, ERJ-3EKF78R7V (Panasonic) offers 46057 pieces in stock.

Q: Are all substitutes RoHS3 compliant? A: Yes, all listed parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: Can I use RC0603FR-0778R7L in automotive applications? A: RC0603FR-0778R7L lacks AEC-Q200 certification. For automotive applications, use CRCW060378R7FKEA, ERJ-3EKF78R7V, or RMCF0603FT78R7 instead.

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