MCR03EZPFX68R1 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX68R1 is a 68.1 Ohm ±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	68.1 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 MCR03EZPFX68R1 is determined by strict equivalence across the following parameters:

Resistance value: 68.1 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
RoHS3 compliance
MSL rating: 1 (Unlimited)

Substitute parts are categorized into two groups:

Direct Substitutes maintain full automotive AEC-Q200 certification and are functionally identical to the original part.

Similar Substitutes meet all electrical and mechanical parameters but feature moisture-resistant composition instead of automotive-specific ratings. These parts are suitable for applications where AEC-Q200 certification is not a requirement.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Packaging Type
MCR03EZPFX68R1	Rohm Semiconductor	68.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	Cut Tape & Digi-Reel
MCR03ERTF68R1	Rohm Semiconductor	68.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued	Cut Tape & Digi-Reel
CRCW060368R1FKEA	Vishay Dale	68.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Cut Tape & Digi-Reel
ERJ-3EKF68R1V	Panasonic Electronic Components	68.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Tape & Reel
RMCF0603FT68R1	Stackpole Electronics Inc	68.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	Tape & Reel
CR0603-FX-68R1ELF	Bourns Inc.	68.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	Tape & Reel
RC0603FR-0768R1L	YAGEO	68.1 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	Tape & Reel

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 certification:

Select from CRCW060368R1FKEA (Vishay Dale), ERJ-3EKF68R1V (Panasonic), or RMCF0603FT68R1 (Stackpole Electronics). All three parts maintain active product status and full automotive compliance. CRCW060368R1FKEA offers the highest inventory availability (3923 pcs). ERJ-3EKF68R1V provides the largest stock position (99040 pcs) and is available in Tape & Reel packaging. RMCF0603FT68R1 is also available in Tape & Reel format with substantial inventory (67557 pcs).

For non-automotive applications where AEC-Q200 is not required:

CR0603-FX-68R1ELF (Bourns) and RC0603FR-0768R1L (YAGEO) are suitable alternatives. Both maintain all electrical and mechanical specifications with moisture-resistant composition. RC0603FR-0768R1L has the largest available inventory (309051 pcs).

For Rohm Semiconductor continuity:

MCR03ERTF68R1 is available as a direct Rohm substitute, though it lacks AEC-Q200 certification. Product status is discontinued at DiGi Electronics with 1045 pcs in stock.

Frequently Asked Questions (FAQ)

Q: Can I substitute MCR03EZPFX68R1 with any of these parts in automotive applications?

A: Only CRCW060368R1FKEA, ERJ-3EKF68R1V, and RMCF0603FT68R1 maintain AEC-Q200 automotive certification. Use these for automotive designs. CR0603-FX-68R1ELF, RC0603FR-0768R1L, and MCR03ERTF68R1 are not AEC-Q200 rated and should not be used in automotive applications requiring this certification.

Q: Are there physical dimension differences between these parts?

A: All parts use the 0603 (1608 Metric) package. Minor dimensional variations exist: CRCW060368R1FKEA measures 0.061" L x 0.033" W with 0.020" max height, while most others measure 0.063" L x 0.031" W with 0.022" max height. These variations are within standard 0603 package tolerances and do not affect PCB layout or assembly.

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

A: Direct substitutes (CRCW060368R1FKEA, ERJ-3EKF68R1V, RMCF0603FT68R1) carry AEC-Q200 automotive certification matching the original part's automotive qualification. Similar substitutes (CR0603-FX-68R1ELF, RC0603FR-0768R1L) meet all electrical and mechanical specifications but feature moisture-resistant composition without automotive certification.

Q: Which substitute has the best availability?

A: RC0603FR-0768R1L (YAGEO) has the highest inventory at 309051 pcs. For AEC-Q200 certified alternatives, ERJ-3EKF68R1V (Panasonic) offers 99040 pcs in stock.

Q: Are all these parts RoHS3 compliant?

A: Yes, all listed parts are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original MCR03EZPFX68R1 specifications.

Q: Does packaging format affect substitution compatibility?

A: Packaging format (Cut Tape & Digi-Reel versus Tape & Reel) affects procurement and handling but not electrical or mechanical compatibility. Select based on your assembly process requirements and inventory management practices.

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