MCR03EZPFX68R0 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX68R0 is a 68 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 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 to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX68R0 is determined by strict equivalence across the following parameters: resistance value (68 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (AEC-Q200, ROHS3, REACH Unaffected).

Parts are classified into two categories:

Direct Equivalents maintain all electrical and mechanical specifications identical to the main part, differing only in manufacturer, series designation, or packaging format (tape & reel vs. cut tape).

Similar Parts meet all core electrical specifications and package requirements but may have minor dimensional variations within acceptable tolerances or differ in secondary features such as moisture resistance designation.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	RoHS3	Product Status
MCR03EZPFX68R0	Rohm Semiconductor	68 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Yes	Discontinued
CRCW060368R0FKEA	Vishay Dale	68 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Yes	Active
CRCW060368R0FKEB	Vishay Dale	68 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Yes	Discontinued
ERJ-3EKF68R0V	Panasonic Electronic Components	68 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Yes	Active
RMCF0603FT68R0	Stackpole Electronics Inc	68 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Yes	Active
AC0603FR-0768RL	YAGEO	68 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Yes	Active
CR0603-FX-68R0ELF	Bourns Inc.	68 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	No	Yes	Active
RC0603FR-0768RL	YAGEO	68 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	No	Yes	Active

Engineering Selection Recommendations

For applications requiring strict AEC-Q200 automotive compliance, select from the following active parts: ERJ-3EKF68R0V (Panasonic), RMCF0603FT68R0 (Stackpole), CRCW060368R0FKEA (Vishay Dale), or AC0603FR-0768RL (YAGEO). These parts maintain full electrical equivalence and automotive qualification.

For non-automotive applications or where AEC-Q200 certification is not mandatory, CR0603-FX-68R0ELF (Bourns) and RC0603FR-0768RL (YAGEO) provide equivalent electrical performance with active product status and ROHS3 compliance.

CRCW060368R0FKEA is recommended as the primary substitute due to active product status, full AEC-Q200 compliance, and high inventory availability (5300 units). ERJ-3EKF68R0V and RMCF0603FT68R0 offer superior inventory depth (262,688 and 251,555 units respectively) for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTF6800 substitute for MCR03EZPFX68R0?

A: No. MCR03ERTF6800 has a resistance value of 680 Ohms, which differs from the required 68 Ohms. Resistance value is a non-negotiable substitution parameter.

Q: What is the difference between CRCW060368R0FKEA and CRCW060368R0FKEB?

A: Both parts are electrically and mechanically identical with 68 Ohm ±1% specifications in 0603 package. The difference is in packaging designation (FKEA vs. FKEB). FKEA is currently active, while FKEB is discontinued. CRCW060368R0FKEA is the recommended choice for new designs.

Q: Are CR0603-FX-68R0ELF and RC0603FR-0768RL suitable for automotive applications?

A: These parts do not carry AEC-Q200 certification. They are suitable for non-automotive applications or applications where automotive qualification is not required. For automotive use, select parts with explicit AEC-Q200 rating.

Q: Do all substitute parts have the same physical dimensions?

A: All parts share the 0603 (1608 Metric) package designation. Minor dimensional variations exist within standard tolerances: length ranges from 0.061" to 0.063" (1.55mm to 1.60mm), width from 0.031" to 0.033" (0.80mm to 0.85mm), and height from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within PCB design tolerances for 0603 components.

Q: Which substitute offers the best inventory availability?

A: ERJ-3EKF68R0V (Panasonic) provides the highest inventory with 262,688 units in stock, followed by RMCF0603FT68R0 (Stackpole) with 251,555 units. Both are active products with full AEC-Q200 compliance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the environmental compliance of the original MCR03EZPFX68R0.

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