MCR03EZPFX4751 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX4751 is a 4.75 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, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Resistance	4.75 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 ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX4751 is determined by strict equivalence across the following parameters: resistance value (4.75 kOhms), 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 moisture sensitivity level (MSL 1). Parts are classified as direct substitutes when all electrical and mechanical parameters match exactly. Similar substitutes meet all core electrical and mechanical requirements but may differ in specific certifications or features (such as moisture resistance designation versus automotive AEC-Q200 rating). All identified substitutes maintain compatibility with the original design specifications and PCB footprint requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	RoHS3	MSL	Product Status
MCR03EZPFX4751	Rohm Semiconductor	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Yes	Yes	1	Discontinued
CRCW06034K75FKEA	Vishay Dale	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Yes	Yes	1	Active
CRCW06034K75FKEB	Vishay Dale	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Yes	Yes	1	Discontinued
CRCW06034K75FKTA	Vishay Dale	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Yes	No	1	Active
ERJ-3EKF4751V	Panasonic Electronic Components	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Yes	Yes	1	Active
RMCF0603FG4K75	Stackpole Electronics Inc	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Yes	Yes	1	Active
RMCF0603FT4K75	Stackpole Electronics Inc	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	Yes	Yes	1	Active
CR0603-FX-4751ELF	Bourns Inc.	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	No	Yes	1	Active
RC0603FR-074K75L	YAGEO	4.75 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155°C	No	Yes	1	Active

Engineering Selection Recommendations

For applications requiring strict automotive AEC-Q200 compliance with ROHS3 certification, select from the following active direct substitutes: CRCW06034K75FKEA (Vishay Dale), ERJ-3EKF4751V (Panasonic Electronic Components), RMCF0603FG4K75 (Stackpole Electronics Inc), or RMCF0603FT4K75 (Stackpole Electronics Inc). These parts maintain full electrical and mechanical equivalence with identical compliance certifications.

For applications where AEC-Q200 automotive rating is not mandatory but ROHS3 compliance is required, CR0603-FX-4751ELF (Bourns Inc.) and RC0603FR-074K75L (YAGEO) provide functionally equivalent alternatives with moisture-resistant thick film composition.

CRCW06034K75FKTA (Vishay Dale) is active but does not carry ROHS3 compliance; selection requires verification of design compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the MCR03EZPFX4751?

A: Direct substitutes (CRCW06034K75FKEA, ERJ-3EKF4751V, RMCF0603FG4K75, RMCF0603FT4K75) are electrically and mechanically equivalent and share identical AEC-Q200 and ROHS3 certifications. Similar substitutes (CR0603-FX-4751ELF, RC0603FR-074K75L) meet all core electrical and mechanical specifications but lack AEC-Q200 automotive certification. Selection depends on your design's compliance requirements.

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

A: Direct substitutes match all parameters including automotive AEC-Q200 rating and ROHS3 compliance. Similar substitutes meet resistance, tolerance, power rating, package, temperature coefficient, and operating temperature specifications but are designated as moisture-resistant rather than automotive-rated. Both categories maintain identical 0603 package footprint compatibility.

Q: Are there any dimensional differences between these parts?

A: All parts use the 0603 (1608 Metric) package with standard PCB footprint compatibility. Minor variations exist in seated height (0.020" to 0.022") and length/width dimensions (1.55mm to 1.60mm length, 0.80mm to 0.85mm width), which do not affect PCB assembly or electrical performance.

Q: Which substitute has the highest inventory availability?

A: RMCF0603FT4K75 (Stackpole Electronics Inc) has 834,506 pieces in stock, followed by ERJ-3EKF4751V (Panasonic Electronic Components) with 870,867 pieces. Both are active products with robust supply availability.

Q: Do all substitutes maintain the same temperature coefficient?

A: Yes. All identified substitutes maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating temperature range, ensuring thermal performance equivalence across the full operating envelope.

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