MCR03EZPFX5100 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX5100 is a 510 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, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for seamless circuit board integration.

Key Parameters

Parameter	Specification
Resistance Value	510 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX5100 is determined by strict equivalence across the following parameters: resistance value (510 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 (ROHS3, REACH Unaffected, EAR99).

Substitute parts are classified into two categories:

Direct Substitutes maintain all electrical and mechanical parameters with identical or compatible physical dimensions and certifications. These parts are functionally interchangeable without design modification.

Similar Substitutes meet all core electrical specifications and package requirements but may feature alternative material compositions (moisture-resistant variants) or different automotive certifications. These parts are suitable for applications where the specific feature set does not conflict with circuit requirements.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	Features	Status
MCR03EZPFX5100	Rohm Semiconductor	510 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Discontinued
CRCW0603510RFKEA	Vishay Dale	510 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
ERJ-3EKF5100V	Panasonic Electronic Components	510 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
RC0603FR-07510RL	YAGEO	510 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
RMCF0603FT510R	Stackpole Electronics Inc	510 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
CR0603-FX-5100ELF	Bourns Inc.	510 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
CRG0603F510R	TE Connectivity Passive Product	510 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	Active

Engineering Selection Recommendations

All listed substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8533.21.0030), ensuring regulatory equivalence to the original MCR03EZPFX5100.

For applications requiring automotive AEC-Q200 certification, select from: CRCW0603510RFKEA (Vishay Dale), ERJ-3EKF5100V (Panasonic Electronic Components), or RMCF0603FT510R (Stackpole Electronics Inc). These parts maintain full automotive qualification parity with the discontinued Rohm component.

For applications where moisture resistance is a design requirement, RC0603FR-07510RL (YAGEO) and CR0603-FX-5100ELF (Bourns Inc.) provide enhanced moisture-resistant thick film construction while maintaining all core electrical specifications.

CRG0603F510R (TE Connectivity Passive Product) serves as a general-purpose substitute where automotive certification is not mandated, offering active product status and full electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the MCR03EZPFX5100?

A: All listed parts share identical resistance value (510 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), and temperature coefficient (±100ppm/°C). Physical dimensions and electrical performance are equivalent. Selection depends on whether your application requires automotive AEC-Q200 certification or moisture-resistant construction.

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

A: Direct substitutes (CRCW0603510RFKEA, ERJ-3EKF5100V, RMCF0603FT510R) maintain automotive AEC-Q200 certification identical to the original part. Similar substitutes (RC0603FR-07510RL, CR0603-FX-5100ELF, CRG0603F510R) meet all electrical and package specifications but feature alternative material compositions or different certification profiles.

Q: Are there any dimensional differences between these parts?

A: All parts conform to 0603 (1608 Metric) package specifications. Minor variations exist in seated height (0.020" to 0.022") and length/width tolerances (1.55mm to 1.60mm L, 0.80mm to 0.85mm W), which fall within standard PCB design tolerances and do not affect board-level compatibility.

Q: Which substitute should I choose for automotive applications?

A: For automotive use, CRCW0603510RFKEA, ERJ-3EKF5100V, or RMCF0603FT510R are qualified selections, all carrying AEC-Q200 certification equivalent to the original MCR03EZPFX5100.

Q: Do all substitutes have the same moisture sensitivity level?

A: Yes, all listed parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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