MCR03EZPFX18R2 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX18R2 is an 18.2 Ohms ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This part is automotive-grade (AEC-Q200 certified) and designed for high-reliability applications requiring precision resistance values in compact form factors. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Resistance	18.2 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 to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX18R2 is determined by strict equivalence across the following parameters:

Resistance value: 18.2 Ohms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W / 1/10W (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C to 155°C (exact match required)
RoHS compliance: ROHS3 Compliant (exact match required)
Moisture sensitivity: MSL 1 (exact match required)

Substitute parts are categorized as Direct Equivalents (identical electrical and mechanical specifications) or Similar Parts (matching core specifications with minor feature variations such as automotive certification or moisture resistance enhancements).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	Features	Status
MCR03EZPFX18R2	Rohm Semiconductor	18.2 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Discontinued
MCR03ERTF18R2	Rohm Semiconductor	18.2 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	Discontinued
CRCW060318R2FKEA	Vishay Dale	18.2 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
ERJ-3EKF18R2V	Panasonic Electronic Components	18.2 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
RMCF0603FT18R2	Stackpole Electronics Inc	18.2 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
CR0603-FX-18R2ELF	Bourns Inc.	18.2 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
RC0603FR-0718R2L	YAGEO	18.2 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active

Engineering Selection Recommendations

For applications requiring automotive-grade qualification (AEC-Q200), select from CRCW060318R2FKEA (Vishay Dale), ERJ-3EKF18R2V (Panasonic), or RMCF0603FT18R2 (Stackpole Electronics). These parts maintain full automotive certification and are currently in active production status with established supply chains.

For general-purpose applications where automotive certification is not mandatory, CR0603-FX-18R2ELF (Bourns) and RC0603FR-0718R2L (YAGEO) provide equivalent electrical performance with moisture-resistant features and active product status. RC0603FR-0718R2L offers the highest inventory availability (306,975 pieces).

All substitute parts maintain identical electrical specifications (18.2 Ohms ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C) and are ROHS3 compliant with MSL 1 rating, ensuring direct functional compatibility in 0603 package footprints.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTF18R2 replace MCR03EZPFX18R2 directly?

A: Yes. MCR03ERTF18R2 is a direct equivalent from the same manufacturer (Rohm Semiconductor) with identical electrical and mechanical specifications. The primary difference is packaging format (Cut Tape & Digi-Reel vs. original packaging). Both are discontinued at DiGi Electronics.

Q: Are automotive-certified substitutes required for this application?

A: Automotive AEC-Q200 certification is required only if the application demands automotive-grade reliability standards. For non-automotive applications, CRCW060318R2FKEA, ERJ-3EKF18R2V, and RMCF0603FT18R2 provide automotive certification, while CR0603-FX-18R2ELF and RC0603FR-0718R2L do not but maintain equivalent electrical performance.

Q: Will these substitutes fit the existing PCB footprint?

A: All substitute parts use the 0603 (1608 Metric) package with identical footprint dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm). Minor height variations (0.020" to 0.022" seated height) do not affect PCB assembly compatibility.

Q: What is the difference between Direct Equivalents and Similar Parts?

A: Direct Equivalents (MCR03ERTF18R2) match all specifications including manufacturer series. Similar Parts (CR0603-FX-18R2ELF, RC0603FR-0718R2L) match all critical electrical and mechanical parameters but may differ in secondary features such as moisture resistance or automotive certification.

Q: Which substitute offers the best supply availability?

A: RC0603FR-0718R2L (YAGEO) has the highest inventory (306,975 pieces), followed by CR0603-FX-18R2ELF (Bourns, 18,337 pieces) and ERJ-3EKF18R2V (Panasonic, 39,790 pieces).

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