MCR03EZPFX1800 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1800 is a 180 Ohms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This thick film resistor meets automotive AEC-Q200 qualification and operates across -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	180 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
Compliance	ROHS3, REACH Unaffected
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (180 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All substitute parts listed maintain these core electrical and mechanical specifications.

Substitute parts are categorized as follows:

Upgrade Substitute: KTR03EZPF1800 (Rohm Semiconductor) — same manufacturer as primary part, active product status, includes high voltage feature designation.

Direct Substitutes: CRCW0603180RFKEA (Vishay Dale), ERJ-3EKF1800V (Panasonic Electronic Components), RMCF0603FT180R (Stackpole Electronics Inc) — all meet identical electrical specifications and automotive AEC-Q200 rating.

Similar Substitutes: CR0603-FX-1800ELF (Bourns Inc.), CRG0603F180R (TE Connectivity Passive Product), RC0603FR-07180RL (YAGEO) — meet core electrical specifications with minor feature variations (moisture resistant designation or packaging format differences).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Packaging Type
MCR03EZPFX1800	Rohm Semiconductor	180 Ω	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	Bulk
KTR03EZPF1800	Rohm Semiconductor	180 Ω	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	Tape & Reel
CRCW0603180RFKEA	Vishay Dale	180 Ω	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	Tape & Reel
ERJ-3EKF1800V	Panasonic Electronic Components	180 Ω	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	Tape & Reel
RMCF0603FT180R	Stackpole Electronics Inc	180 Ω	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	Tape & Reel
CR0603-FX-1800ELF	Bourns Inc.	180 Ω	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	No	Active	Tape & Reel
CRG0603F180R	TE Connectivity Passive Product	180 Ω	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	No	Active	Tape & Reel
RC0603FR-07180RL	YAGEO	180 Ω	±1%	0.1	0603	±100ppm/°C	-55°C to 155°C	No	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 compliance, select from the direct substitutes: KTR03EZPF1800, CRCW0603180RFKEA, ERJ-3EKF1800V, or RMCF0603FT180R. All maintain identical electrical specifications and automotive qualification.

KTR03EZPF1800 is the preferred upgrade substitute as it is manufactured by Rohm Semiconductor (original manufacturer) and carries active product status with high voltage feature designation.

For non-automotive applications or where AEC-Q200 is not required, CR0603-FX-1800ELF, CRG0603F180R, and RC0603FR-07180RL are functionally equivalent alternatives with active product status and established supply availability.

All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can MCR03EZPFX1800 be directly replaced with KTR03EZPF1800?

A: Yes. Both parts are manufactured by Rohm Semiconductor and share identical electrical specifications (180 Ohms ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C). KTR03EZPF1800 is the active product variant and serves as the direct upgrade substitute.

Q: Are non-AEC-Q200 parts acceptable substitutes?

A: Substitution depends on application requirements. If automotive AEC-Q200 qualification is mandatory, use only KTR03EZPF1800, CRCW0603180RFKEA, ERJ-3EKF1800V, or RMCF0603FT180R. For non-automotive applications, CR0603-FX-1800ELF, CRG0603F180R, and RC0603FR-07180RL are electrically equivalent.

Q: What are the physical dimension differences among substitutes?

A: All parts use 0603 (1608 Metric) package. Minor variations exist: CRCW0603180RFKEA measures 1.55mm × 0.85mm with 0.50mm max height; RMCF0603FT180R measures 1.55mm × 0.80mm with 0.022" max height; remaining parts measure 1.60mm × 0.80mm with 0.55mm max height. These variations are within standard 0603 package tolerances and do not affect PCB footprint compatibility.

Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects handling and assembly logistics only. RC0603FR-07180RL is supplied in Cut Tape & Digi-Reel format while others use Tape & Reel. Electrical specifications remain identical.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original MCR03EZPFX1800 specifications.

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