MCR03EZPFX39R0 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX39R0 is a 39 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	39 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
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX39R0 is determined by strict equivalence across the following parameters: resistance value (39 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).

Substitute parts are categorized as follows:

Direct Substitutes — Parts meeting all electrical and mechanical specifications with identical or equivalent dimensional tolerances and active product status:

CRCW060339R0FKEA (Vishay Dale) — Active status, Tape & Reel packaging
ERJ-3EKF39R0V (Panasonic Electronic Components) — Active status, Tape & Reel packaging
RMCF0603FT39R0 (Stackpole Electronics Inc) — Active status, Tape & Reel packaging

Similar Substitutes — Parts meeting all electrical and mechanical specifications with minor dimensional variations or discontinued status:

CRCW060339R0FKEB (Vishay Dale) — Discontinued at DiGi Electronics, Tape & Reel packaging
AC0603FR-0739RL (YAGEO) — Active status, moisture resistant feature, Tape & Reel packaging
CR0603-FX-39R0ELF (Bourns Inc.) — Active status, moisture resistant feature, Tape & Reel packaging
RC0603FR-0739RL (YAGEO) — Active status, moisture resistant feature, Cut Tape & Digi-Reel packaging

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	RoHS3	Product Status	Packaging Type
MCR03EZPFX39R0	Rohm Semiconductor	39 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	Discontinued	Tape & Reel
CRCW060339R0FKEA	Vishay Dale	39 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	Active	Tape & Reel
CRCW060339R0FKEB	Vishay Dale	39 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	Discontinued	Tape & Reel
ERJ-3EKF39R0V	Panasonic Electronic Components	39 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	Active	Tape & Reel
RMCF0603FT39R0	Stackpole Electronics Inc	39 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	Active	Tape & Reel
AC0603FR-0739RL	YAGEO	39 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Yes	Active	Tape & Reel
CR0603-FX-39R0ELF	Bourns Inc.	39 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Yes	Active	Tape & Reel
RC0603FR-0739RL	YAGEO	39 Ω	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Yes	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

For applications requiring strict AEC-Q200 automotive compliance, select from active-status direct substitutes: CRCW060339R0FKEA, ERJ-3EKF39R0V, or RMCF0603FT39R0. All three maintain identical electrical specifications, temperature performance, and automotive certification as the original MCR03EZPFX39R0.

CRCW060339R0FKEA (Vishay Dale) offers the highest inventory availability among active direct substitutes with 31,321 pieces in stock and established supply chain presence.

ERJ-3EKF39R0V (Panasonic Electronic Components) provides the largest inventory position at 98,710 pieces and maintains dimensional equivalence to the original part.

RMCF0603FT39R0 (Stackpole Electronics Inc) offers 107,350 pieces in inventory with active product status and full AEC-Q200 compliance.

For non-automotive applications or where AEC-Q200 certification is not mandatory, AC0603FR-0739RL and RC0603FR-0739RL (YAGEO) are viable alternatives with active status and moisture-resistant features. CR0603-FX-39R0ELF (Bourns Inc.) is suitable for applications where moisture resistance is required but AEC-Q200 certification is not specified.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-39R0ELF or RC0603FR-0739RL as direct replacements for MCR03EZPFX39R0 in automotive applications?

A: CR0603-FX-39R0ELF and RC0603FR-0739RL lack AEC-Q200 certification. If your application requires automotive-grade components under AEC-Q200 standard, use CRCW060339R0FKEA, ERJ-3EKF39R0V, or RMCF0603FT39R0 instead.

Q: Are there dimensional differences between the substitute parts and the original MCR03EZPFX39R0?

A: All substitute parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within manufacturing tolerances: length ranges from 1.55mm to 1.60mm, width from 0.80mm to 0.85mm, and height from 0.50mm to 0.55mm. These variations are within standard PCB design tolerances for 0603 components.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel packaging is standard for automated assembly processes. Cut Tape & Digi-Reel packaging (RC0603FR-0739RL) is suitable for lower-volume applications or manual assembly. Both formats contain identical components; packaging selection depends on assembly methodology and order quantity requirements.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All listed substitute parts maintain MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Which substitute offers the best long-term availability?

A: RMCF0603FT39R0 (Stackpole Electronics Inc) and ERJ-3EKF39R0V (Panasonic Electronic Components) maintain the highest inventory levels at 107,350 and 98,710 pieces respectively, with active product status indicating continued manufacturing support.

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