MCR03EZPFX4320 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX4320 is a 432 Ohms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This automotive-grade thick film resistor meets AEC-Q200 qualification standards 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.

Substiute Parts

MCR03EZPFX4320

Rohm SemiconductorIn Stock: 1131MCR03EZPFX4320 Datasheet

Current PartRFQ

MCR03ERTF4320

Rohm SemiconductorIn Stock: 902MCR03ERTF4320 Datasheet

DirectRFQ

CRCW0603432RFKEA

Vishay DaleIn Stock: 5195CRCW0603432RFKEA Datasheet

DirectRFQ

ERJ-3EKF4320V

Panasonic Electronic ComponentsIn Stock: 192804ERJ-3EKF4320V Datasheet

DirectRFQ

RMCF0603FT432R

Stackpole Electronics IncIn Stock: 6113RMCF0603FT432R Datasheet

DirectRFQ

CR0603-FX-4320ELF

Bourns Inc.In Stock: 14276CR0603-FX-4320ELF Datasheet

SimilarRFQ

RC0603FR-07432RL

YAGEOIn Stock: 6030RC0603FR-07432RL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

• Resistance value: 432 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 ~ 155°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

All identified substitutes meet these core electrical and mechanical parameters. Substitutes are grouped into two categories: Direct equivalents (matching automotive AEC-Q200 certification) and similar alternatives (meeting base electrical specifications with alternative feature sets).

Parameter Comparison

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 certification, select from the following active parts:

• ERJ-3EKF4320V (Panasonic) — highest inventory availability (192764 Pcs)
• RMCF0603FT432R (Stackpole) — active status with 6100 Pcs in stock
• CRCW0603432RFKEA (Vishay Dale) — active status with 5100 Pcs in stock

For non-automotive applications where AEC-Q200 certification is not required, CR0603-FX-4320ELF (Bourns) and RC0603FR-07432RL (YAGEO) provide active alternatives with moisture-resistant features and substantial inventory levels.

MCR03ERTF4320 (Rohm Semiconductor) is a direct manufacturer equivalent but is discontinued, limiting its viability for new procurement.

All substitutes maintain ROHS3 compliance, MSL 1 rating, and identical electrical specifications (432 Ω ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C operating range).

Frequently Asked Questions (FAQ)

Q: Can MCR03EZPFX4320 be replaced with any of these substitutes in automotive applications?

A: Only substitutes with AEC-Q200 certification are qualified for automotive use: ERJ-3EKF4320V, RMCF0603FT432R, and CRCW0603432RFKEA. CR0603-FX-4320ELF and RC0603FR-07432RL lack automotive qualification and are suitable only for non-automotive circuits.

Q: Are there dimensional differences between substitutes?

A: All parts use the 0603 (1608 Metric) package. Minor dimensional variations exist: Vishay Dale CRCW0603432RFKEA measures 0.061" L x 0.033" W with 0.020" max height, while Rohm, Panasonic, Bourns, and YAGEO parts measure 0.063" L x 0.031" W with 0.022" max height. These variations remain within standard 0603 package tolerances and do not affect PCB footprint compatibility.

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

A: Direct substitutes (MCR03ERTF4320, CRCW0603432RFKEA, ERJ-3EKF4320V, RMCF0603FT432R) match all core electrical parameters and AEC-Q200 certification. Similar substitutes (CR0603-FX-4320ELF, RC0603FR-07432RL) meet electrical specifications but feature moisture-resistant properties instead of automotive qualification.

Q: Which substitute offers the best availability?

A: ERJ-3EKF4320V (Panasonic) has the highest inventory at 192764 Pcs, with active product status and AEC-Q200 certification.

Q: Are all substitutes RoHS compliant?

A: Yes, all listed substitutes are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original MCR03EZPFX4320 specifications.