MCR03EZPFX37R4 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX37R4 is a 37.4 Ohms ±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 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.

Substiute Parts

MCR03EZPFX37R4

Rohm SemiconductorIn Stock: 798MCR03EZPFX37R4 Datasheet

Current PartRFQ

CRCW060337R4FKEA

Vishay DaleIn Stock: 15667CRCW060337R4FKEA Datasheet

DirectRFQ

ERJ-3EKF37R4V

Panasonic Electronic ComponentsIn Stock: 75715ERJ-3EKF37R4V Datasheet

DirectRFQ

RMCF0603FT37R4

Stackpole Electronics IncIn Stock: 10491RMCF0603FT37R4 Datasheet

DirectRFQ

RC0603FR-0737R4L

YAGEOIn Stock: 95904RC0603FR-0737R4L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX37R4 is determined by strict equivalence across the following parameters: resistance value (37.4 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, ensuring functional interchangeability in circuit applications.

The substitute parts are grouped into two categories based on feature alignment:

Direct Equivalents (Automotive AEC-Q200 Rated): CRCW060337R4FKEA, ERJ-3EKF37R4V, and RMCF0603FT37R4 maintain full automotive qualification matching the original part's AEC-Q200 rating.

Similar Equivalent (Moisture Resistant): RC0603FR-0737R4L provides equivalent electrical and mechanical specifications with moisture-resistant construction instead of automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 qualification, select from CRCW060337R4FKEA (Vishay Dale), ERJ-3EKF37R4V (Panasonic), or RMCF0603FT37R4 (Stackpole). All three maintain full automotive compliance equivalent to the original MCR03EZPFX37R4 specification.

For non-automotive applications where moisture resistance is the primary requirement, RC0603FR-0737R4L (YAGEO) provides equivalent electrical performance with moisture-resistant construction. This part does not carry AEC-Q200 automotive rating.

All substitute parts are currently in active production status with established supply chains, ensuring long-term availability compared to the discontinued original part.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the MCR03EZPFX37R4?

A: Yes, all listed substitute parts share identical electrical specifications (37.4 Ohms ±1%, 0.1W, ±100ppm/°C) and mechanical package (0603). Physical dimensions vary slightly within tolerance, but all are compatible with standard 0603 PCB footprints.

Q: Which substitute should I use for automotive applications?

A: CRCW060337R4FKEA, ERJ-3EKF37R4V, and RMCF0603FT37R4 all carry AEC-Q200 automotive qualification. RC0603FR-0737R4L does not have automotive certification and should not be used in automotive circuits requiring AEC-Q200 compliance.

Q: Are there differences in physical dimensions between these parts?

A: Minor variations exist within the 0603 package specification. MCR03EZPFX37R4 and ERJ-3EKF37R4V measure 0.063" L × 0.031" W (1.60mm × 0.80mm). CRCW060337R4FKEA and RMCF0603FT37R4 measure 0.061" L × 0.031" W (1.55mm × 0.80mm). RC0603FR-0737R4L measures 0.063" L × 0.031" W (1.60mm × 0.80mm). All variations fall within standard 0603 tolerance and are PCB-compatible.

Q: What is the difference between the original part and RC0603FR-0737R4L?

A: The primary difference is feature classification. MCR03EZPFX37R4 is rated for automotive AEC-Q200 applications. RC0603FR-0737R4L is rated for moisture-resistant applications. Both share identical electrical parameters and operating temperature range.

Q: Are all these parts RoHS3 compliant?

A: Yes, all parts listed are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting environmental and regulatory requirements.