MCR03EZPFX2943 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX2943 is a 294 kOhms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This thick film resistor meets automotive AEC-Q200 qualification standards and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for seamless circuit board integration.

Substiute Parts

MCR03EZPFX2943

Rohm SemiconductorIn Stock: 1046MCR03EZPFX2943 Datasheet

Current PartRFQ

CRCW0603294KFKEA

Vishay DaleIn Stock: 20600CRCW0603294KFKEA Datasheet

DirectRFQ

ERJ-3EKF2943V

Panasonic Electronic ComponentsIn Stock: 61014ERJ-3EKF2943V Datasheet

DirectRFQ

CR0603-FX-2943ELF

Bourns Inc.In Stock: 38612CR0603-FX-2943ELF Datasheet

SimilarRFQ

RC0603FR-07294KL

YAGEOIn Stock: 177351RC0603FR-07294KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (294 kOhms), 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 (RoHS3, MSL 1). All identified substitutes meet these criteria. Substitutes are grouped into two categories: Direct equivalents (CRCW0603294KFKEA, ERJ-3EKF2943V) maintain automotive AEC-Q200 qualification; similar substitutes (CR0603-FX-2943ELF, RC0603FR-07294KL) provide moisture-resistant thick film construction without explicit AEC-Q200 designation but retain all core electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 qualification, CRCW0603294KFKEA (Vishay Dale) and ERJ-3EKF2943V (Panasonic) are direct equivalents with active product status and high inventory availability. CRCW0603294KFKEA offers 20,513 units in stock; ERJ-3EKF2943V provides 60,909 units. Both maintain identical electrical specifications and temperature performance.

For general industrial applications where AEC-Q200 certification is not required, CR0603-FX-2943ELF (Bourns) and RC0603FR-07294KL (YAGEO) provide moisture-resistant thick film construction with equivalent electrical performance. RC0603FR-07294KL demonstrates the highest inventory availability at 177,269 units. All four substitutes are RoHS3 compliant and MSL 1 rated, ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts be used interchangeably with MCR03EZPFX2943?

A: Yes. All listed substitutes maintain identical resistance (294 kOhms), tolerance (±1%), power rating (0.1W), package (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Physical dimensions and termination count are equivalent, enabling direct PCB footprint compatibility.

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

A: Direct equivalents (CRCW0603294KFKEA, ERJ-3EKF2943V) carry automotive AEC-Q200 qualification matching the original part. Similar substitutes (CR0603-FX-2943ELF, RC0603FR-07294KL) feature moisture-resistant thick film construction without explicit AEC-Q200 designation. All four meet core electrical and mechanical specifications.

Q: Are there dimensional differences between these parts?

A: Dimensional variations are minimal. MCR03EZPFX2943, ERJ-3EKF2943V, CR0603-FX-2943ELF, and RC0603FR-07294KL share identical dimensions (0.063" L x 0.031" W, 1.60mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. CRCW0603294KFKEA exhibits slight dimensional variation (0.061" L x 0.033" W, 1.55mm x 0.85mm) with 0.020" (0.50mm) maximum seated height, remaining within standard 0603 package tolerance.

Q: Which substitute offers the best inventory availability?

A: RC0603FR-07294KL (YAGEO) provides the highest stock level at 177,269 units. ERJ-3EKF2943V (Panasonic) offers 60,909 units. Both ensure rapid procurement for production requirements.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All four substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting standard environmental and assembly requirements.