MCR03EZPFX1431 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1431 is a 1.43 kOhms ±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, necessitating identification of equivalent substitute components that maintain identical electrical and mechanical specifications for seamless integration into existing designs.

Substiute Parts

MCR03EZPFX1431

Rohm SemiconductorIn Stock: 1080MCR03EZPFX1431 Datasheet

Current PartRFQ

CRCW06031K43FKEA

Vishay DaleIn Stock: 1300CRCW06031K43FKEA Datasheet

DirectRFQ

ERJ-3EKF1431V

Panasonic Electronic ComponentsIn Stock: 84440ERJ-3EKF1431V Datasheet

DirectRFQ

RMCF0603FT1K43

Stackpole Electronics IncIn Stock: 66020RMCF0603FT1K43 Datasheet

DirectRFQ

CR0603-FX-1431ELF

Bourns Inc.In Stock: 19808CR0603-FX-1431ELF Datasheet

SimilarRFQ

RC0603FR-071K43L

YAGEOIn Stock: 837052RC0603FR-071K43L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (1.43 kOhms), 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 identified substitute parts meet these core electrical and mechanical requirements.

Substitute parts are categorized into two groups:

Direct Substitutes maintain full AEC-Q200 automotive qualification: CRCW06031K43FKEA (Vishay Dale), ERJ-3EKF1431V (Panasonic Electronic Components), and RMCF0603FT1K43 (Stackpole Electronics Inc).

Similar Substitutes provide equivalent electrical performance with moisture-resistant thick film composition but do not carry AEC-Q200 automotive certification: CR0603-FX-1431ELF (Bourns Inc.) and RC0603FR-071K43L (YAGEO).

Parameter Comparison

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 compliance, direct substitutes CRCW06031K43FKEA, ERJ-3EKF1431V, and RMCF0603FT1K43 are qualified replacements. All three maintain active product status with established supply availability.

For non-automotive applications or designs where AEC-Q200 certification is not a requirement, CR0603-FX-1431ELF and RC0603FR-071K43L provide electrically equivalent performance. RC0603FR-071K43L offers the highest inventory availability at 837,000 pieces.

All substitute parts are ROHS3 compliant with MSL 1 rating, matching the original component's environmental and regulatory specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a non-AEC-Q200 rated substitute in an automotive application? A: No. AEC-Q200 certification is a mandatory requirement for automotive-grade applications. Only CRCW06031K43FKEA, ERJ-3EKF1431V, and RMCF0603FT1K43 carry this qualification.

Q: Are all substitute parts physically compatible with the original PCB footprint? A: Yes. All substitute parts use the 0603 (1608 Metric) package. Dimensional variations are within standard PCB assembly tolerances. Refer to individual datasheets for precise height and length specifications if critical for your application.

Q: What is the difference between direct and similar substitutes? A: Direct substitutes maintain AEC-Q200 automotive certification. Similar substitutes provide equivalent electrical performance with moisture-resistant composition but lack automotive qualification.

Q: Which substitute offers the best supply availability? A: RC0603FR-071K43L by YAGEO has the highest inventory at 837,000 pieces. For automotive applications, ERJ-3EKF1431V by Panasonic offers 84,364 pieces in stock.

Q: Do all substitutes maintain the same temperature coefficient? A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient, matching the original MCR03EZPFX1431 specification.