MCR03EZPFX1781 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1781 is a 1.78 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, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

MCR03EZPFX1781

Rohm SemiconductorIn Stock: 874MCR03EZPFX1781 Datasheet

Current PartRFQ

MCR03ERTF1781

Rohm SemiconductorIn Stock: 1065MCR03ERTF1781 Datasheet

DirectRFQ

CRCW06031K78FKEA

Vishay DaleIn Stock: 18509CRCW06031K78FKEA Datasheet

DirectRFQ

ERJ-3EKF1781V

Panasonic Electronic ComponentsIn Stock: 97190ERJ-3EKF1781V Datasheet

DirectRFQ

RMCF0603FT1K78

Stackpole Electronics IncIn Stock: 66473RMCF0603FT1K78 Datasheet

DirectRFQ

CR0603-FX-1781ELF

Bourns Inc.In Stock: 20029CR0603-FX-1781ELF Datasheet

SimilarRFQ

RC0603FR-071K78L

YAGEOIn Stock: 111536RC0603FR-071K78L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX1781 is determined by strict equivalence across the following parameters:

• Resistance value: 1.78 kOhms
• 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
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Substitute parts are categorized as Direct Manufacturer equivalents (identical electrical and mechanical specifications) or Similar alternatives (matching core parameters with minor feature variations such as moisture resistance enhancements).

Parameter Comparison

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 certification, select from the following active parts: CRCW06031K78FKEA (Vishay Dale), ERJ-3EKF1781V (Panasonic Electronic Components), or RMCF0603FT1K78 (Stackpole Electronics Inc). These parts maintain full compliance with the original MCR03EZPFX1781 specifications and certifications.

For non-automotive applications or where moisture resistance is a design requirement, CR0603-FX-1781ELF (Bourns Inc.) and RC0603FR-071K78L (YAGEO) are active alternatives. Both maintain electrical equivalence and RoHS3 compliance.

MCR03ERTF1781 (Rohm Semiconductor) is a direct manufacturer equivalent but shares discontinued status with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the MCR03EZPFX1781?

A: Yes, all listed substitute parts match the core electrical and mechanical parameters: 1.78 kOhms ±1%, 0.1W power rating, 0603 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Physical dimensions and termination count are identical across all parts.

Q: Which substitute should I use for automotive applications?

A: For automotive applications requiring AEC-Q200 certification, use CRCW06031K78FKEA, ERJ-3EKF1781V, or RMCF0603FT1K78. These parts carry the same automotive rating as the original MCR03EZPFX1781.

Q: What is the difference between Direct Manufacturer and Similar alternatives?

A: Direct Manufacturer equivalents (MCR03ERTF1781, CRCW06031K78FKEA, ERJ-3EKF1781V, RMCF0603FT1K78) provide identical electrical and mechanical specifications. Similar alternatives (CR0603-FX-1781ELF, RC0603FR-071K78L) add moisture resistance features while maintaining all core parameters.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed are ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: What is the inventory status of these parts?

A: CRCW06031K78FKEA (18,413 pcs), ERJ-3EKF1781V (97,154 pcs), RMCF0603FT1K78 (66,381 pcs), RC0603FR-071K78L (111,507 pcs), and CR0603-FX-1781ELF (19,936 pcs) are all in active production with substantial inventory availability.