MCR03EZPFX1783 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1783 is a 178 kOhms ±1% thick film chip resistor rated at 0.1W (1/10W) in 0603 (1608 Metric) package format. Manufactured by Rohm Semiconductor, this component is qualified to AEC-Q200 automotive standards and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and supply chain reliability.

Substiute Parts

MCR03EZPFX1783

Rohm SemiconductorIn Stock: 824MCR03EZPFX1783 Datasheet

Current PartRFQ

CRCW0603178KFKEA

Vishay DaleIn Stock: 59079CRCW0603178KFKEA Datasheet

DirectRFQ

ERJ-3EKF1783V

Panasonic Electronic ComponentsIn Stock: 109076ERJ-3EKF1783V Datasheet

DirectRFQ

RMCF0603FT178K

Stackpole Electronics IncIn Stock: 368214RMCF0603FT178K Datasheet

DirectRFQ

CR0603-FX-1783ELF

Bourns Inc.In Stock: 30786CR0603-FX-1783ELF Datasheet

SimilarRFQ

RC0603FR-07178KL

YAGEOIn Stock: 4036RC0603FR-07178KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (178 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (RoHS3, REACH Unaffected, EAR99).

Direct substitutes maintain all electrical and mechanical specifications identical to the MCR03EZPFX1783. Similar substitutes meet all core electrical parameters and package requirements but differ in specific features (automotive AEC-Q200 qualification versus moisture-resistant construction) or dimensional tolerances within acceptable ranges.

Parameter Comparison

Engineering Selection Recommendations

Four direct substitutes are available with active product status and full AEC-Q200 automotive qualification: CRCW0603178KFKEA (Vishay Dale), ERJ-3EKF1783V (Panasonic Electronic Components), and RMCF0603FT178K (Stackpole Electronics Inc). These parts maintain identical electrical specifications, package dimensions, and automotive compliance ratings.

Two additional substitutes with active status are available: CR0603-FX-1783ELF (Bourns Inc.) and RC0603FR-07178KL (YAGEO). These parts meet all core electrical and package requirements but feature moisture-resistant construction instead of automotive AEC-Q200 qualification. Selection between direct and similar substitutes depends on application-specific requirements for automotive qualification.

All substitute options are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes, matching the compliance profile of the original MCR03EZPFX1783.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-1783ELF or RC0603FR-07178KL as direct replacements for MCR03EZPFX1783?

A: These parts are functionally compatible for applications requiring 178 kOhms ±1% at 0.1W in 0603 package. However, they feature moisture-resistant construction rather than automotive AEC-Q200 qualification. Use these substitutes only if your application does not mandate AEC-Q200 certification.

Q: What are the key differences between the direct substitutes?

A: CRCW0603178KFKEA, ERJ-3EKF1783V, and RMCF0603FT178K are electrically and mechanically equivalent to MCR03EZPFX1783. Minor dimensional variations exist within acceptable tolerances: CRCW0603178KFKEA measures 1.55mm × 0.85mm (height 0.50mm), while ERJ-3EKF1783V and RMCF0603FT178K match the original 1.60mm × 0.80mm footprint (height 0.55mm).

Q: Are all substitutes suitable for automotive applications?

A: CRCW0603178KFKEA, ERJ-3EKF1783V, and RMCF0603FT178K carry AEC-Q200 automotive qualification identical to the original part. CR0603-FX-1783ELF and RC0603FR-07178KL do not carry this qualification and are suitable for non-automotive or applications where moisture resistance is prioritized over automotive standards.

Q: Do all substitutes meet the same compliance requirements?

A: All six parts are RoHS3 compliant, REACH unaffected, and EAR99 classified. Moisture Sensitivity Level is 1 (Unlimited) across all options, indicating no special handling requirements during storage or assembly.

Q: What inventory levels are available for each substitute?

A: RMCF0603FT178K offers the highest availability at 368,195 pieces. ERJ-3EKF1783V provides 109,055 pieces, CRCW0603178KFKEA offers 59,050 pieces, CR0603-FX-1783ELF provides 30,741 pieces, and RC0603FR-07178KL offers 3,926 pieces.