MCR03EZPFX3304 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX3304 is a 3.3 MOhms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This thick film resistor 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

MCR03EZPFX3304

Rohm SemiconductorIn Stock: 993MCR03EZPFX3304 Datasheet

Current PartRFQ

CRCW06033M30FKEA

Vishay DaleIn Stock: 60732CRCW06033M30FKEA Datasheet

DirectRFQ

RMCF0603FT3M30

Stackpole Electronics IncIn Stock: 136850RMCF0603FT3M30 Datasheet

DirectRFQ

AC0603FR-073M3L

YAGEOIn Stock: 80656AC0603FR-073M3L Datasheet

SimilarRFQ

RC0603FR-073M3L

YAGEOIn Stock: 2072RC0603FR-073M3L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX3304 is determined by strict equivalence across the following parameters:

• Resistance value: 3.3 MOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C to 155°C minimum
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Substitute parts are grouped into two categories:

Direct Substitutes meet all electrical and mechanical parameters with AEC-Q200 automotive certification:

• CRCW06033M30FKEA (Vishay Dale)
• RMCF0603FT3M30 (Stackpole Electronics Inc)

Similar Substitutes meet all core electrical and mechanical parameters with variations in automotive certification or additional features:

• AC0603FR-073M3L (YAGEO) — includes AEC-Q200 and moisture resistant features
• RC0603FR-073M3L (YAGEO) — moisture resistant, no AEC-Q200 rating

Parameter Comparison

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 compliance:

CRCW06033M30FKEA (Vishay Dale) and RMCF0603FT3M30 (Stackpole Electronics Inc) are direct substitutes with full AEC-Q200 certification. Both maintain the required ±100ppm/°C temperature coefficient specification, with CRCW06033M30FKEA offering identical thermal performance to the original MCR03EZPFX3304. RMCF0603FT3M30 has a ±200ppm/°C temperature coefficient, which remains within acceptable tolerance for most automotive circuits but should be evaluated for precision-critical applications.

For applications where AEC-Q200 is required:

AC0603FR-073M3L (YAGEO) provides AEC-Q200 certification with additional moisture-resistant features and identical ±100ppm/°C temperature coefficient, making it suitable for harsh automotive environments.

For non-automotive or general-purpose applications:

RC0603FR-073M3L (YAGEO) meets all core electrical and mechanical specifications with moisture-resistant properties. This part lacks AEC-Q200 certification and should only be used in applications where automotive qualification is not mandated.

Frequently Asked Questions (FAQ)

Q: Can RMCF0603FT3M30 replace MCR03EZPFX3304 in automotive circuits?

A: Yes. RMCF0603FT3M30 is AEC-Q200 certified with matching resistance, tolerance, power rating, and package. The temperature coefficient is ±200ppm/°C versus ±100ppm/°C for the original part. This difference is acceptable for most automotive applications but should be evaluated for circuits requiring high precision across the full temperature range.

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

A: Direct substitutes (CRCW06033M30FKEA and RMCF0603FT3M30) carry AEC-Q200 automotive certification matching the original part's qualification level. Similar substitutes (AC0603FR-073M3L and RC0603FR-073M3L) meet all electrical and mechanical parameters but differ in automotive certification or feature set. AC0603FR-073M3L includes AEC-Q200; RC0603FR-073M3L does not.

Q: Is the 0603 package dimension identical across all substitutes?

A: All substitutes use the 0603 (1608 Metric) package. Physical dimensions vary slightly: MCR03EZPFX3304, AC0603FR-073M3L, and RC0603FR-073M3L are 0.063" L × 0.031" W; CRCW06033M30FKEA is 0.061" L × 0.033" W; RMCF0603FT3M30 is 0.061" L × 0.031" W. These variations are within standard 0603 package tolerances and do not affect PCB footprint compatibility.

Q: Can RC0603FR-073M3L be used in automotive applications?

A: RC0603FR-073M3L lacks AEC-Q200 certification and should not be used in automotive applications where this qualification is required. It is suitable only for non-automotive or general-purpose circuits meeting the same electrical specifications.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original MCR03EZPFX3304.