MCR03EZPFX4223 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX4223 is a 422 kOhms ±1% thick film chip resistor rated at 0.1W (1/10W) in 0603 (1608 Metric) surface mount package. Manufactured by Rohm Semiconductor, this component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute components that maintain identical electrical and mechanical specifications for seamless board-level replacement.

Substiute Parts

MCR03EZPFX4223

Rohm SemiconductorIn Stock: 992MCR03EZPFX4223 Datasheet

Current PartRFQ

CRCW0603422KFKEA

Vishay DaleIn Stock: 35578CRCW0603422KFKEA Datasheet

DirectRFQ

ERJ-3EKF4223V

Panasonic Electronic ComponentsIn Stock: 86775ERJ-3EKF4223V Datasheet

DirectRFQ

RMCF0603FT422K

Stackpole Electronics IncIn Stock: 108998RMCF0603FT422K Datasheet

DirectRFQ

CR0603-FX-4223ELF

Bourns Inc.In Stock: 10555CR0603-FX-4223ELF Datasheet

SimilarRFQ

RC0603FR-07422KL

YAGEOIn Stock: 92457RC0603FR-07422KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the MCR03EZPFX4223 are classified based on strict adherence to the following critical parameters:

Direct Substitutes maintain all electrical and mechanical specifications:

• Resistance: 422 kOhms
• Tolerance: ±1%
• Power Rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature: -55°C to 155°C
• Composition: Thick Film
• RoHS3 Compliance
• MSL 1 Rating

Similar Substitutes meet all core electrical and mechanical requirements but differ in specific feature classifications (automotive AEC-Q200 certification versus moisture-resistant designation). These components are electrically and mechanically interchangeable at the board level.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Automotive AEC-Q200 Rated):

CRCW0603422KFKEA (Vishay Dale), ERJ-3EKF4223V (Panasonic Electronic Components), and RMCF0603FT422K (Stackpole Electronics Inc) are direct functional equivalents. All three maintain active product status with established supply chains. RMCF0603FT422K offers the highest inventory availability at 108,893 pieces. All three components carry identical AEC-Q200 automotive qualification, RoHS3 compliance, and MSL 1 ratings as the original MCR03EZPFX4223.

Similar Substitutes (Moisture-Resistant Designation):

CR0603-FX-4223ELF (Bourns Inc.) and RC0603FR-07422KL (YAGEO) are electrically and mechanically equivalent but designated as moisture-resistant rather than automotive AEC-Q200 qualified. Both maintain active status, RoHS3 compliance, and MSL 1 ratings. These components are suitable for applications where moisture resistance is the primary environmental requirement.

All substitute parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8533.21.0030).

Frequently Asked Questions (FAQ)

Q: Can CRCW0603422KFKEA replace MCR03EZPFX4223 directly on the PCB?

A: Yes. CRCW0603422KFKEA is a direct substitute with identical electrical specifications (422 kΩ ±1%, 0.1W), package dimensions (0603), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and AEC-Q200 automotive qualification. No circuit modifications are required.

Q: What is the difference between AEC-Q200 rated and moisture-resistant variants?

A: AEC-Q200 rated components (CRCW0603422KFKEA, ERJ-3EKF4223V, RMCF0603FT422K) are qualified for automotive applications with specific reliability and qualification testing. Moisture-resistant variants (CR0603-FX-4223ELF, RC0603FR-07422KL) emphasize environmental protection against moisture ingress. Both meet identical electrical and mechanical specifications. Selection depends on application environment requirements.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All listed substitute components are supplied in Tape & Reel (TR) packaging, consistent with standard SMD assembly processes.

Q: Do all substitutes meet RoHS3 compliance?

A: Yes. All substitute parts listed are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original MCR03EZPFX4223 specifications.

Q: Which substitute offers the best supply availability?

A: RMCF0603FT422K (Stackpole Electronics Inc) provides the highest inventory level at 108,893 pieces, followed by RC0603FR-07422KL (YAGEO) at 92,415 pieces.