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MCR03EZPFX4220 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX4220 is a 422 Ohms ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This automotive-grade component meets AEC-Q200 specifications and is designed for high-reliability applications requiring stable resistance performance across extended temperature ranges. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 422 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.1W (1/10W) |
| Package | 0603 (1608 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the MCR03EZPFX4220 is determined by strict equivalence across the following critical parameters:
- Resistance value: 422 Ohms
- Tolerance: ±1%
- Power rating: 0.1W
- Package: 0603 (1608 Metric)
- Composition: Thick Film
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C
- Termination count: 2
- RoHS3 compliance
- MSL rating: 1
Substitute parts are classified into two categories:
Direct Substitutes maintain full automotive AEC-Q200 certification and identical electrical specifications. These include MCR03ERTF4220 (Rohm Semiconductor), CRCW0603422RFKEA (Vishay Dale), ERJ-3EKF4220V (Panasonic Electronic Components), and RMCF0603FT422R (Stackpole Electronics Inc).
Similar Substitutes meet all core electrical and mechanical parameters but differ in specific features or certifications. CR0603-FX-4220ELF (Bourns Inc.) and RC0603FR-07422RL (YAGEO) provide moisture-resistant thick film construction without explicit AEC-Q200 automotive certification, suitable for applications where automotive qualification is not mandatory.
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power | Package | Temp Coeff | Op. Temp Range | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX4220 | Rohm Semiconductor | 422 Ω | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C to 155°C | Yes | Discontinued | 967 Pcs |
| MCR03ERTF4220 | Rohm Semiconductor | 422 Ω | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C to 155°C | No | Discontinued | 862 Pcs |
| CRCW0603422RFKEA | Vishay Dale | 422 Ω | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C to 155°C | Yes | Active | 27088 Pcs |
| ERJ-3EKF4220V | Panasonic Electronic Components | 422 Ω | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C to 155°C | Yes | Active | 86281 Pcs |
| RMCF0603FT422R | Stackpole Electronics Inc | 422 Ω | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C to 155°C | Yes | Active | 24927 Pcs |
| CR0603-FX-4220ELF | Bourns Inc. | 422 Ω | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C to 155°C | No | Active | 24468 Pcs |
| RC0603FR-07422RL | YAGEO | 422 Ω | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C to 155°C | No | Active | 37516 Pcs |
Engineering Selection Recommendations
For applications requiring automotive AEC-Q200 compliance, select from active-status direct substitutes: CRCW0603422RFKEA (Vishay Dale), ERJ-3EKF4220V (Panasonic Electronic Components), or RMCF0603FT422R (Stackpole Electronics Inc). All three maintain full electrical equivalence and automotive qualification.
For non-automotive applications where AEC-Q200 certification is not required, CR0603-FX-4220ELF (Bourns Inc.) and RC0603FR-07422RL (YAGEO) provide active-status alternatives with moisture-resistant construction and superior inventory availability.
MCR03ERTF4220 (Rohm Semiconductor) is electrically equivalent but lacks explicit AEC-Q200 certification and is discontinued, making it unsuitable for new designs despite current inventory.
Frequently Asked Questions (FAQ)
Q: Can MCR03ERTF4220 replace MCR03EZPFX4220 in automotive applications?
A: MCR03ERTF4220 shares identical electrical specifications and package but lacks documented AEC-Q200 certification. Use only in non-automotive applications or where automotive qualification is not contractually required.
Q: What is the difference between direct and similar substitutes?
A: Direct substitutes maintain AEC-Q200 automotive certification. Similar substitutes meet all electrical and mechanical parameters but feature moisture-resistant construction without explicit automotive qualification. Selection depends on application requirements.
Q: Are all substitutes pin-compatible with the original MCR03EZPFX4220?
A: Yes. All listed substitutes use identical 0603 (1608 Metric) package with two terminations, ensuring direct PCB footprint compatibility.
Q: Which substitute offers the best inventory availability?
A: ERJ-3EKF4220V (Panasonic Electronic Components) provides the highest inventory at 86,281 pieces, followed by RC0603FR-07422RL (YAGEO) at 37,516 pieces.
Q: Do packaging differences affect substitution?
A: Packaging format (Cut Tape, Digi-Reel, or Tape & Reel) does not affect electrical or mechanical compatibility. Selection should be based on procurement and assembly requirements.
Q: Is RoHS3 compliance maintained across all substitutes?
A: Yes. All listed substitutes are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original part's environmental compliance.
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