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MCR03EZPFX4420 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX4420 is a 442 Ohms ±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, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for seamless integration into existing designs.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 442 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.1W (1/10W) |
| Package / Case | 0603 (1608 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Automotive Rating | AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | MSL 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict equivalence across the following critical parameters:
- Resistance value: 442 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
- RoHS compliance: ROHS3 Compliant
- Moisture sensitivity: MSL 1
Parts are classified as Direct Substitutes when all parameters match the original specification. Parts classified as Similar Substitutes meet all electrical and mechanical requirements but differ in specific features (such as automotive AEC-Q200 rating or moisture resistance designation) while maintaining functional compatibility.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX4420 | Rohm Semiconductor | 442 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | 862 Pcs |
| CRCW0603442RFKEA | Vishay Dale | 442 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 8816 Pcs |
| ERJ-3EKF4420V | Panasonic Electronic Components | 442 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 28894 Pcs |
| RMCF0603FT442R | Stackpole Electronics Inc | 442 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 12875 Pcs |
| CR0603-FX-4420ELF | Bourns Inc. | 442 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 25714 Pcs |
| RC0603FR-07442RL | YAGEO | 442 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 77087 Pcs |
Engineering Selection Recommendations
For applications requiring strict AEC-Q200 automotive compliance, direct substitutes are CRCW0603442RFKEA (Vishay Dale), ERJ-3EKF4420V (Panasonic Electronic Components), and RMCF0603FT442R (Stackpole Electronics Inc). All three maintain active product status with established supply availability.
For non-automotive applications or designs where AEC-Q200 certification is not mandatory, CR0603-FX-4420ELF (Bourns Inc.) and RC0603FR-07442RL (YAGEO) provide functional equivalence with moisture-resistant thick film construction. RC0603FR-07442RL offers the highest inventory availability at 77087 pieces.
All substitute parts are ROHS3 compliant with MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols.
Frequently Asked Questions (FAQ)
Q: Can I use CR0603-FX-4420ELF or RC0603FR-07442RL in place of MCR03EZPFX4420 in automotive applications?
A: CR0603-FX-4420ELF and RC0603FR-07442RL are not rated for AEC-Q200 automotive qualification. Use these parts only in non-automotive applications or where automotive certification is not required. For automotive designs, select from CRCW0603442RFKEA, ERJ-3EKF4420V, or RMCF0603FT442R.
Q: Are all substitute parts physically compatible with the original PCB footprint?
A: All substitute parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within tolerance (length 1.55–1.60mm, width 0.80–0.85mm, height 0.50–0.55mm), but these fall within standard PCB design tolerances and do not affect assembly compatibility.
Q: What is the difference between Direct and Similar substitutes?
A: Direct substitutes (CRCW0603442RFKEA, ERJ-3EKF4420V, RMCF0603FT442R) maintain full AEC-Q200 automotive rating. Similar substitutes (CR0603-FX-4420ELF, RC0603FR-07442RL) meet all electrical and mechanical specifications but lack automotive certification and are designated as moisture-resistant rather than automotive-grade.
Q: Which substitute offers the best supply availability?
A: RC0603FR-07442RL (YAGEO) has the highest inventory at 77087 pieces. However, if AEC-Q200 compliance is required, ERJ-3EKF4420V (Panasonic) offers 28894 pieces with active status.
Q: Do all parts meet RoHS and REACH compliance?
A: All listed parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.
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