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MCR03EZPFX4422 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX4422 is a 44.2 kOhms ±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 discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines or other manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 44.2 kOhms |
| 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 ~ 155°C |
| Automotive Rating | AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict equivalence across the following parameters:
- Resistance value: 44.2 kOhms
- Tolerance: ±1%
- Power rating: 0.1W (1/10W)
- Package: 0603 (1608 Metric)
- Composition: Thick Film
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C ~ 155°C
- RoHS compliance: ROHS3 Compliant
- Moisture sensitivity: MSL 1
Substitute parts are categorized as follows:
Direct Substitutes (Automotive AEC-Q200 Rated): Parts meeting all electrical and mechanical parameters with automotive qualification.
Similar Substitutes (Non-Automotive Features): Parts meeting all core electrical and mechanical parameters but with alternative feature sets (moisture resistant vs. automotive rated).
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp Range | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX4422 | Rohm Semiconductor | 44.2 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | 718 Pcs |
| MCR03ERTF4422 | Rohm Semiconductor | 44.2 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Discontinued | 1048 Pcs |
| CRCW060344K2FKEA | Vishay Dale | 44.2 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 52667 Pcs |
| CRCW060344K2FKEB | Vishay Dale | 44.2 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | 39798 Pcs |
| ERJ-3EKF4422V | Panasonic Electronic Components | 44.2 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 151004 Pcs |
| RMCF0603FT44K2 | Stackpole Electronics Inc | 44.2 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 69604 Pcs |
| CR0603-FX-4422ELF | Bourns Inc. | 44.2 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 44201 Pcs |
| RC0603FR-0744K2L | YAGEO | 44.2 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 345905 Pcs |
Engineering Selection Recommendations
For Automotive Applications (AEC-Q200 Required):
Select from active product status parts with AEC-Q200 certification:
- CRCW060344K2FKEA (Vishay Dale) — Active status, highest automotive qualification assurance
- ERJ-3EKF4422V (Panasonic Electronic Components) — Active status, largest available inventory
- RMCF0603FT44K2 (Stackpole Electronics Inc) — Active status, established automotive supplier
For Non-Automotive Applications:
Parts with moisture-resistant features and active status:
- CR0603-FX-4422ELF (Bourns Inc.) — Active status, moisture resistant
- RC0603FR-0744K2L (YAGEO) — Active status, largest inventory, moisture resistant
For Discontinued Product Replacement:
MCR03ERTF4422 (Rohm Semiconductor) maintains electrical and mechanical equivalence but lacks AEC-Q200 certification. Use only if automotive qualification is not required.
Frequently Asked Questions (FAQ)
Q: Can I use a non-AEC-Q200 rated substitute in an automotive application?
A: No. If the original design specifies AEC-Q200 compliance, substitute parts must maintain this certification. AEC-Q200 rating indicates qualification for automotive temperature cycling, vibration, and reliability standards. Use only CRCW060344K2FKEA, ERJ-3EKF4422V, or RMCF0603FT44K2 for automotive applications.
Q: Are there dimensional differences between substitute parts?
A: Minor dimensional variations exist within the 0603 package specification. Length ranges from 0.061" to 0.063" (1.55mm to 1.60mm) and height from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within standard PCB design tolerances and do not affect electrical performance or mechanical fit.
Q: What is the difference between "Direct" and "Similar" substitutes?
A: Direct substitutes carry AEC-Q200 automotive certification matching the original part. Similar substitutes meet all electrical and mechanical parameters but feature moisture-resistant composition instead of automotive qualification. Selection depends on application requirements.
Q: Can I mix different substitute parts in the same design?
A: Yes. All listed substitutes meet identical electrical specifications (44.2 kΩ ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C). Mixing is permissible from a functional standpoint, though design documentation should reflect the specific part numbers used.
Q: Which substitute has the best availability?
A: RC0603FR-0744K2L (YAGEO) has the largest inventory at 345,905 pieces. For automotive-qualified parts, ERJ-3EKF4422V (Panasonic) offers 151,004 pieces in stock.
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