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MCR03EZPFX4322 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX4322 is a 43.2 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 currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives from active manufacturers that maintain identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 43.2 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: 43.2 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
- RoHS3 compliance
- MSL rating: 1 (Unlimited)
Parts are categorized as Direct equivalents when all parameters match the original specification. Parts designated as Similar maintain electrical equivalence but differ in specific features (such as automotive AEC-Q200 certification or moisture resistance designation). All listed substitutes are currently in active production status.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX4322 | Rohm Semiconductor | 43.2 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | 929 Pcs |
| CRCW060343K2FKEA | Vishay Dale | 43.2 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 33,444 Pcs |
| ERJ-3EKF4322V | Panasonic Electronic Components | 43.2 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 134,901 Pcs |
| RMCF0603FT43K2 | Stackpole Electronics Inc | 43.2 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 77,486 Pcs |
| CR0603-FX-4322ELF | Bourns Inc. | 43.2 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 18,979 Pcs |
| RC0603FR-0743K2L | YAGEO | 43.2 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 82,768 Pcs |
Engineering Selection Recommendations
For applications requiring AEC-Q200 automotive qualification, direct equivalents are CRCW060343K2FKEA (Vishay Dale), ERJ-3EKF4322V (Panasonic Electronic Components), and RMCF0603FT43K2 (Stackpole Electronics Inc). All three maintain full compliance with automotive standards and are in active production with substantial inventory availability.
CR0603-FX-4322ELF (Bourns Inc.) and RC0603FR-0743K2L (YAGEO) are electrically equivalent alternatives with identical resistance, tolerance, power rating, and temperature specifications. These parts are designated as similar substitutes due to absence of explicit AEC-Q200 certification in the provided specifications, though both maintain ROHS3 compliance and MSL 1 rating. Selection between these alternatives depends on specific application requirements regarding automotive qualification.
All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original specification.
Frequently Asked Questions (FAQ)
Q: Can CR0603-FX-4322ELF or RC0603FR-0743K2L be used in automotive applications requiring AEC-Q200?
A: These parts are electrically and mechanically equivalent to the MCR03EZPFX4322. However, the provided specifications do not list explicit AEC-Q200 certification for these alternatives. Verification with the manufacturer or design authority is required for applications with mandatory automotive qualification requirements.
Q: Are all substitute parts compatible with the original 0603 package footprint?
A: All listed substitutes use the 0603 (1608 Metric) package. Physical dimensions vary slightly between manufacturers (length ranges from 0.061" to 0.063", height from 0.020" to 0.022"), but these variations remain within standard 0603 package tolerances and are compatible with standard 0603 PCB footprints.
Q: What is the difference between Direct and Similar substitute classifications?
A: Direct equivalents (CRCW060343K2FKEA, ERJ-3EKF4322V, RMCF0603FT43K2) maintain all electrical and mechanical specifications including AEC-Q200 automotive certification. Similar substitutes (CR0603-FX-4322ELF, RC0603FR-0743K2L) match all core electrical parameters but lack documented AEC-Q200 certification in the provided data.
Q: Which substitute offers the highest inventory availability?
A: ERJ-3EKF4322V from Panasonic Electronic Components has the highest inventory at 134,901 pieces, followed by RC0603FR-0743K2L from YAGEO at 82,768 pieces.
Q: Do all substitutes meet RoHS3 compliance?
A: All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) rating, matching the original MCR03EZPFX4322 specification.
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