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MCR03EZPFX1400 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX1400 is a 140 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 design substitution.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Resistance Value | 140 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 for the MCR03EZPFX1400 is determined by strict equivalence across the following critical parameters:
- Resistance value: 140 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
- RoHS3 compliance
- MSL rating: 1 (Unlimited)
All substitute parts listed below meet these core electrical and mechanical requirements. Direct substitutes maintain AEC-Q200 automotive qualification. Similar substitutes meet all electrical specifications but feature moisture-resistant construction instead of automotive-specific qualification.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | AEC-Q200 | Features | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX1400 | Rohm Semiconductor | 140 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Automotive AEC-Q200 | Discontinued |
| CRCW0603140RFKEA | Vishay Dale | 140 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Automotive AEC-Q200 | Active |
| ERJ-3EKF1400V | Panasonic Electronic Components | 140 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Automotive AEC-Q200 | Active |
| RMCF0603FT140R | Stackpole Electronics Inc | 140 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Automotive AEC-Q200 | Active |
| CR0603-FX-1400ELF | Bourns Inc. | 140 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Moisture Resistant | Active |
| RC0603FR-07140RL | YAGEO | 140 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Moisture Resistant | Active |
Engineering Selection Recommendations
For applications requiring AEC-Q200 automotive qualification, direct substitutes CRCW0603140RFKEA (Vishay Dale), ERJ-3EKF1400V (Panasonic Electronic Components), and RMCF0603FT140R (Stackpole Electronics Inc) are fully equivalent to the MCR03EZPFX1400. All three maintain active product status with established supply availability.
For non-automotive applications or designs where automotive qualification is not mandatory, CR0603-FX-1400ELF (Bourns Inc.) and RC0603FR-07140RL (YAGEO) provide equivalent electrical performance with moisture-resistant construction. Both parts maintain active status and offer substantial inventory availability.
All substitute options 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-1400ELF or RC0603FR-07140RL in an automotive application originally designed for MCR03EZPFX1400?
A: These parts meet all electrical and mechanical specifications but lack AEC-Q200 automotive qualification. Use only if your application does not require automotive-grade components or if design review permits substitution of the qualification standard.
Q: Are all substitute parts available in the same packaging format?
A: All substitute parts use 0603 (1608 Metric) package with identical footprint dimensions. Tape & Reel (TR) and Cut Tape (CT) packaging options are available across manufacturers, allowing flexibility in procurement and assembly processes.
Q: What is the difference between AEC-Q200 rated and moisture-resistant variants?
A: AEC-Q200 rated parts (CRCW0603140RFKEA, ERJ-3EKF1400V, RMCF0603FT140R) meet automotive industry qualification standards. Moisture-resistant variants (CR0603-FX-1400ELF, RC0603FR-07140RL) provide enhanced environmental protection without automotive certification. Selection depends on application requirements and design specifications.
Q: Do all substitute parts have the same temperature coefficient?
A: All listed substitutes maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating range, matching the original MCR03EZPFX1400 specification.
Q: Which substitute offers the highest inventory availability?
A: RC0603FR-07140RL (YAGEO) reports 298,091 pieces in stock, followed by ERJ-3EKF1400V (Panasonic) with 639,597 pieces. Both provide substantial supply for high-volume applications.
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