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MCR03EZPFX1270 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX1270 is a 127 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, making equivalent substitutes necessary for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 127 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 |
| Automotive Rating | AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the MCR03EZPFX1270 is determined by strict equivalence across the following parameters: resistance value (127 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1).
Substitute parts are grouped into two categories:
Direct Substitutes (Automotive AEC-Q200 Rated): Parts meeting all electrical and mechanical specifications with automotive AEC-Q200 certification, ensuring equivalent performance in automotive applications.
Similar Substitutes (Moisture Resistant, Non-Automotive): Parts meeting all electrical and mechanical specifications with moisture-resistant features but without AEC-Q200 automotive certification. These are suitable for non-automotive applications or where automotive qualification is not required.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | AEC-Q200 | RoHS3 | MSL | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX1270 | Rohm Semiconductor | 127 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | 1 | Discontinued |
| CRCW0603127RFKEA | Vishay Dale | 127 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | 1 | Active |
| ERJ-3EKF1270V | Panasonic Electronic Components | 127 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | 1 | Active |
| RMCF0603FG127K | Stackpole Electronics Inc | 127 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | 1 | Active |
| RMCF0603FT127R | Stackpole Electronics Inc | 127 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | 1 | Active |
| CR0603-FX-1270ELF | Bourns Inc. | 127 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Yes | 1 | Active |
| RC0603FR-07127RL | YAGEO | 127 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Yes | 1 | Active |
| RC1608F1270CS | Samsung Electro-Mechanics | 127 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Yes | 1 | Active |
Engineering Selection Recommendations
For automotive applications requiring AEC-Q200 certification, select from the direct substitute group: CRCW0603127RFKEA (Vishay Dale), ERJ-3EKF1270V (Panasonic Electronic Components), RMCF0603FG127K (Stackpole Electronics Inc), or RMCF0603FT127R (Stackpole Electronics Inc). All direct substitutes maintain full electrical and mechanical equivalence with the original MCR03EZPFX1270 and carry active product status with established supply availability.
For non-automotive applications where AEC-Q200 certification is not required, similar substitutes CR0603-FX-1270ELF (Bourns Inc.), RC0603FR-07127RL (YAGEO), and RC1608F1270CS (Samsung Electro-Mechanics) provide equivalent electrical performance with moisture-resistant thick film construction and active product status.
All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature specifications (-55°C to 155°C).
Frequently Asked Questions (FAQ)
Q: Can I use a non-AEC-Q200 rated substitute in an automotive application?
A: Non-AEC-Q200 rated parts do not meet automotive qualification standards. For automotive applications, use only direct substitutes with AEC-Q200 certification: CRCW0603127RFKEA, ERJ-3EKF1270V, RMCF0603FG127K, or RMCF0603FT127R.
Q: Are all substitute parts pin-compatible with the original MCR03EZPFX1270?
A: Yes. All substitute parts use the 0603 (1608 Metric) package with 2 terminations, maintaining identical PCB footprint and pin configuration.
Q: What is the difference between direct and similar substitutes?
A: Direct substitutes carry AEC-Q200 automotive certification matching the original part's automotive qualification. Similar substitutes feature moisture-resistant construction but lack AEC-Q200 certification, making them suitable for non-automotive applications.
Q: Do all substitutes have the same temperature coefficient?
A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient, identical to the original MCR03EZPFX1270.
Q: Are there packaging differences between substitute options?
A: Most substitutes are available in Tape & Reel (TR) packaging. CRCW0603127RFKEA offers Cut Tape (CT) and Digi-Reel options. RC1608F1270CS is available in Cut Tape (CT). Verify packaging requirements for your procurement process.
Q: What is the moisture sensitivity level for all parts?
A: All parts, including the original and all substitutes, carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage and handling.
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