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MCR03EZPFX91R0 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX91R0 is a 91 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 | 91 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 | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the MCR03EZPFX91R0 is determined by strict equivalence across the following parameters: resistance value (91 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, REACH Unaffected, EAR99).
Substitute parts are categorized into two groups:
Direct Substitutes maintain full automotive AEC-Q200 qualification identical to the original part: MCR03ERTF91R0 (Rohm Semiconductor), CRCW060391R0FKEA (Vishay Dale), ERJ-3EKF91R0V (Panasonic Electronic Components), and RMCF0603FT91R0 (Stackpole Electronics Inc).
Similar Substitutes meet all electrical and mechanical parameters but differ in specific features or certifications: AC0603FR-0791RL (YAGEO, moisture resistant), CR0603-FX-91R0ELF (Bourns Inc., moisture resistant), RC0603FR-0791RL (YAGEO, moisture resistant), and RC1608F910CS (Samsung Electro-Mechanics, moisture resistant).
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX91R0 | Rohm Semiconductor | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | 1125 Pcs |
| MCR03ERTF91R0 | Rohm Semiconductor | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Discontinued | 874 Pcs |
| CRCW060391R0FKEA | Vishay Dale | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 26504 Pcs |
| ERJ-3EKF91R0V | Panasonic Electronic Components | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 71165 Pcs |
| RMCF0603FT91R0 | Stackpole Electronics Inc | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 62906 Pcs |
| AC0603FR-0791RL | YAGEO | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 2654 Pcs |
| CR0603-FX-91R0ELF | Bourns Inc. | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 67233 Pcs |
| RC0603FR-0791RL | YAGEO | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 109401 Pcs |
| RC1608F910CS | Samsung Electro-Mechanics | 91 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 1121 Pcs |
Engineering Selection Recommendations
For applications requiring strict automotive AEC-Q200 compliance, select from the direct substitute group: CRCW060391R0FKEA (Vishay Dale), ERJ-3EKF91R0V (Panasonic Electronic Components), or RMCF0603FT91R0 (Stackpole Electronics Inc). All three are currently in active production status with substantial inventory availability.
For applications where AEC-Q200 certification is not mandatory but moisture resistance is beneficial, similar substitutes AC0603FR-0791RL, CR0603-FX-91R0ELF, and RC0603FR-0791RL provide equivalent electrical and mechanical performance with active product status and high inventory levels.
All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 classification identical to the original MCR03EZPFX91R0.
Frequently Asked Questions (FAQ)
Q: Can MCR03ERTF91R0 replace MCR03EZPFX91R0 in automotive applications? A: MCR03ERTF91R0 shares identical electrical specifications and operating temperature range but lacks documented AEC-Q200 automotive qualification. Use only in non-automotive applications or where automotive certification is not required.
Q: What is the difference between direct and similar substitutes? A: Direct substitutes maintain full AEC-Q200 automotive qualification. Similar substitutes meet all electrical and mechanical parameters but may lack automotive certification or feature moisture resistance as an additional characteristic rather than a primary specification.
Q: Are all substitute parts compatible with 0603 package footprints? A: All listed substitutes use 0603 (1608 Metric) package designation. Minor dimensional variations exist within tolerance (length 1.55mm to 1.60mm, width 0.80mm to 0.85mm, height 0.50mm to 0.55mm). Verify PCB footprint design accommodates the maximum stated dimensions.
Q: Which substitute has the highest inventory availability? A: RC0603FR-0791RL (YAGEO) has 109,401 pieces in stock. ERJ-3EKF91R0V (Panasonic) has 71,165 pieces. Both are active production parts suitable for high-volume applications.
Q: Do all substitutes meet RoHS3 and REACH requirements? A: All listed substitutes are ROHS3 compliant and REACH Unaffected, matching the original MCR03EZPFX91R0 compliance profile.
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