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MCR03EZPFX9311 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX9311 is a 9.31 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, making equivalent substitutes necessary for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 9.31 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 |
| Number of Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the MCR03EZPFX9311 is determined by strict equivalence across the following parameters:
- Resistance value: 9.31 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
- Termination count: 2
- RoHS3 compliance
- MSL rating: 1 (Unlimited)
Substitute parts are classified into two categories:
Direct Substitutes maintain full automotive AEC-Q200 certification and identical electrical and mechanical specifications.
Similar Substitutes meet all core electrical and mechanical parameters but feature moisture-resistant construction instead of automotive AEC-Q200 rating. These parts are suitable for applications where automotive qualification is not mandatory.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op. Temp Range | Features | Product Status | RoHS3 |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX9311 | Rohm Semiconductor | 9.31 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Discontinued | Yes |
| CRCW06039K31FKEA | Vishay Dale | 9.31 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | Yes |
| ERJ-3EKF9311V | Panasonic Electronic Components | 9.31 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | Yes |
| RMCF0603FT9K31 | Stackpole Electronics Inc | 9.31 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | Yes |
| CR0603-FX-9311ELF | Bourns Inc. | 9.31 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | Yes |
| RC0603FR-079K31L | YAGEO | 9.31 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | Yes |
Engineering Selection Recommendations
For automotive applications requiring AEC-Q200 certification:
Select from the direct substitutes: CRCW06039K31FKEA (Vishay Dale), ERJ-3EKF9311V (Panasonic Electronic Components), or RMCF0603FT9K31 (Stackpole Electronics Inc). All three maintain active product status and full automotive qualification parity with the original MCR03EZPFX9311.
For non-automotive applications:
CR0603-FX-9311ELF (Bourns Inc.) and RC0603FR-079K31L (YAGEO) are suitable alternatives. Both parts meet all electrical and mechanical specifications with moisture-resistant construction and active availability.
All substitute parts maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and identical electrical performance parameters.
Frequently Asked Questions (FAQ)
Q: Can I use a substitute part in place of the MCR03EZPFX9311 in automotive applications?
A: Yes, if the application requires AEC-Q200 certification. Use CRCW06039K31FKEA, ERJ-3EKF9311V, or RMCF0603FT9K31. For non-automotive applications, CR0603-FX-9311ELF and RC0603FR-079K31L are compatible.
Q: Are all substitute parts in the same 0603 package?
A: Yes. All substitute parts use the 0603 (1608 Metric) package with identical termination count (2) and compatible physical dimensions for PCB assembly.
Q: What is the difference between direct substitutes and similar substitutes?
A: Direct substitutes carry AEC-Q200 automotive certification identical to the original part. Similar substitutes feature moisture-resistant construction and are suitable for applications where automotive qualification is not required.
Q: Do all parts have the same tolerance and temperature coefficient?
A: Yes. All substitute parts maintain ±1% tolerance and ±100ppm/°C temperature coefficient, ensuring equivalent electrical performance.
Q: Are there inventory differences between substitute options?
A: Yes. Inventory levels vary by manufacturer and distributor. YAGEO RC0603FR-079K31L shows the highest inventory availability at 235,823 pieces, while Vishay Dale CRCW06039K31FKEA offers 71,353 pieces.
Q: Can I mix different substitute parts in the same design?
A: Yes. All substitute parts meet identical electrical and mechanical specifications, allowing interchangeable use within the same circuit design.
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