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MCR03EZPFX1331 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX1331 is a 1.33 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 | 1.33 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 to 155°C |
| Number of Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MCR03EZPFX1331 is determined by strict equivalence across the following parameters: resistance value (1.33 kOhms), 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).
Parts are classified into two categories:
Direct Substitutes maintain full AEC-Q200 automotive qualification: CRCW06031K33FKEA (Vishay Dale), ERJ-3EKF1331V (Panasonic Electronic Components), and RMCF0603FT1K33 (Stackpole Electronics Inc). These parts are functionally and mechanically identical with active product status.
Similar Substitutes meet all electrical and mechanical specifications but feature moisture-resistant construction instead of automotive AEC-Q200 rating: CR0603-FX-1331ELF (Bourns Inc.) and RC0603FR-071K33L (YAGEO). 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 | Operating Temp | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX1331 | Rohm Semiconductor | 1.33 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | 950 Pcs |
| CRCW06031K33FKEA | Vishay Dale | 1.33 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 6813 Pcs |
| ERJ-3EKF1331V | Panasonic Electronic Components | 1.33 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 59837 Pcs |
| RMCF0603FT1K33 | Stackpole Electronics Inc | 1.33 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 86227 Pcs |
| CR0603-FX-1331ELF | Bourns Inc. | 1.33 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 42068 Pcs |
| RC0603FR-071K33L | YAGEO | 1.33 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 129080 Pcs |
Engineering Selection Recommendations
For automotive applications requiring AEC-Q200 compliance, select from the direct substitutes: CRCW06031K33FKEA, ERJ-3EKF1331V, or RMCF0603FT1K33. All three maintain full automotive qualification and are in active production with substantial inventory availability.
For non-automotive applications where AEC-Q200 certification is not required, CR0603-FX-1331ELF and RC0603FR-071K33L provide equivalent electrical and mechanical performance with moisture-resistant construction. These alternatives offer higher inventory levels and active product status.
All substitute parts are RoHS3 compliant with MSL 1 rating, matching the original MCR03EZPFX1331 specifications.
Frequently Asked Questions (FAQ)
Q: Can I use CR0603-FX-1331ELF or RC0603FR-071K33L in place of MCR03EZPFX1331 in automotive circuits?
A: These parts meet all electrical and mechanical specifications but lack AEC-Q200 automotive qualification. Use only in non-automotive applications or where automotive certification is not a design requirement.
Q: Are all substitute parts mechanically compatible with the original MCR03EZPFX1331?
A: Yes. All listed substitutes use the 0603 (1608 Metric) package with identical termination count (2) and compatible physical dimensions. Dimensional variations are within standard manufacturing tolerances and do not affect PCB assembly compatibility.
Q: What is the difference between direct and similar substitutes?
A: Direct substitutes (CRCW06031K33FKEA, ERJ-3EKF1331V, RMCF0603FT1K33) maintain AEC-Q200 automotive rating. Similar substitutes (CR0603-FX-1331ELF, RC0603FR-071K33L) feature moisture-resistant construction without automotive qualification.
Q: Do all substitutes have the same temperature coefficient?
A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating range, matching the original MCR03EZPFX1331.
Q: Which substitute has the best inventory availability?
A: RC0603FR-071K33L (YAGEO) offers the highest inventory at 129,080 pieces. ERJ-3EKF1331V (Panasonic) provides 59,837 pieces with AEC-Q200 compliance.
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