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MCR03EZPFX5231 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX5231 is a 5.23 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 substitute parts necessary for ongoing production and maintenance applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 5.23 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 |
| Automotive Rating | AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MCR03EZPFX5231 is determined by strict equivalence across the following parameters:
- Resistance value: 5.23 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
- RoHS3 compliance
- MSL rating: 1 (Unlimited)
All substitute parts listed meet these electrical and mechanical specifications. Parts are categorized as Direct equivalents (matching AEC-Q200 automotive rating) or Similar alternatives (moisture-resistant variants without explicit AEC-Q200 designation).
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | Features | Product Status | RoHS |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX5231 | Rohm Semiconductor | 5.23 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Discontinued | ROHS3 |
| CRCW06035K23FKEA | Vishay Dale | 5.23 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | ROHS3 |
| ERJ-3EKF5231V | Panasonic Electronic Components | 5.23 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | ROHS3 |
| RMCF0603FT5K23 | Stackpole Electronics Inc | 5.23 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | ROHS3 |
| CR0603-FX-5231ELF | Bourns Inc. | 5.23 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | ROHS3 |
| RC0603FR-075K23L | YAGEO | 5.23 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | ROHS3 |
| RC1608F5231CS | Samsung Electro-Mechanics | 5.23 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | ROHS3 |
Engineering Selection Recommendations
For applications requiring strict AEC-Q200 automotive compliance, select from the Direct equivalent group: CRCW06035K23FKEA (Vishay Dale), ERJ-3EKF5231V (Panasonic Electronic Components), or RMCF0603FT5K23 (Stackpole Electronics Inc). All three maintain active product status with full automotive qualification.
For non-automotive applications or where moisture resistance is prioritized over explicit AEC-Q200 designation, the Similar alternatives CR0603-FX-5231ELF (Bourns Inc.), RC0603FR-075K23L (YAGEO), and RC1608F5231CS (Samsung Electro-Mechanics) are suitable. These parts maintain identical electrical specifications and RoHS3 compliance with active availability.
Inventory availability varies significantly across manufacturers. RMCF0603FT5K23 offers the highest stock level (242,940 pcs), while RC1608F5231CS has limited availability (988 pcs).
Frequently Asked Questions (FAQ)
Q: Can I substitute the MCR03EZPFX5231 with any of the listed parts?
A: Yes, all listed parts meet the electrical and mechanical specifications of the MCR03EZPFX5231. Direct equivalents maintain AEC-Q200 automotive certification. Similar alternatives provide equivalent electrical performance with moisture-resistant construction but without explicit AEC-Q200 designation.
Q: What is the difference between Direct and Similar substitute categories?
A: Direct equivalents (CRCW06035K23FKEA, ERJ-3EKF5231V, RMCF0603FT5K23) carry AEC-Q200 automotive qualification matching the original part. Similar alternatives (CR0603-FX-5231ELF, RC0603FR-075K23L, RC1608F5231CS) feature moisture-resistant construction without explicit automotive certification but maintain all core electrical parameters.
Q: Are there physical dimension differences between substitute parts?
A: Minor variations exist within tolerance. The MCR03EZPFX5231, ERJ-3EKF5231V, RC0603FR-075K23L, and RC1608F5231CS measure 0.063" L x 0.031" W (1.60mm x 0.80mm). CRCW06035K23FKEA and RMCF0603FT5K23 measure 0.061" L x 0.031" W (1.55mm x 0.80mm). All height specifications are 0.022" (0.55mm) maximum except CRCW06035K23FKEA at 0.020" (0.50mm). These variations remain within standard PCB layout tolerances for 0603 package footprints.
Q: Which substitute offers the best availability?
A: RMCF0603FT5K23 (Stackpole Electronics Inc) provides the highest inventory level at 242,940 pieces with active product status and full AEC-Q200 compliance.
Q: Are all substitutes RoHS3 compliant?
A: Yes, all listed substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original MCR03EZPFX5231 specifications.
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