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MCR03EZPFX6040 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX6040 is a 604 Ohms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This thick film resistor meets automotive AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for seamless board-level substitution.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 604 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 |
| Compliance | RoHS3, REACH Unaffected |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (604 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All identified substitutes maintain these core electrical specifications. Automotive AEC-Q200 qualification is present in direct substitutes; similar substitutes feature moisture-resistant thick film construction without explicit AEC-Q200 marking but retain all other electrical and thermal parameters.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op Temp Range | Features | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX6040 | Rohm Semiconductor | 604 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Discontinued | 824 Pcs |
| CRCW0603604RFKEA | Vishay Dale | 604 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | 46513 Pcs |
| ERJ-3EKF6040V | Panasonic Electronic Components | 604 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | 119096 Pcs |
| RMCF0603FG604R | Stackpole Electronics Inc | 604 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | 670 Pcs |
| RMCF0603FT604R | Stackpole Electronics Inc | 604 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | 464703 Pcs |
| CR0603-FX-6040ELF | Bourns Inc. | 604 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | 24951 Pcs |
| RC0603FR-07604RL | YAGEO | 604 Ω | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | 6085 Pcs |
Engineering Selection Recommendations
Direct substitutes with automotive AEC-Q200 qualification are CRCW0603604RFKEA (Vishay Dale), ERJ-3EKF6040V (Panasonic), RMCF0603FG604R (Stackpole), and RMCF0603FT604R (Stackpole). These parts maintain full compliance equivalence with the original MCR03EZPFX6040 and are actively manufactured. ERJ-3EKF6040V and RMCF0603FT604R offer highest inventory availability.
Similar substitutes CR0603-FX-6040ELF (Bourns) and RC0603FR-07604RL (YAGEO) provide identical electrical and thermal performance with moisture-resistant thick film construction. These parts lack explicit AEC-Q200 marking but satisfy all core electrical parameters and RoHS3/REACH compliance requirements. Selection between direct and similar substitutes depends on specific automotive qualification requirements for the end application.
Frequently Asked Questions (FAQ)
Q: Can I substitute MCR03EZPFX6040 with any of the listed parts? A: Yes, all listed parts are electrically and mechanically equivalent. Direct substitutes (CRCW0603604RFKEA, ERJ-3EKF6040V, RMCF0603FG604R, RMCF0603FT604R) carry AEC-Q200 automotive qualification matching the original. Similar substitutes (CR0603-FX-6040ELF, RC0603FR-07604RL) meet all electrical specifications with moisture-resistant construction but without explicit AEC-Q200 marking.
Q: What determines substitution compatibility? A: Substitution is based on matching resistance (604 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All listed parts meet these criteria.
Q: Are there physical dimension differences between substitutes? A: Dimensions vary slightly within acceptable tolerances. MCR03EZPFX6040, ERJ-3EKF6040V, CR0603-FX-6040ELF, and RC0603FR-07604RL measure 0.063" L × 0.031" W (1.60mm × 0.80mm). CRCW0603604RFKEA, RMCF0603FG604R, and RMCF0603FT604R measure 0.061" L × 0.031" W (1.55mm × 0.80mm). All fit standard 0603 footprints without layout modification.
Q: Which substitute has the best availability? A: RMCF0603FT604R (Stackpole) offers 464,703 pieces in stock, followed by ERJ-3EKF6040V (Panasonic) with 119,096 pieces.
Q: Do all substitutes meet RoHS3 compliance? A: Yes, all listed substitutes are RoHS3 compliant and REACH unaffected, matching the original part's compliance status.
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