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MCR03EZPFX5903 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX5903 is a 590 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 | 590 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 for the MCR03EZPFX5903 is determined by strict equivalence across the following parameters: resistance value (590 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, REACH Unaffected, EAR99).
Parts are classified into two groups:
Direct Substitutes maintain full AEC-Q200 automotive qualification: CRCW0603590KFKEA (Vishay Dale), ERJ-3EKF5903V (Panasonic Electronic Components), and RMCF0603FT590K (Stackpole Electronics Inc).
Similar Substitutes meet all electrical and mechanical parameters but feature moisture-resistant construction instead of automotive AEC-Q200 rating: CR0603-FX-5903ELF (Bourns Inc.) and RC0603FR-07590KL (YAGEO).
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power | Package | Temp Coeff | Operating Temp | AEC-Q200 | RoHS3 | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX5903 | Rohm Semiconductor | 590 kOhms | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | Discontinued |
| CRCW0603590KFKEA | Vishay Dale | 590 kOhms | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | Active |
| ERJ-3EKF5903V | Panasonic Electronic Components | 590 kOhms | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | Active |
| RMCF0603FT590K | Stackpole Electronics Inc | 590 kOhms | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Yes | Active |
| CR0603-FX-5903ELF | Bourns Inc. | 590 kOhms | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Yes | Active |
| RC0603FR-07590KL | YAGEO | 590 kOhms | ±1% | 0.1W | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Yes | Active |
Engineering Selection Recommendations
For automotive applications requiring AEC-Q200 compliance, select from the direct substitutes: CRCW0603590KFKEA, ERJ-3EKF5903V, or RMCF0603FT590K. All three maintain active product status with established supply availability and full compliance with RoHS3 and REACH requirements.
For non-automotive applications or where moisture-resistant construction is acceptable, CR0603-FX-5903ELF and RC0603FR-07590KL provide equivalent electrical performance with active product status and high inventory availability.
Frequently Asked Questions (FAQ)
Q: Can I use CR0603-FX-5903ELF or RC0603FR-07590KL in place of MCR03EZPFX5903 in automotive circuits?
A: These parts meet all electrical and mechanical specifications but lack AEC-Q200 automotive qualification. Use only if your application does not require automotive-grade components.
Q: Are all substitute parts available in the same packaging format?
A: All substitute parts are supplied in 0603 (1608 Metric) package with identical footprint dimensions. All are available in Tape & Reel (TR) packaging for production use.
Q: What is the difference between direct and similar substitutes?
A: Direct substitutes (CRCW0603590KFKEA, ERJ-3EKF5903V, RMCF0603FT590K) carry AEC-Q200 automotive qualification matching the original part. Similar substitutes (CR0603-FX-5903ELF, RC0603FR-07590KL) feature moisture-resistant construction without automotive certification.
Q: Do all substitutes meet RoHS3 compliance?
A: Yes, all listed substitute parts are RoHS3 compliant and REACH unaffected, matching the original MCR03EZPFX5903 compliance status.
Q: Which substitute has the highest inventory availability?
A: RC0603FR-07590KL (YAGEO) has 248,720 pieces in stock, followed by CRCW0603590KFKEA (Vishay Dale) with 70,100 pieces.
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