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MCR03EZPFX4643 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX4643 is a 464 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, necessitating identification of equivalent alternatives from active manufacturers that maintain identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 464 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 to 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (464 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).
The substitute parts are grouped into two categories:
Direct Equivalents (AEC-Q200 Automotive Rated): CRCW0603464KFKEA (Vishay Dale), ERJ-3EKF4643V (Panasonic Electronic Components), and RMCF0603FT464K (Stackpole Electronics Inc). These parts maintain full automotive qualification and are functionally interchangeable.
Similar Equivalents (Moisture Resistant, Non-Automotive): CR0603-FX-4643ELF (Bourns Inc.) and RC0603FR-07464KL (YAGEO). These parts meet all electrical and mechanical specifications but feature moisture-resistant construction instead of automotive AEC-Q200 certification.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Op. Temp Range | Features | Product Status | RoHS | MSL |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX4643 | Rohm Semiconductor | 464 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Discontinued | ROHS3 | 1 |
| CRCW0603464KFKEA | Vishay Dale | 464 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | ROHS3 | 1 |
| ERJ-3EKF4643V | Panasonic Electronic Components | 464 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | ROHS3 | 1 |
| RMCF0603FT464K | Stackpole Electronics Inc | 464 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Automotive AEC-Q200 | Active | ROHS3 | 1 |
| CR0603-FX-4643ELF | Bourns Inc. | 464 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | ROHS3 | 1 |
| RC0603FR-07464KL | YAGEO | 464 kOhms | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Moisture Resistant | Active | ROHS3 | 1 |
Engineering Selection Recommendations
For applications requiring automotive AEC-Q200 certification, select from the direct equivalents: CRCW0603464KFKEA, ERJ-3EKF4643V, or RMCF0603FT464K. All three maintain active product status and full compliance with automotive standards.
For non-automotive applications where moisture resistance is prioritized over automotive qualification, CR0603-FX-4643ELF and RC0603FR-07464KL are suitable alternatives. Both are actively manufactured and meet all electrical and mechanical specifications.
All substitute parts are RoHS3 compliant with MSL 1 rating, ensuring compatibility with standard PCB assembly processes and long-term storage without moisture sensitivity concerns.
Frequently Asked Questions (FAQ)
Q: Can I use CR0603-FX-4643ELF or RC0603FR-07464KL as direct replacements for MCR03EZPFX4643 in automotive applications?
A: No. CR0603-FX-4643ELF and RC0603FR-07464KL lack AEC-Q200 automotive certification. Use these only in non-automotive designs. For automotive applications, select CRCW0603464KFKEA, ERJ-3EKF4643V, or RMCF0603FT464K.
Q: Are all substitute parts available in the same packaging format?
A: Yes. All substitute parts are supplied in 0603 (1608 Metric) package with identical footprint dimensions. Most are available in Tape & Reel (TR) packaging for automated assembly.
Q: What is the difference between AEC-Q200 rated and moisture-resistant variants?
A: AEC-Q200 rated parts (CRCW0603464KFKEA, ERJ-3EKF4643V, RMCF0603FT464K) meet automotive qualification standards including thermal cycling and reliability testing. Moisture-resistant variants (CR0603-FX-4643ELF, RC0603FR-07464KL) emphasize environmental protection but do not carry automotive certification.
Q: Do all substitute parts have the same temperature coefficient?
A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating range, ensuring equivalent thermal performance.
Q: Which substitute part has the highest inventory availability?
A: RC0603FR-07464KL (YAGEO) has 147,900 pieces in stock, followed by ERJ-3EKF4643V (Panasonic) with 89,735 pieces and CRCW0603464KFKEA (Vishay Dale) with 57,854 pieces.
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