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MCR03EZPFX3301 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX3301 is a 3.3 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 | 3.3 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 MCR03EZPFX3301 is determined by strict equivalence across the following parameters: resistance value (3.3 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).
Substitute parts are categorized into two groups:
Direct Substitutes maintain full AEC-Q200 automotive qualification and identical electrical specifications. These parts are functionally interchangeable without design modification.
Similar Substitutes meet all electrical and mechanical parameters but may differ in specific feature sets (such as moisture resistance designation) or automotive certification status. These parts are electrically compatible but require design review for automotive applications.
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | AEC-Q200 | Status |
|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX3301 | Rohm Semiconductor | 3.3 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued |
| CRCW06033K30FKEA | Vishay Dale | 3.3 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active |
| ERJ-3EKF3301V | Panasonic Electronic Components | 3.3 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active |
| RMCF0603FG3K30 | Stackpole Electronics Inc | 3.3 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active |
| RMCF0603FT3K30 | Stackpole Electronics Inc | 3.3 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active |
| CR0603-FX-3301ELF | Bourns Inc. | 3.3 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active |
| CRG0603F3K3 | TE Connectivity Passive Product | 3.3 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active |
| RC0603FR-073K3L | YAGEO | 3.3 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active |
Engineering Selection Recommendations
For applications requiring AEC-Q200 automotive qualification, select from the direct substitute group: CRCW06033K30FKEA (Vishay Dale), ERJ-3EKF3301V (Panasonic Electronic Components), RMCF0603FG3K30 (Stackpole Electronics Inc), or RMCF0603FT3K30 (Stackpole Electronics Inc). All direct substitutes maintain identical electrical specifications and automotive compliance certifications.
For non-automotive applications or designs where AEC-Q200 certification is not required, similar substitutes CR0603-FX-3301ELF (Bourns Inc.), CRG0603F3K3 (TE Connectivity Passive Product), and RC0603FR-073K3L (YAGEO) are electrically equivalent and meet all specified electrical parameters.
All substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental compliance profile.
Frequently Asked Questions (FAQ)
Q: Can I use any of these substitute parts interchangeably with the MCR03EZPFX3301?
A: Direct substitutes (CRCW06033K30FKEA, ERJ-3EKF3301V, RMCF0603FG3K30, RMCF0603FT3K30) are fully interchangeable for automotive applications. Similar substitutes are electrically equivalent but lack AEC-Q200 certification and require design review for automotive use.
Q: What is the difference between direct and similar substitutes?
A: Direct substitutes maintain AEC-Q200 automotive qualification and are approved for automotive circuit applications. Similar substitutes meet all electrical and mechanical specifications but are not AEC-Q200 rated and may include different feature designations such as moisture resistance.
Q: Are all substitute parts available in the same packaging options?
A: All substitute parts are available in 0603 (1608 Metric) package. Packaging formats vary by manufacturer: CRCW06033K30FKEA and RC0603FR-073K3L are supplied in Cut Tape (CT) & Digi-Reel format, while RMCF0603FG3K30, RMCF0603FT3K30, CR0603-FX-3301ELF, and CRG0603F3K3 are supplied in Tape & Reel (TR) format.
Q: Do all substitutes meet the same temperature and tolerance specifications?
A: Yes. All substitute parts specified maintain ±1% tolerance, 0.1W power rating, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating temperature range, matching the original MCR03EZPFX3301 specifications.
Q: Which substitute has the highest inventory availability?
A: RMCF0603FT3K30 (Stackpole Electronics Inc) has the highest inventory with 709,302 pieces in stock, followed by ERJ-3EKF3301V (Panasonic Electronic Components) with 312,673 pieces.
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