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MCR03EZPFX3741 Equivalent & Substitute Parts
Part Overview
The MCR03EZPFX3741 is a 3.74 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 | 3.74 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 MCR03EZPFX3741 is determined by strict equivalence across the following parameters:
- Resistance value: 3.74 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
- RoHS compliance: ROHS3 Compliant
- Moisture sensitivity level: 1 (Unlimited)
Substitute parts are categorized as follows:
Direct Equivalents (Automotive AEC-Q200 Rated): CRCW06033K74FKEA (Vishay Dale), ERJ-3EKF3741V (Panasonic Electronic Components), and RMCF0603FT3K74 (Stackpole Electronics Inc) maintain full automotive qualification and identical electrical specifications.
Similar Equivalents (Moisture Resistant, Non-Automotive): CR0603-FX-3741ELF (Bourns Inc.), RC0603FR-073K74L (YAGEO), and RC1608F3741CS (Samsung Electro-Mechanics) meet all electrical and mechanical parameters but feature moisture-resistant construction instead of automotive AEC-Q200 certification.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff | Operating Temp | AEC-Q200 | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|
| MCR03EZPFX3741 | Rohm Semiconductor | 3.74 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Discontinued | 1085 Pcs |
| CRCW06033K74FKEA | Vishay Dale | 3.74 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 17944 Pcs |
| ERJ-3EKF3741V | Panasonic Electronic Components | 3.74 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 65923 Pcs |
| RMCF0603FT3K74 | Stackpole Electronics Inc | 3.74 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | Yes | Active | 87342 Pcs |
| CR0603-FX-3741ELF | Bourns Inc. | 3.74 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 28836 Pcs |
| RC0603FR-073K74L | YAGEO | 3.74 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 52048 Pcs |
| RC1608F3741CS | Samsung Electro-Mechanics | 3.74 kΩ | ±1% | 0.1 | 0603 | ±100ppm/°C | -55°C ~ 155°C | No | Active | 2004 Pcs |
Engineering Selection Recommendations
For automotive applications requiring AEC-Q200 certification, select from the direct equivalent group: CRCW06033K74FKEA, ERJ-3EKF3741V, or RMCF0603FT3K74. All three maintain full automotive qualification and identical electrical specifications to the original MCR03EZPFX3741. RMCF0603FT3K74 offers the highest inventory availability at 87,342 pieces.
For non-automotive applications or where automotive certification is not required, the similar equivalent group (CR0603-FX-3741ELF, RC0603FR-073K74L, RC1608F3741CS) provides functional equivalence with moisture-resistant construction. These parts meet all electrical and mechanical parameters while offering active product status and adequate inventory levels.
All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical dimensional specifications within tolerance ranges specified for the 0603 package.
Frequently Asked Questions (FAQ)
Q: Can I use CR0603-FX-3741ELF in place of MCR03EZPFX3741 in an automotive application?
A: CR0603-FX-3741ELF is not AEC-Q200 rated. If your application requires automotive qualification, use CRCW06033K74FKEA, ERJ-3EKF3741V, or RMCF0603FT3K74 instead.
Q: Are all substitute parts physically compatible with the original PCB layout?
A: Yes. All substitute parts use the 0603 (1608 Metric) package with identical pin spacing and footprint. Dimensional variations (length 0.061" to 0.063", width 0.031" to 0.033", height 0.020" to 0.022") fall within standard PCB design tolerances for 0603 components.
Q: What is the difference between direct equivalents and similar equivalents?
A: Direct equivalents (CRCW06033K74FKEA, ERJ-3EKF3741V, RMCF0603FT3K74) carry AEC-Q200 automotive certification matching the original part. Similar equivalents (CR0603-FX-3741ELF, RC0603FR-073K74L, RC1608F3741CS) meet all electrical and mechanical specifications but feature moisture-resistant construction without automotive qualification.
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, matching the original MCR03EZPFX3741.
Q: Which substitute offers the best inventory availability?
A: RMCF0603FT3K74 (Stackpole Electronics Inc) offers 87,342 pieces in stock, the highest availability among all direct equivalents.
Q: Are all parts RoHS compliant?
A: Yes. All substitute parts are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original part's compliance status.
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