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MCR03ERTJ331 Equivalent & Substitute Parts
Part Overview
The MCR03ERTJ331 is a 330 Ohm ±5% thick film chip resistor in 0603 (1608 Metric) package rated for 0.1W (1/10W) operation across -55°C to 155°C. Manufactured by Rohm Semiconductor, this part is discontinued at DiGi Electronics. Equivalent and substitute parts are available from multiple manufacturers with identical or improved electrical specifications, ensuring design continuity and supply chain flexibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 330 Ohms |
| Tolerance | ±5% |
| Power Rating | 0.1W (1/10W) |
| Package | 0603 (1608 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±200ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution is determined by three critical parameters: resistance value (330 Ohms), package format (0603), and power rating (0.1W). All listed substitutes maintain these core specifications. Tolerance and temperature coefficient variations define upgrade versus direct equivalency categories.
Direct Equivalents (±5% tolerance, ±200ppm/°C): Parts with identical tolerance and temperature coefficient specifications. These are pin-for-pin compatible with no circuit performance impact.
Upgrade Options (±1% tolerance, ±100ppm/°C): Parts with tighter tolerance and improved temperature stability. These provide enhanced accuracy and thermal performance while maintaining full backward compatibility.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power | Temp Coeff | Package | Status | Features |
|---|---|---|---|---|---|---|---|---|
| MCR03ERTJ331 | Rohm Semiconductor | 330 Ω | ±5% | 0.1W | ±200ppm/°C | 0603 | Discontinued | — |
| CR0603-JW-331ELF | Bourns Inc. | 330 Ω | ±5% | 0.1W | ±200ppm/°C | 0603 | Active | Moisture Resistant |
| CRCW0603330RJNEA | Vishay Dale | 330 Ω | ±5% | 0.1W | ±200ppm/°C | 0603 | Active | Automotive AEC-Q200 |
| ERJ-3GEYJ331V | Panasonic Electronic Components | 330 Ω | ±5% | 0.1W | ±200ppm/°C | 0603 | Active | Automotive AEC-Q200 |
| RMCF0603JT330R | Stackpole Electronics Inc | 330 Ω | ±5% | 0.1W | ±200ppm/°C | 0603 | Active | Automotive AEC-Q200 |
| RC0603JR-07330RL | YAGEO | 330 Ω | ±5% | 0.1W | ±100ppm/°C | 0603 | Active | Moisture Resistant |
| KTR03EZPF3300 | Rohm Semiconductor | 330 Ω | ±1% | 0.1W | ±100ppm/°C | 0603 | Active | Automotive AEC-Q200, High Voltage |
| CRG0603F330R | TE Connectivity Passive Product | 330 Ω | ±1% | 0.1W | ±100ppm/°C | 0603 | Active | — |
| ERJ-3EKF3300V | Panasonic Electronic Components | 330 Ω | ±1% | 0.1W | ±100ppm/°C | 0603 | Active | Automotive AEC-Q200 |
| RC0603FR-07330RL | YAGEO | 330 Ω | ±1% | 0.1W | ±100ppm/°C | 0603 | Active | Moisture Resistant |
| RMCF0603FT330R | Stackpole Electronics Inc | 330 Ω | ±1% | 0.1W | ±100ppm/°C | 0603 | Active | Automotive AEC-Q200 |
Engineering Selection Recommendations
For Direct Replacement: CR0603-JW-331ELF (Bourns), CRCW0603330RJNEA (Vishay Dale), ERJ-3GEYJ331V (Panasonic), or RMCF0603JT330R (Stackpole) provide identical electrical performance with active product status and high inventory availability. All are ROHS3 compliant with MSL 1 rating.
For Improved Tolerance and Thermal Stability: KTR03EZPF3300 (Rohm), CRG0603F330R (TE Connectivity), ERJ-3EKF3300V (Panasonic), RC0603FR-07330RL (YAGEO), or RMCF0603FT330R (Stackpole) offer ±1% tolerance and ±100ppm/°C temperature coefficient. These upgrades maintain full backward compatibility while reducing circuit tolerance stack-up.
For Automotive Applications: CRCW0603330RJNEA, ERJ-3GEYJ331V, KTR03EZPF3300, ERJ-3EKF3300V, and RMCF0603FT330R carry AEC-Q200 qualification, suitable for automotive-grade designs.
All substitutes are ROHS3 compliant, MSL 1 rated, and operate across the full -55°C to 155°C temperature range.
Frequently Asked Questions (FAQ)
Q: Can I use a ±1% tolerance part as a direct replacement for the ±5% MCR03ERTJ331?
A: Yes. Tighter tolerance is a superset of looser tolerance. A ±1% part meets all circuit requirements specified for ±5%. No circuit redesign is required.
Q: What is the difference between direct equivalents and upgrade options?
A: Direct equivalents match the original ±5% tolerance and ±200ppm/°C temperature coefficient. Upgrade options provide ±1% tolerance and ±100ppm/°C temperature coefficient, reducing circuit tolerance stack-up and improving thermal stability. Both are electrically compatible.
Q: Are all substitute parts available in the same packaging?
A: Yes. All listed substitutes use 0603 (1608 Metric) package with identical footprint dimensions (0.063" L x 0.031" W, 1.60mm x 0.80mm). Height variations are negligible (0.020" to 0.022" seated maximum).
Q: Which substitute has the highest inventory?
A: CRG0603F330R (TE Connectivity) has 937,816 pieces in stock, followed by RMCF0603FT330R (Stackpole) with 915,704 pieces.
Q: Do all substitutes meet RoHS and REACH requirements?
A: Yes. All listed parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.
Q: What is the significance of AEC-Q200 qualification?
A: AEC-Q200 indicates automotive-grade qualification. Parts with this rating are suitable for automotive applications requiring enhanced reliability and quality assurance. Non-automotive designs can use these parts without restriction.
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