C3M0075120K

Overview

The C3M0075120K is a third-generation Silicon Carbide (SiC) MOSFET from Wolfspeed, designed for high-voltage power switching applications. It features an N-channel enhancement mode configuration housed in a TO-247-4 package with a separate driver source pin to minimize gate ringing. The device offers a drain-source voltage of 1200V and a typical on-resistance of 75mΩ at 25°C. Key electrical parameters include a continuous drain current of 31A, a maximum power dissipation of 114W, and an operating junction temperature range from -55°C to +150°C. The component supports high-speed switching with low capacitances and includes a fast intrinsic diode with low reverse recovery characteristics.

Feature Summary

• Third-generation SiC MOSFET technology optimized for high blocking voltage and low on-resistance
• Separate driver source pin design to reduce switching losses and minimize gate ringing
• Fast intrinsic body diode with low reverse recovery charge for efficient commutation
• High creepage distance between drain and source for enhanced isolation

Applications

• Renewable energy systems
• EV battery chargers
• High voltage DC/DC converters
• Switch Mode Power Supplies

Procurement Notes

Verify the specific ordering suffix and package marking against the official Wolfspeed datasheet to ensure correct part identification. Confirm RoHS compliance and REACH SVHC status requirements prior to integration. Ensure that the procurement channel provides valid traceability documentation. Check for any recent revision history updates that may affect thermal or electrical specifications. Validate that the supplier can provide the necessary technical support documents such as SPICE models.

Selection Notes

Select this component for designs requiring high efficiency and power density in high-voltage environments. The separate driver source pin is critical for minimizing parasitic inductance effects in high-frequency switching circuits. Consider the thermal resistance and derating curves when designing heat sinks for continuous operation. Evaluate the gate charge requirements against available driver capabilities to optimize switching performance. Ensure the application voltage and current ratings remain within the specified safe operating area limits.

Part Context

This device belongs to Wolfspeed's third-generation Silicon Carbide MOSFET portfolio, which focuses on improving system efficiency through reduced switching and conduction losses. The TO-247-4 package is a standard industry form factor facilitating through-hole mounting. The product line is engineered to support higher switching frequencies, allowing for smaller passive components in power conversion topologies. It represents an advancement over previous generations by offering improved ruggedness and thermal performance.

Replacement Considerations

Direct replacement requires verifying pin compatibility and electrical parameter equivalence. Compare on-resistance, breakdown voltage, and thermal resistance values carefully. Ensure the substitute device supports the required gate drive voltage levels and switching speeds. Review the package dimensions to confirm mechanical fit within the existing PCB layout and heatsink interface.

FAQ

What is the purpose of the separate driver source pin?

The separate driver source pin (Pin 3) isolates the high-current power source path from the sensitive gate drive return path. This design minimizes ground bounce and reduces gate ringing during high-speed switching transitions.

How does the intrinsic diode perform under reverse recovery conditions?

The intrinsic body diode exhibits low reverse recovery charge (Qrr), which reduces switching losses during hard-switching operations. It is characterized by a peak reverse recovery current and short reverse recovery time, enhancing efficiency in synchronous rectification applications.

What is the recommended operational gate voltage range?

The recommended turn-on gate voltage is 15V with a ±5% regulation tolerance. The maximum transient gate-source voltage is +19V, while the static operational range extends down to -4V for turn-off.