CRXQF75M120G4Z CR Micro 1200V 25A SiC MOSFET TO-247-4L

The CR Micro CRXQF75M120G4Z is a 1200 V 25 A N-channel silicon carbide MOSFET in a TO-247-4L package. 94 mΩ typical at a 15 V gate drive (114 mΩ maximum); 75 mΩ typical at 18 V; VGS(th) 2 to 4 V.

Key Specifications

Same-Rating Selection Table

13 part numbers share the same 1200 / TO-247-4L / N rating — sorted by rds 15v typ.

Process Technology

Silicon carbide has a critical field roughly ten times that of silicon, so the drift layer can be far thinner for the same blocking voltage. The result is a much lower specific on-resistance at 1200 V and above, and a breakdown voltage that barely moves with temperature. The trade-offs are a narrower gate window and a body diode that should not carry continuous third-quadrant current.

Applications

Solar inverters, three-phase motor drives, UPS, and railway auxiliary converters.

Selection Notes

• Silicon carbide holds a much flatter Rds(on) over temperature than silicon, but the gate window is narrow. Drive at 15–18 V on and a negative or zero volt off bias as the datasheet specifies.
• The body diode is not intended for continuous third-quadrant conduction. Where the topology requires it, check the datasheet's reverse conduction figures or add an external Schottky.
• Switching speed is limited by the gate loop, not the die. Keep the gate loop inductance low and budget for a negative turn-off spike on the gate.
• Paralleling needs matched VGS(th). Because VGS(th) spread is narrow the parts parallel well, but layout symmetry still decides current sharing.

Common Questions

Is the CRXQF75M120G4Z an N-channel or P-channel device?

It is N-channel. The drain-source rating is 1200 V.

Can the CRXQF75M120G4Z be driven at 4.5 V?

No 4.5 V on-resistance figure is published for this part. It is characterised at 15 V gate drive, so use a driver that reaches 15 V.

What package does the CRXQF75M120G4Z come in?

TO-247-4L. Check the datasheet mechanical drawing for lead spacing and thermal pad dimensions before laying out the footprint.

How do I choose between the 13 part numbers in this rating group?

All 13 share the same voltage and package class. Sort by on-resistance first, then check gate charge: the lowest Rds(on) part is not automatically the best choice if the stage switches at high frequency. The table above lists them in ascending Rds(on) order.