C4D40120D
Cree C4D40120D SiC diode, 1200 V, 40 A in TO-247-3 with 175 °C junction rating and zero reverse recovery for high-power rectification.
The C4D40120D is a Cree C4D silicon carbide diode rated at 1200 V with a 40 A forward current, in the TO-247-3 package. It provides a high current in a single package for the rectification and freewheeling paths of high-power converters. Because a SiC Schottky diode stores essentially no charge, it has no reverse-recovery loss and no recovery noise, which makes it ideal for the freewheeling, rectification and power-factor-correction paths of high-power chargers, solar and storage inverters and industrial power supplies. The 1200 V rating suits converters that run from a high DC bus with margin for switching overshoot, and the diode has a positive temperature coefficient of forward voltage, so it can be paralleled for even higher current without thermal runaway and it switches the same hot or cold. The TO-247-3 package mounts on a standard heatsink and offers a low thermal resistance, and the diode is rated to a 175 °C maximum junction temperature. Typical uses include high-current PFC, output rectification, freewheeling in large bridges and industrial rectification. Every device BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Availability is confirmed per project, and our FAE team supports diode selection, paralleling and thermal design.
FAE Professional Review
The C4D40120D packs 40 A of SiC rectification into a rugged TO-247-3 package, which makes high-current PFC and rectification stages compact and quiet. The zero reverse recovery and the positive temperature coefficient keep both loss and EMI down. At this current the thermal path is the design, so review the heatsink early.
| Parameter | Value |
|---|---|
| Reverse Voltage | 1200 V |
| Forward Current | 40 A |
| Package | TO-247-3 |
| Tj max | 175 °C |
Application Circuits
High-power PFC
Reference circuits and application schematics for High-power PFC are available from our FAE team.
Solar and storage inverters
Reference circuits and application schematics for Solar and storage inverters are available from our FAE team.
Industrial power supplies
Reference circuits and application schematics for Industrial power supplies are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
Related Documents
Alternative Part Numbers
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| C3M0016120K | TO-247-4 | 1200 V SiC MOSFET for the high-power switching stage | View |
| C4D10120A | TO-220-2 | Companion SiC diode for a lower-current path | View |
Recommended Complementary Products
Frequently Asked Questions
When should I choose the 40 A diode?
Choose it when a single rectification or freewheeling path must carry high current in one package, such as a high-power PFC stage, a large solar inverter or an industrial supply. The TO-247-3 package mounts on a standard heatsink.
For lower current, a TO-220 diode such as the C4D10120A is smaller and cheaper.
How do I manage 40 A in one package?
Use a low-inductance connection, keep the commutation loop tight, and provide a heatsink that removes the loss at full current. Because the diode has a positive temperature coefficient, paralleling two devices is also practical for even higher current.
Our FAE team can review your design.
Is lead time longer for this diode?
Stock status for the C4D40120D is confirmed per request, and high-current parts can be allocation-managed. BeiLuo sources through Cree/Wolfspeed's authorized channel and reserves supply against your plan.
Share your volume for current lead time.