C38
Faratronic C38 lug-terminal IGBT snubber film capacitor, 0.047 uF to 9.0 uF, 630 to 3000 Vdc, for bolted power stacks.
The C38 from Faratronic is the lug-terminal version of the IGBT snubber capacitor, designed for a power stack where the capacitor bolts directly across the module busbars. It shares the electrical design of the C3H series, with metallized polypropylene film, a low equivalent series inductance and a resin-filled, self-healing construction that clamps a turn-off spike safely and has excellent flame-retardant behaviour. The series covers about 0.047 uF to 9.0 uF at 630 Vdc to 3000 Vdc, with a tolerance of plus or minus 5 or 10 percent, over minus 40 to plus 85 degrees Celsius, so it suits traction and rail converters, large motor drives, induction heating and high-voltage supplies. The lug terminals are the reason to choose the C38 over the C3H: a bolted connection to the module makes the snubber loop as short as the construction allows, which is what keeps the overshoot low in a high-current converter. Because the snubber is the last line of defence for an expensive module, its reliability matters as much as its value, and the self-healing film clears a local breakdown instead of failing short. Every part BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Availability is confirmed per project where the rating is less common.
FAE Professional Review
The C38 is the snubber for a bolted power stack. The lug terminals let it sit on the busbars with almost no loop, which is exactly what a high-current converter needs, and the same low-ESL film design as the C3H keeps the spike under control. Confirm the voltage class and the mounting torque.
| Parameter | Value |
|---|---|
| Voltage (Vdc) | 630 to 3000 Vdc |
| Capacitance | 0.047 to 9.0 uF |
| Tolerance | +/-5% / +/-10% |
| Terminals | Lug |
| Construction | Lug terminal, IGBT snubber |
Application Circuits
Traction and rail converters
Reference circuits and application schematics for Traction and rail converters are available from our FAE team.
Large motor drives
Reference circuits and application schematics for Large motor drives are available from our FAE team.
High-voltage power supplies
Reference circuits and application schematics for High-voltage 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
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Frequently Asked Questions
What is the C38 rated for?
The C38 covers about 0.047 uF to 9.0 uF at 630 Vdc to 3000 Vdc with lug terminals, rated minus 40 to plus 85 degrees Celsius.
Choose a voltage class above the worst-case turn-off spike with margin.
Why choose the C38 rather than the C3H?
Choose the C38 when the capacitor bolts directly to the module busbars in a power stack, because the lug connection gives the shortest and lowest-inductance snubber loop. Choose the C3H when the capacitor mounts on a PCB close to the module.
Always pick the option that shortens the loop.
Is lead time longer for the C38?
Common C38 values are held in stock; less common ratings are scheduled per project through Faratronic official channels. BeiLuo reserves supply against your forecast and confirms lead time before an order.
Share your volume for current availability.