What is an IGBT fuse?

IGBT fuses, also known as semiconductor fuses or high-speed fuses, are electrical protection devices specially designed to protect semiconductor circuits, especially sensitive semiconductor components such as IGBTs (insulated gate bipolar transistors).

The main functions and features of semiconductor fuses (IGBT fuses) include:

Fast response: These fuses can respond to overload or short circuit conditions in the circuit in a very short time (usually within 10 milliseconds or less), thereby quickly cutting off the circuit and protecting semiconductor components from damage.

Current limiting capability: They can limit the peak current, arc voltage, etc. in the circuit, thereby preventing excessive current from damaging semiconductor components.

Multiple applications: Semiconductor fuses are widely used in power electronics, such as inverters, motor drives, photovoltaic inverters, solid-state relays, etc., as well as protecting semiconductor devices such as IGBTs from abnormal conditions such as short circuits, overvoltages, and overcurrents.

‌Structural features‌: Semiconductor fuses usually have specially designed component outlines and main structures, such as using oxidant-resistant fine silver as fuse elements and thermally stable alumina ceramics as fuse bodies‌.

It should be noted that although IGBT fuses play an important role in protecting semiconductor components such as IGBTs, they still need to be selected and configured according to specific working conditions, current, voltage and other parameters in actual applications to ensure that they can play the best protection effect‌.

In addition, IGBT itself is a new type of semiconductor device with high input impedance and low output impedance. It is widely used in many fields such as automatic control, electric vehicles, and home appliance industries‌. And IGBT fuses are one of the key components to protect these important semiconductor components from damage.