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951206 - 1200V 100A Replacement IGBT Power Module

Packaging: pack of 1
$2,525.18/EA $1,512.93/pack of 1 only $1,512.93/EASave 40%

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OVERVIEW

Get Your Welder Back Up and Running

Is your inverter welder throwing error codes or refusing to strike an arc? A blown power module is one of the most common causes of failure in modern welding machines. This 1200V 100A IGBT Module is the heavy-duty replacement part you need to fix the heart of your machine. The IGBT (Insulated-Gate Bipolar Transistor) acts as the high-speed switch that controls the welding power, and when it fails, your work comes to a grinding halt.

Designed to meet or exceed original equipment specifications, this module handles up to 1200 volts and 100 amps, making it suitable for powerful industrial welders. It is built to withstand the heat and electrical stress of daily welding, whether you are running long beads in a fabrication shop or performing on-site repairs. Installing a high-quality replacement ensures your arc remains smooth, stable, and consistent.

Installation Tip: When replacing an IGBT, always clean the heatsink surface thoroughly and apply a fresh, thin layer of thermal paste to ensure proper cooling. It is also highly recommended to check the gate driver board and surrounding resistors, as a failure in the control circuit can sometimes cause the new IGBT to fail prematurely. This part is a direct replacement for compatible ESAB machines and other inverters requiring these specific voltage and amperage ratings.

Additional Information
Amperage:100 A
Voltage:1200 V
Packaging Description:1 Per Ea
Component Type:IGBT Module
Application:Inverter Power Source Repair
Mounting Type:Chassis Mount / Heatsink

INCLUDED

  • 1 x IGBT Module (1200V, 100A)
  • Installation instructions (if applicable)

APPLICATIONS

  • Repair of industrial inverter welding power sources
  • Replacement of failed power switching modules
  • Maintenance of high-voltage DC power supplies
  • Restoration of ESAB welding equipment functionality

FAQ

An IGBT (Insulated-Gate Bipolar Transistor) is a power switch that turns the electrical current on and off thousands of times per second. In a welder, it regulates the power to create a stable, controllable arc.

Common signs include the machine turning on but having no output, tripping the circuit breaker immediately, or displaying specific error codes related to the power module. A multimeter can be used to test for short circuits between the terminals.

Yes, absolutely. A thin, even layer of thermal compound must be applied between the IGBT module and the heatsink to transfer heat away from the component. Without it, the new module will overheat and fail very quickly.

No, it is specific to machines that require a 1200V 100A IGBT with this specific form factor. While it is often an ESAB replacement part, you must verify the specs and part number of your old component before ordering.

Overheating due to dust buildup, exceeding the duty cycle, voltage spikes from 'dirty' input power, or component age can cause failure. Sometimes a failure in the gate driver circuit can also destroy the IGBT.

Generally, using a higher amperage rating (e.g., 150A instead of 100A) is safe if the voltage rating and physical package are identical, but you should never use a lower rating. However, sticking to the original specification is recommended for best compatibility.

Typically, IGBT modules are sold as the component only. You should retain the original mounting hardware from your machine.

This is a high-quality replacement component designed to meet the rigorous electrical standards required for industrial welding equipment repair.