Infineon Technologies AG have introduced the first Insulated Gate Bipolar Transistor modules of its IHM/IHV B series. The new device enables efficient power inverter designs for use in harsh environments with high load and temperature cycling requirements, such as in traction drives for locomotives, trains and tramways. The product has improved thermal behavior, an expanded operating temperature of up to +150°C and a high load cycling capability.
The new modules provide up to 50 percent more power with the same inverter size, its thermal performance enables inverter designs to feature up to 50 percent higher output current. The maximum operating temperature of the new modules is +150°C, up from +125°C for previous modules. Another benefit is the possibility of the mechanical compatibility with the previous IHM-A family.
The IHM/IHV B modules have been equipped with Aluminium Silicon Carbide (ALSiC) base plates. In combination with isolation ceramics, the use of the AlSiC base plates improved the thermal cycling capability by a factor of 10.
The new modules meet the fire protection requirements. They cover the voltage ranges of 1,200 V, 1,700 V and 3,300 V, and manage currents above 3,600 A.
