onsemi — FS7 IGBTs

IGBTs made with the 7th generation of field stop technology (FS7) from onsemi offer high efficiency in power converters and adaptors, and in motor systems.

In high-frequency switching power-converter applications, a substantial contribution to power losses comes from switching; in high-power three-phase motors, conduction losses have a larger impact. So onsemi has tuned the inherent IGBT trade-off between collector-emitter saturation voltage and turn-off energy differently in the two series of 1,200 V FS7 IGBTs:

• The S series is optimized for low turn-off energy, to minimize switching losses in high-frequency converters and inverters
• The R series is optimized for low saturation voltage, to minimize conduction losses in motors, and in solid-state relays

The FS7 IGBTs are supplied with current ratings ranging from 40 A to 160 A, and in three package styles:

• A standard TO-247 three-lead package. Products are available now.
• A power TO-247 three-lead package. Products are available now.
• A power TO-247 four-lead package. Products are planned for release in 2024.

The power four-lead package includes a Kelvin source lead, the effect of which is to produce a substantial reduction in turn-on energy, making for even more efficient switching.

Every production unit is dynamically tested to give OEMs high confidence in the operation and reliability of the IGBT in their application.