TF944..H is a fast switching thyristor with high voltage, high current and double side cooling, mainly used in high power inverters and choppers, UPS, railway traction, induction heating, AC motor drives and inverters.
The TF944..H fast switching thyristor is intended for high‑power inverters, UPS systems, railway traction, induction heating, AC motor drives and cycloconverters. It features double‑side cooling, high surge capability and high voltage ratings.
Key electrical parameters include a 3500 V repetitive peak voltage, 1350 A RMS on‑state current, and a 13 kA·µs surge current. Thermal data list a case‑to‑heatsink resistance of 0.006 °C/W and a clamping force of 23.5 kN. Package dimensions and mechanical details are provided for proper mounting.
| Repetitive peak voltage (VDRM) | 3500 V |
|---|---|
| On‑state RMS current (IT(RMS)) | 1350 A |
| Thermal resistance case‑to‑heatsink (Rth(c‑h)) | 0.006 °C/W |
| Clamping force | 23.5 kN |
| Storage temperature range | -40 °C to 150 °C |
| Cathode tab diameter | Ø74 max / Ø46 min |
It is used in high‑power inverters, UPS systems, railway traction, induction heating, AC motor drives and cycloconverters.
The device is rated for a repetitive peak voltage of 3500 V.
The specified clamping force is 23.5 kN.