APTDF400AK170 is a dual diodes power module produced by APT company. This module features ultra fast recovery times, soft recovery characteristics, high blocking voltage, high current, low leakage current, low stray inductance, etc. It is applied to anti-parallel diode, uninterruptible power supply (UPS), induction heating, welding equipment, high speed rectifiers, etc.
The APTDF400AK170 is a dual‑diode power module designed for high‑current applications such as UPS systems, induction heating, welding equipment, and high‑speed rectifiers. It offers ultra‑fast recovery, low leakage, and a symmetrical design with M5 power connectors for direct mounting to a heatsink.
Key specifications include a maximum DC reverse voltage of 1700 V, a continuous forward current of 400 A at 55 °C, and a low junction‑to‑case thermal resistance of 0.095 °C/W. The datasheet also provides detailed electrical, dynamic, and thermal characteristics, as well as typical performance curves and recommended mounting torque values.
| Maximum DC reverse voltage | 1700 V |
|---|---|
| Continuous forward current | 400 A @ Te = 55 °C |
| RMS forward current | 500 A |
| Non‑repetitive forward surge current | 1500 A |
| Junction‑to‑case thermal resistance | 0.095 °C/W |
| Package weight | 280 g |
| Operating junction temperature range | -40 °C to 150 °C |
The device can withstand a maximum DC reverse voltage of 1700 V.
At 400 A and 25 °C the forward voltage is typically between 22 V and 25 V.
The recommended mounting torque for the terminals is between 5 and 35 N·m.
The junction can operate from –40 °C to 150 °C, and the case from –40 °C to 100 °C.