FGA25N120 IGBT

• The FGA25N120 is a high voltage and high current IGBT with NPT Trench Technology. The IGBT can switch 1200V with a current rating of upto 50A. It also has a very low gate saturation voltage of 2V allowing it to be used in low voltage driver side designs.
• The FGA25N120 is a high voltage high current IGBT, it can be used to switch high voltage values as high a 1200V with a current capability of 50A at 25°C. It can further handle high pulse currents of upto 90A making suitable in application where high voltage and switching current spikes are involved.
• Since the IGBT uses Non Punch Though (NPT) Technology it has very low switching loss and low saturation voltage making it feasible to be used in low voltage switching driver designs and get comparatively high efficiency for its switching range. Like all IGBT’s the FGA25N also suffers from low switching speed and high voltage drop across collector and emitter compared with MOSFETs. So if you design requires high efficiency and faster switching device then you should prefer MOSFETs over IGBT. IGBT are preferred in designs where high switching voltage and current is involved.
• Once the gate is triggered the IGBT will remain on even after the trigger voltage is removed similar to a MOSFET. This is because of the gate capacitance present on the input gate pin of IGBT. To turn off the device the gate capacitance has to be discharged by simply connecting the gate pin of IGBT to ground. Because of this normally the Gate pin of IGBT is connected to ground though a pull down resistor of 10k or a gate driver IC like IR2104 is used.
• When IGBT is used in switching circuits, care should be taken that it is not used in high frequency designs since the collector emitter voltage drop (switching loss) of the IGBT increase with increase in switching frequency.

Applications

• High Voltage, high current switching devise
• Induction Heating
• Microwave Oven
• Large Solenoids
• Tesla Coils
• Converters or Inverter circuits