This part is a kind of semiconductor called FT16xxH.
Function of this product has High Commutation Triac.
Manufacturers : Fagor
Image and pinout :
Some of the text within the PDF file :
FT16...H HIGH COMMUTATION TRIAC TO220-AB On-State Current 16 Amp Gate Trigger Current ≤ 25 mA to ≤ 50 mA Off-State Voltage 200 V ÷ 600 V MT2 MT1 MT2 G This series of TRIACs uses a high performance PNPN technology. These parts are intended for general purpose AC switching applications with highly inductive loads. Absolute Maximum Ratings, according to IEC publication No. 134 SYMBOL PARAMETER RMS On-state Current Non-repetitive On-State Current Non-repetitive On-State Current Fusing Current Peak Gate Current Average Gate Power Dissipation Critical rate of rise of on-state current Operating Temperature Storage Temperature CONDITIONS All Conduction Angle, TC = 100 ºC Full Cycle, 60 Hz Full Cycle, 50 Hz t = 10 ms, Half Cycle 20 µs max. Tj =125ºC Tj =125ºC IG = 2x IGT, tr ≤100ns [ ... ]