This part is a kind of semiconductor called 2P4M.
Function of this product has Triacs sensitive gate.
Manufacturers : TGS
Image and pinout :

Some of the text within the PDF file :
TIGER ELECTRONIC CO.,LTD Product specification Triacs sensitive gate 2P4M 2P5M 2P6M GENERAL DESCRIPTION Passivated thyristors in a plastic envelope, intended for use in applications requiring high bidirectional blocking voltage capability and high thermal cycling performance. Typical applications include motor control, industrial domestic lighting, heating and staticand switching. ABSOLUTE MAXIMUM RATINGS ( Ta = 25 OC) Parameter Typ Symbol Unit 2P4M 2P5M 2P6M Repetitive peak off-state voltages VDRM VRRM 500 600 700 V RMS on-state current Non-repetitive peak on-state current Max. Operating Junction Temperature Storage Temperature IT(RMS) ITSM Tj Tstg 2.0 20 110 -45~150 A A oC oC TO-202 ELECTRICAL CHARACTERISTICS ( Ta = 25 OC) Parameter Symbol Test Conditions Repeti [ ... ]
2P4M PDF Datasheet Download
