This part is a kind of semiconductor called DSDI60-14A.

Function of this product has Super Fast Recovery Diode.

Manufacturers : IXYS

Image and pinout :

Some of the text within the PDF file :

Super Fast Recovery Diode DSDI 60 IFAVM = 63 A VRRM = 1400-1800 V trr = 40 ns VRSM V 1400 1600 1800 VRRM V 1400 1600 1800 Type DSDI 60-14A DSDI 60-16A DSDI 60-18A A C TO-247 AD C AC A = Anode, C = Cathode Symbol IFRMS IFAVM  IFRM IFSM I2t TVJ TVJM Tstg Ptot Md Weight Conditions TVJ = TVJM TC = 60°C; rectangular, d = 0.5 tp < 10 µs; rep. rating, pulse width limited by TVJM TVJ = 45°C; t = 10 ms (50 Hz), sine t = 8.3 ms (60 Hz), sine TVJ = 150°C; t = 10 ms (50 Hz), sine t = 8.3 ms (60 Hz), sine TVJ = 45°C; t = 10 ms (50 Hz), sine t = 8.3 ms (60 Hz), sine TVJ = 150°C; t = 10 ms (50 Hz), sine t = 8.3 ms (60 Hz), sine TC = 25°C Mounting torque typical Maximum Ratings 100 A 63 A 800 A 500 A 540 A 450 A 480 A 1250 A2s 1200 A2s 1000 A2s 950 A2s [ ... ]

DSDI60-14A PDF Datasheet Download