This part is a kind of semiconductor called 1N6620.

Function of this product has Ultra Fast Recovery Rectifier Diode.

Manufacturers : SEMTECH

Image and pinout :

Some of the text within the PDF file :

POWER DISCRETES Description Quick reference data V = 200 - 1000V R IF = 1.5 - 2.0 A trr = 30 - 60ns V = 1.6 -1.95V F 1N6620 THRU 1N6625 Axial Leaded Hermetically Sealed Ultra Fast Recovery Rectifier Diode Features Low reverse leakage current Hermetically sealed in fused metal oxide Good thermal shock resistance Low forward voltage drop Avalanche capability Absolute Maximum Ratings Electrical specifications @ TA = 25°C unless otherwise specified. Symbol 1N6620 1N6621 1N6622 1N6623 1N6624 1N6625 Units Working Reverse Voltage Average Forward Current @ 55°C in free air, lead length 0.375" Non-Repetitive Surge Current (tp = 8.3mS @ VR & TJMAX) (tp = 8.3mS, @ VR & 25°C) Storage Temperature Range VRWM 200 400 600 800 900 1000 V IF(AV) 2.0 2.0 2.0 1.5 1.5 1.5 A IFSM 20 20 20 20 20 15 [ ... ]

1N6620 PDF Datasheet Download