This part is a kind of semiconductor called 2CL3512.

Function of this product has High Voltage Diodes.

Manufacturers : SiPower

Image and pinout :

Some of the text within the PDF file :

2CL3509 2CL3512 Power Semiconductor Technology High Voltage Diodes for Micro-wave Oven Features IF AV 350mA VRRM 9kV 12kV High reliability Outline Dimensions and Mark Unit mm Code Lot No. Cathode Mark 7.5 0.5 1.2 0.03 Applications Rectification for high voltage power supply of magnetron in Micro wave oven and others 22min 22 0.5 22min . Type 2CL3509 Code T3509 T3512 Cathode Mark . 2CL3512 Limiting Values Absolute Maximum Rating Item Repetitive Peak Reverse Voltage Average Forward Current Forward Surge Current Reverse Surge Current Virtual Junction Temperature Storage Temperature Symbol VRRM IF(AV) IFSM IRSM T(vj) Tstg Unit kV mA A mA 350 30 100 2CL3509 9 2CL3512 12 (50HZHalf-sine wave, Resistance load, Ta 60 ) 50HZ Half-sine wave,1cycle,Ta=25 (WP=1ms, Rectangular-wave, One-s [ ... ]

2CL3512 PDF Datasheet Download