This part is a kind of semiconductor called 2CL4512H.

Function of this product has High Voltage Diodes.

Manufacturers : SiPower

Image and pinout :

Some of the text within the PDF file :

2CL4509H 2CL4512H Power Semiconductor Technology High Voltage Diodes for Micro-Wave Oven Features IF AV Outline Dimensions and Mark Unit mm Code Lot No. Cathode Mark 450mA VRRM 9kV ,12kV High reliability 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 2CL4509H 2CL4512H Code T4509H T4512H Cathode Mark . 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 450 30 100 2CL4509H 9 2CL4512H 12 (50HZHalf-sine wave, Resistance load, Ta 60 ) 50HZ Half-sine wave,Ta=25 (WP=1ms, Rectangular-wave, One-s [ ... ]

2CL4512H PDF Datasheet Download