This part is a kind of semiconductor called C4636.

Function of this product has 2SC4636.

Manufacturers : Sanyo Semicon Device

Image and pinout :

Some of the text within the PDF file :

Ordering number:EN3705A NPN Triple Diffused Planar Silicon Transistor 2SC4636 1800V/10mA High-Voltage Amplifier, High-Voltage Switching Applications Features · High breakdown voltage (VCEO min=1800V). · Small Cob (typical Cob=1.4pF). · Full-isolation package. · High reliability (Adoption of HVP process). Package Dimensions unit:mm 2079B [2SC4636] 10.0 4.5 2.8 3.5 3.2 7.2 16.0 16.1 0.9 1.2 3.6 0.75 1 2 3 14.0 Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Collector-to-Base Voltage Collector-to-Emitter Voltage Emitter-to-Base Voltage Collector Current Collector Current (Pulse) Collector Dissipation Junction Temperature Storage Temperature Symbol VCBO VCEO VEBO IC ICP PC Tj Tstg Conditions 2.55 2.55 1 : Base 2 : Collector 3 : Emitter SANYO : TO-220FI (LS) [ ... ]

C4636 PDF Datasheet Download