This part is a kind of semiconductor called C4466.

Function of this product has 2SC4466.

Manufacturers : Sanken electric

Image and pinout :

Some of the text within the PDF file :

2SC4466 Silicon NPN Triple Diffused Planar Transistor (Complement to type 2SA1693) sAbsolute maximum ratings (Ta=25°C) Symbol VCBO VCEO VEBO IC IB PC Tj Tstg 2SC4466 120 80 6 6 3 60(Tc=25°C) 150 –55 to +150 Unit V V V A A W °C °C Application : Audio and General Purpose (Ta=25°C) 2SC4466 10max 10max 80min 50min∗ 1.5max 20typ 110typ V pF 20.0min 4.0max sElectrical Characteristics Symbol ICBO IEBO V(BR)CEO hFE VCE(sat) fT COB ∗hFE Rank Conditions VCB=120V VEB=6V IC=50mA VCE=4V, IC=2A IC=2A, IB=0.2A VCE=12V, IE=–0.5A VCB=10V, f=1MHz External Dimensions MT-100(TO3P) 5.0±0.2 15.6±0.4 9.6 2.0 1.8 4.8±0.2 2.0±0.1 Unit µA µA 19.9±0.3 4.0 V a b ø3.2±0.1 MHz 2 3 1.05 +0.2 -0.1 0.65 +0.2 -0.1 1.4 O(50 to100), P(70 to140), Y(90 to180) 5.45±0.1 B C E sTypical Switchin [ ... ]

C4466 PDF Datasheet Download