btc945a3.pdf datasheet:

Spec. No. : C204A3 Issued Date : 2003.04.01 CYStech Electronics Corp.Revised Date : 2014.06.10 Page No. : 1 / 7 General Purpose NPN Epitaxial Planar Transistor BTC945A3Description The BTC945A3 is designed for use in driver stage of AF amplifier and low speed switching. Complementary to BTA733A3. Pb-free package Symbol Outline BTC945A3 TO-92 BBase CCollector EEmitter E C B Ordering Information Device Package ShippingTO-92 BTC945A3-X-TB-G 2000 pcs / Tape & Box (Pb-free lead plating and halogen-free package)TO-92 1000 pcs/ bag, 10 bags/box, BTC945A3-X-BK-G (Pb-free lead plating and halogen-free package) 10boxes/carton Environment friendly grade : S for RoHS compliant products, G for RoHS compliant and green compound products Packing spec, TB :2000 pcs/tape & box; BK: 1000 pcs / bag, 10 bags/box, 10 boxes/cart