bsp52t3g.pdf datasheet:

BSP52T1G, BSP52T3GNPN Small-SignalDarlington TransistorThis NPN small signal Darlington transistor is designed for use inswitching applications, such as print hammer, relay, solenoid and lampdrivers. The device is housed in the SOT-223 package, which ishttp://onsemi.comdesigned for medium power surface mount applications.FeaturesMEDIUM POWER The SOT-223 Package can be soldered using wave or reflow. TheNPN SILICONformed leads absorb thermal stress during soldering, eliminating theSURFACE MOUNTpossibility of damage to the die Available in 12 mm Tape and ReelDARLINGTON TRANSISTORUse BSP52T1 to Order the 7 Inch/1000 Unit Reel PNP Complement is BSP62T1COLLECTOR 2,4 These Devices are Pb-Free, Halogen Free/BFR Free and are RoHSCompliantBASE1MAXIMUM RATINGS (TC = 25C unless otherwise noted)Rating Symbol Max UnitEMITTER 3Colle