2SB953A-Q Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -40 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -7 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 90 to 180
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.The 2SB953A-Q transistor can have a current gain of 90 to 180. The gain of the 2SB953A will be in the range from 90 to 260, for the 2SB953A-P it will be in the range from 130 to 260.Sometimes the "2S" prefix is not marked on the package - the 2SB953A-Q might only be marked "B953A-Q".The complementary NPN transistor to the 2SB953A-Q is the 2SD1444A-Q.You can replace the 2SB953A-Q with the 2SA1290, 2SA1291, 2SA1328, 2SA1329, 2SA1451, 2SA1451A, 2SA1452, 2SA1452A, 2SA1470, 2SA1471, 2SB1018, 2SB1018A, 2SB1019, 2SB1097, 2SB1135, 2SB1136, 2SB553, 2SB707, 2SB708, 2SB825, 2SB826, 2SB870, 2SB870-Q, 2SB946, 2SB946-Q, 2SB947A, 2SB947A-Q, 2SB948A, 2SB948A-Q, 2SB992, 2SB993, BD202, BD204, BD302, BD304, BD534, BD536, BD538, BD544, BD544A, BD544B, BD546, BD546A, BD546B, BD796, BD798, BD800, BD808, BD810, BDT82, BDT82F, BDT84, BDT84F, BDT92, BDT92F, BDT94, BDT94F, BDX78, D45H11, D45H11FP, D45H8, KSB1097, KSB707 or KSB708.