2SB953A 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 260
• 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 transistor can have a current gain of 90 to 260. The gain of the 2SB953A-P will be in the range from 130 to 260, for the 2SB953A-Q it will be in the range from 90 to 180.Sometimes the "2S" prefix is not marked on the package - the 2SB953A might only be marked "B953A".The complementary NPN transistor to the 2SB953A is the 2SD1444A.You can replace the 2SB953A with the 2SA1290, 2SA1291, 2SA1470, 2SA1471, 2SB1135, 2SB1136, 2SB825, 2SB826, 2SB870, 2SB946, 2SB947A, 2SB948A, BD202, BD204, BD302, BD304, BD534, BD536, BD538, BD544, BD544A, BD544B, BD546, BD546A, BD546B, BD796, BD798, BD800, BD808, BD810, BDT82, BDT82F, BDT84, BDT84F, BDX78, D45H11, D45H11FP or D45H8.