2SB817-D Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -140 V
• Collector-Base Voltage, max: -160 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -12 A
• Collector Dissipation: 100 W
• DC Current Gain (h_fe): 60 to 120
• Transition Frequency, min: 15 MHz
• Operating and Storage Junction Temperature Range: -40 to +150 °C
• Package: TO-3P

Here is an image showing the pin diagram of this transistor.The 2SB817-D transistor can have a current gain of 60 to 120. The gain of the 2SB817 will be in the range from 60 to 200, for the 2SB817-E it will be in the range from 100 to 200.Sometimes the "2S" prefix is not marked on the package - the 2SB817-D might only be marked "B817-D".The complementary NPN transistor to the 2SB817-D is the 2SD1047-D.You can replace the 2SB817-D with the 2SA1294, 2SA1301, 2SA1302, 2SA1303, 2SA1386, 2SA1386A, 2SA1386A-O, 2SA1386A-P, 2SA1386A-Y, 2SA1492, 2SA1516, 2SA1942, 2SA1943, 2SA1962, 2SA1986, 2SA2063, 2SA2120, 2SA2121, 2SA2151, 2SA2151A, 2SA2151A-O, 2SA2151A-P, 2SA2151A-Y, 2SA2223, 2SA2223A, 2SB1162, 2SB1162-Q, 2SB1163, 2SB1163-Q, 2SB1429, FJA4213, FJL4215, KTA1943, KTA1943A, KTA1962, KTA1962A, KTB817, KTB817-O, KTB817B, KTB817B-O, MAG9413, MJW1302A, MJW1302AG or NTE2329.