2SB688O Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -120 V
• Collector-Base Voltage, max: -120 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -8 A
• Collector Dissipation: 80 W
• DC Current Gain (h_fe): 80 to 160
• Transition Frequency, min: 12 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-3P

Here is an image showing the pin diagram of this transistor.The 2SB688O transistor can have a current gain of 80 to 160. The gain of the 2SB688 will be in the range from 55 to 160, for the 2SB688R it will be in the range from 55 to 110.Sometimes the "2S" prefix is not marked on the package - the 2SB688O might only be marked "B688O".The complementary NPN transistor to the 2SB688O is the 2SD712O.You can replace the 2SB688O with the 2SA1093, 2SA1093-O, 2SA1104, 2SA1105, 2SA1106, 2SA1146, 2SA1146-O, 2SA1186, 2SA1264, 2SA1264-O, 2SA1264N, 2SA1264N-O, 2SA1265, 2SA1265-O, 2SA1301, 2SA1301O, 2SA1302, 2SA1302O, 2SA1303, 2SA1386, 2SA1386A, 2SA1386A-O, 2SA1386A-P, 2SA1386A-Y, 2SA1490, 2SA1491, 2SA1492, 2SA1516, 2SA1633, 2SA1694, 2SA1695, 2SA1788, 2SA1804, 2SA1804-O, 2SA1805, 2SA1805-O, 2SA1940, 2SA1940O, 2SA1941, 2SA1941O, 2SA1942, 2SA1942O, 2SA1943, 2SA1943N, 2SA1943O, 2SA1986, 2SA1986-O, 2SA2062, 2SA2063, 2SA2120, 2SA2120-O, 2SA2121, 2SA2121-O, 2SA2151, 2SA2151A, 2SA2151A-O, 2SA2151A-P, 2SA2151A-Y, 2SB1162, 2SB1162-S, 2SB1163, 2SB1163-S, 2SB1361, 2SB1361-S, 2SB1362, 2SB1429, 2SB1429-O, 2SB778, 2SB778-O, 2SB816, 2SB817, 2SB863, 2SB863-O, 2SB966, FJA4210, KTA1943, KTA1943A, KTA1943AO, KTA1943O, KTA1962, KTA1962A, KTA1962AO, KTA1962O, KTB688, KTB688-O, KTB688B, KTB688B-O, KTB778, KTB778-O, KTB817, KTB817B, MJW1302A, MJW1302AG, NTE2329, TTA0001, TTA0002 or TTA1943.