2SB434O Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -3 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 70 to 140
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The 2SB434O transistor can have a current gain of 70 to 140. The gain of the 2SB434 will be in the range from 40 to 240, for the 2SB434R it will be in the range from 40 to 80, for the 2SB434Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SB434O might only be marked "B434O".The complementary NPN transistor to the 2SB434O is the 2SD234O.You can replace the 2SB434O with the 2N6107, 2N6107G, 2N6108, 2N6109, 2N6109G, 2N6110, 2N6475, 2N6490, 2N6490G, 2N6491, 2N6491G, 2SA1010, 2SA1012, 2SA1012O, 2SA1262, 2SA1279, 2SA1279-O, 2SA1288, 2SA1288-Q, 2SA1289, 2SA1289-Q, 2SA1290, 2SA1290-Q, 2SA1291, 2SA1291-Q, 2SA1293, 2SA1293-O, 2SA1307, 2SA1307-O, 2SA1308, 2SA1308-O, 2SA1328, 2SA1328-O, 2SA1329, 2SA1329-O, 2SA1388, 2SA1388-O, 2SA1451, 2SA1451-O, 2SA1451A, 2SA1451A-O, 2SA1452, 2SA1452-O, 2SA1452A, 2SA1452A-O, 2SA1469, 2SA1469-Q, 2SA1470, 2SA1470-Q, 2SA1471, 2SA1471-Q, 2SA1488, 2SA1488A, 2SA1634, 2SA1635, 2SA1725, 2SA1725-P, 2SA1726, 2SA1726-P, 2SA1869, 2SA1869O, 2SA489, 2SA489-O, 2SA614, 2SA614O, 2SA671, 2SA768, 2SA769, 2SA770, 2SA771, 2SB1015, 2SB1016, 2SB1016-O, 2SB1016A, 2SB1016A-O, 2SB1017, 2SB1017-O, 2SB1018, 2SB1018-O, 2SB1018A, 2SB1018A-O, 2SB1019, 2SB1019-O, 2SB1090, 2SB1097, 2SB1133, 2SB1133-Q, 2SB1134, 2SB1134-Q, 2SB1135, 2SB1135-Q, 2SB1136, 2SB1136-Q, 2SB1185, 2SB1187, 2SB1274, 2SB1366, 2SB1367, 2SB1367-O, 2SB1368, 2SB1368-O, 2SB1548, 2SB1548-Q, 2SB1548A, 2SB1548A-Q, 2SB507, 2SB553, 2SB553-O, 2SB565, 2SB566, 2SB566A, 2SB595, 2SB595-O, 2SB596, 2SB596-O, 2SB633, 2SB703, 2SB703A, 2SB707, 2SB708, 2SB747, 2SB761, 2SB761-Q, 2SB761A, 2SB761A-Q, 2SB762, 2SB762-Q, 2SB762A, 2SB762A-Q, 2SB824, 2SB824-Q, 2SB825, 2SB825-Q, 2SB826, 2SB826-Q, 2SB834, 2SB857, 2SB858, 2SB870, 2SB941, 2SB941-Q, 2SB941A, 2SB941A-Q, 2SB942, 2SB942-Q, 2SB942A, 2SB942A-Q, 2SB945, 2SB946, 2SB992, 2SB992-O, 2SB993, 2SB993-O, 2SB994, 2SB995, 2SB995-O, 2SB996, 2SB996-O, BD204, BD242A, BD242B, BD242C, BD244A, BD244B, BD244C, BD304, BD536, BD538, BD540A, BD540B, BD540C, BD544A, BD544B, BD544C, BD546A, BD546B, BD546C, BD708, BD710, BD712, BD744A, BD744B, BD744C, BD798, BD800, BD802, BD808, BD810, BD908, BD910, BD912, BD936, BD936F, BD938, BD938F, BD940, BD940F, BD950, BD952, BD954, BDT82, BDT82F, BDT84, BDT84F, BDT86, BDT86F, BDT92, BDT92F, BDT94, BDT94F, BDT96, BDT96F, BDX78, D44C10, D44C11, D44C12, D44C7, D44C8, D44C9, D45C10, D45C11, D45C12, D45C7, D45C8, D45C9, D45H11, D45H11FP, D45H8, KSA1010, KSA614, KSA614O, KSB1015, KSB1017, KSB1017-O, KSB1097, KSB596, KSB596-O, KSB707, KSB708, KSB834, KTA1038, KTA1038-O, KTA1049, KTA1049O, KTB1366, KTB1367, KTB1367O, KTB1368, KTB1368O, KTB988, NTE153 or NTE197.