2SB1185E Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -3 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 100 to 200
• Transition Frequency, min: 70 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 2SB1185E transistor can have a current gain of 100 to 200. The gain of the 2SB1185 will be in the range from 60 to 320, for the 2SB1185D it will be in the range from 60 to 120, for the 2SB1185F it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SB1185E might only be marked "B1185E".The complementary NPN transistor to the 2SB1185E is the 2SD1762E.The 2SB1123 (SOT-89), 2SB1123-R (SOT-89), 2SB1124 (SOT-89), 2SB1124-R (SOT-89) and BDP950 (SOT-223) is the SMD version of the 2SB1185E transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SB1185E with the 2SA1010, 2SA1010K, 2SA1012, 2SA1262, 2SA1279, 2SA1288, 2SA1288-R, 2SA1289, 2SA1289-R, 2SA1290, 2SA1290-R, 2SA1291, 2SA1291-R, 2SA1293, 2SA1307, 2SA1308, 2SA1328, 2SA1329, 2SA1388, 2SA1451, 2SA1451A, 2SA1452, 2SA1452A, 2SA1469, 2SA1469-R, 2SA1470, 2SA1470-R, 2SA1471, 2SA1471-R, 2SA1488, 2SA1488A, 2SA1634, 2SA1634-E, 2SA1635, 2SA1635-E, 2SA1742, 2SA1742-M, 2SA1743, 2SA1743-M, 2SA1744, 2SA1744-M, 2SA1869, 2SA1931, 2SA489, 2SA614, 2SA671, 2SA671-C, 2SA768, 2SA769, 2SA770, 2SA771, 2SB1015, 2SB1015-Y, 2SB1016, 2SB1016A, 2SB1017, 2SB1018, 2SB1018A, 2SB1019, 2SB1090, 2SB1090-K, 2SB1097, 2SB1097-K, 2SB1133, 2SB1133-R, 2SB1134, 2SB1134-R, 2SB1135, 2SB1135-R, 2SB1136, 2SB1136-R, 2SB1187, 2SB1187-E, 2SB1274, 2SB1274R, 2SB1366, 2SB1366-Y, 2SB1367, 2SB1368, 2SB1375, 2SB1548, 2SB1548A, 2SB1565, 2SB1565-E, 2SB1566, 2SB1566-E, 2SB434, 2SB507, 2SB507E, 2SB553, 2SB565, 2SB565-C, 2SB566, 2SB566-C, 2SB566A, 2SB566A-C, 2SB595, 2SB596, 2SB633, 2SB633-E, 2SB703, 2SB703-Q, 2SB703A, 2SB703A-Q, 2SB707, 2SB707-Y, 2SB708, 2SB708-Y, 2SB747, 2SB747-P, 2SB761, 2SB761A, 2SB762, 2SB762A, 2SB824, 2SB824-R, 2SB825, 2SB825-R, 2SB826, 2SB826-R, 2SB834, 2SB834Y, 2SB857, 2SB857-C, 2SB858, 2SB858-C, 2SB870, 2SB941, 2SB941A, 2SB942, 2SB942A, 2SB943, 2SB944, 2SB945, 2SB946, 2SB992, 2SB993, 2SB994, 2SB994-Y, 2SB995, 2SB996, BD204, BD242A, BD242B, BD242C, BD244A, BD244B, BD244C, BD304, BD536, BD538, BD540A, BD540B, BD540C, BD544A, BD544B, BD544C, BD546A, BD546B, BD546C, BD798, BD800, BD802, BD808, BD810, 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, KSA1010Y, KSA614, KSB1015, KSB1015-Y, KSB1017, KSB1097, KSB1097-Y, KSB1366, KSB1366-Y, KSB596, KSB707, KSB707-Y, KSB708, KSB708-Y, KSB834, KSB834-Y, KTA1036, KTA1036-Y, KTA1038, KTA1046Y, KTA1049, KTB1366, KTB1366Y, KTB1367, KTB1368, KTB988, KTB988Y or NTE153.