2SA814-Y Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -100 V
• Collector-Base Voltage, max: -100 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 15 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 30 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 2SA814-Y transistor can have a current gain of 120 to 240. The gain of the 2SA814 will be in the range from 70 to 240, for the 2SA814-O it will be in the range from 70 to 140.Sometimes the "2S" prefix is not marked on the package - the 2SA814-Y might only be marked "A814-Y".The complementary NPN transistor to the 2SA814-Y is the 2SC1624-Y.The 2SA1201 (SOT-89), 2SA1201-Y (SOT-89), 2SA1368 (SOT-89), 2SB805 (SOT-89), 2SB806 (SOT-89), 2SD1006 (SOT-89), 2SD1007 (SOT-89), KTA1661 (SOT-89) and KTA1661Y (SOT-89) is the SMD version of the 2SA814-Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA814-Y with the 2SA1006, 2SA1006A, 2SA1078, 2SA1306, 2SA1306-Y, 2SA1306A, 2SA1306A-Y, 2SA1306B, 2SA1306B-Y, 2SA1667, 2SA1668, 2SA1859, 2SA1859A, 2SA1930, 2SA815, 2SA815-Y, 2SA913, 2SA913A, 2SA968, 2SA968A, 2SA968AY, 2SA968B, 2SA968BY, 2SA968Y, 2SA985, 2SA985A, 2SB1016, 2SB1016-Y, 2SB1016A, 2SB1016A-Y, 2SB1085, 2SB1186, 2SB1367, 2SB1367-Y, 2SB546, 2SB546-Y, 2SB547, 2SB595, 2SB595-Y, 2SB940, 2SB940-P, 2SB940A, 2SB940A-P, 2SB995, 2SB995-Y, BD240C, BD242C, BD244C, BD540C, BD544C, BD546C, BD802, BD940, BD940F, BD942, BD942F, BD954, BD956, BDT30C, BDT86, BDT86F, BDT88, BDT88F, KSB546, KSB546-Y, KTA1038, KTA1038-Y, KTA1049, KTA1049Y, KTA1659, KTA1659A, KTA1659AY, KTA1659Y, KTA968, KTA968A, KTA968AY, KTA968Y, KTB1367, KTB1367Y, KTB1369, KTB1369Y, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF15031 or MJF15031G.