2SA755-A Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -4 V
• Collector Current − Continuous, max: -2 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 35 to 70
• Transition Frequency, min: 50 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 2SA755-A transistor can have a current gain of 35 to 70. The gain of the 2SA755 will be in the range from 35 to 200, for the 2SA755-B it will be in the range from 60 to 120, for the 2SA755-C it will be in the range from 100 to 200.Sometimes the "2S" prefix is not marked on the package - the 2SA755-A might only be marked "A755-A".The complementary NPN transistor to the 2SA755-A is the 2SC1419-A.You can replace the 2SA755-A with the 2N6107, 2N6107G, 2N6108, 2N6109, 2N6109G, 2N6110, 2N6125, 2N6126, 2N6133, 2N6134, 2N6475, 2N6490, 2N6490G, 2N6491, 2N6491G, 2SA671, 2SA671-A, 2SA754, 2SA754-A, BD204, BD242A, BD242B, BD242C, BD244A, BD244B, BD244C, BD304, BD536J, BD538J, BD708, BD710, BD712, BD744A, BD744B, BD744C, BD798, BD800, BD802, BD808, BD810, BD908, BD910, BD912, BDT42A, BDT42AF, BDT42B, BDT42BF, BDT42C, BDT42CF, BDT92, BDT92F, BDT94, BDT94F, BDT96, BDT96F, BDX78, D44C10, D44C11, D44C12, D44C7, D44C8, D44C9, D45C10, D45C11, D45C12, D45C7, D45C8, D45C9, KSE2955T, MJE2901T, MJE2955T, MJE2955TG, MJF2955, MJF2955G, NTE197, TIP2955T, TIP42A, TIP42AG, TIP42B, TIP42BG, TIP42C, TIP42CF or TIP42CG.