![]() ![]() ![]() From capacitor C1 through R2 and LED, Q1 will work until the voltage drop increases across C1. And, Q2 is used for increasing the current. In the below circuit of LED flasher using 2SA1015, capacitor C1 and R1 used as frequency generator to Q1 transistor which is used as switch for Q2. Where, IC is the collector current and IB is the base current of the circuit. This transistor is further divided into four groups according to the DC current gain, O, Y, G, and L and has 140, 240, 400 and 700 hfe DC current gain respectively.Īmplification factor usually determined in term of power, for calculating the current gain we use the formula: When use as an Audio frequency general purpose amplifier, can be operated in the active region. It can also be used for the switching purpose just like other PNP transistors. The main use of 2SA1015 is for audio frequency amplifier applications. Note: Complete technical details can be found in the A1015 Datashee t linked at the bottom of this page. Operating Temperature and Storage Temperature: -55℃ to +150℃. ![]() Collector Emitter Saturation Voltage: 0.3Vdc.Base Emitter Saturation Voltage: 1.1Vdc.Collector Emitter and Collector Base breakdown voltage: 50Vdc.High voltage and High current: Vceo = 50v and Ic = 150mA. ![]()
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