SAP15 is a special audio power amplifier tube. Composite tube structure, magnification up to 20,000 times. The transistor has built-in temperature compensation diode, which solves the technical problem of temperature compensation delay in the power amplifier circuit. The temperature compensation diode is placed in the center of the transistor chip, which can quickly and synchronously detect the change of the transistor temperature, and correct the bias current to keep it constant. Therefore, the SAP15N\/P pair is particularly suitable for transistor Class A power amplifier circuits. Stable state, high efficiency, stable and safe work. SAP15N\/P also has the advantages of good linearity, low saturation voltage drop and high power utilization.The SAP15N\/P parameters are as follows:VCBO=160V; VCEO=160V; VEBO=5V; IC=15A; IB=1A; PC=150W; HFE=5000-20000; Tj=150℃; Tstg=-55℃-150℃.