BUY DK-438 https://www.utsource.net/itm/p/1573843.html

DK-438 is a SIP19 (Single In-line Package) MIT (Metal Insulated Semiconductor) transistor manufactured by Diodes Incorporated. It is a NPN bipolar junction transistor (BJT) with a maximum collector current of 1A and a maximum collector-emitter voltage of 40V. The maximum power dissipation is 1.5W. The DK-438 is designed for use in general purpose switching and amplification applications. It is suitable for use in audio amplifiers, power supplies, and other circuits where high current and voltage are required. It is also suitable for use in low-noise circuits. (For reference only)