The 1SMA5956 R3G with Zener Diodes DO-214AC SMA 1500mW 5% Zener Diode is a device manufactured by Taiwan Semiconductor. It is composed of two components, a semiconductor and a Zener diode. The semiconductor is a Silicon epitaxial planar transistor a PNP type Power Transistor, and its maximum collector current rating is 0.2 Amps, and its maximum total power dissipation is 1500mW. The Zener diode is a DO-214AC SMA package type, with a voltage rating of 5%, and a power dissipation rating of 1500mW. This is an ideal device for controlling the voltage in small electronic circuits.