The BZT55C15 L1G with Zener Diodes Quadro Mini-MELF RoHS is a type of diode manufactured by Taiwan Semiconductor. It is a SOD-123 package, has a leaded package style, and is RoHS compliant. It has a maximum power dissipation of 150 mW and has a maximum voltage drop of 15V. It is well-suited for use in a variety of applications such as voltage regulation, over-voltage protection, and voltage multipliers. It is constructed of silicon material and has an insulation resistance of 500 Mohm, making it very reliable. It is able to operate at temperatures ranging from -55°C to 150°C.