The BZV55B5V6 L1G is a 500mW 2% Small Signal Zener Diode manufactured by Taiwan Semiconductor. It is a type of semiconductor diode used to regulate the flow of current in a circuit, primarily by blocking the undesirable flow of current when the circuit exceeds a predetermined voltage level. This diode features a zener voltage range of 5.6V with a tolerance of ±2%, a test current of 5 mA, and a maximum operating temperature of 175 °C. It is packaged in a miniature leadless (MELF) form factor, making it suitable for use in circuit applications with space limitations or in which low-profile components are desired.