ZMY47-GS18 Discrete Semiconductor Products

ZMY47-GS18 Application Field and Working Principle

Diodes - Zener - Single

A Zener diode is a special type of diode that operates in the reverse-bias mode. A reverse-bias mode means that the diode is connected so that the positive terminal of the voltage source is connected to the cathode of the diode and the negative terminal is connected to the anode. Zener diodes are designed to operate in this way and their exact construction allows them to operate in a different manner than normal diodes when connected in reverse-bias.

The ZMY47-GS18 is a single Zener diode with a maximum Zener voltage of 18V and a power dissipation rating of 500mW. It is constructed with an epitaxial planar construction and has a temperature coefficient of 8.4μV/°C. The ZMY47-GS18 is designed for a variety of applications including voltage and current regulation, voltage stabilization, voltage-limiting, and overvoltage protection.

When connected in a reverse-bias circuit, the Zener diode behaves like a normal diode and blocks current from passing through the diode until a certain reverse bias voltage is reached. This voltage is called the Zener voltage and for the ZMY47-GS18 it is 18V. When the applied reverse bias voltage reaches the Zener voltage, a small amount of leakage current will begin flowing through the diode. As the applied reverse bias voltage increases, the amount of current flowing through the diode will also increase.

The main purpose of a Zener diode is to provide a consistent voltage level across a circuit even when the applied voltage changes. This is done by connecting the diode in parallel with a load and allowing the Zener diode to regulate the voltage across the load. As the applied voltage changes, the Zener diode will adjust the voltage drop across it so that the voltage across the load remains constant.

The Zener diode can also be used as a voltage limiter to protect sensitive components from voltage spikes. When the voltage across the Zener diode exceeds its Zener voltage, it quickly begins conducting current which limits the voltage across the circuit. This can be used to protect sensitive components like transistors and microcontrollers from large voltage spikes that can cause damage.

The ZMY47-GS18 is a popular single Zener diode with a variety of applications. It is designed to provide a consistent voltage level across a circuit and is well-suited for use in voltage stabilization, voltage-limiting and overvoltage protection. With a maximum Zener voltage of 18V and a power dissipation rating of 500mW, the ZMY47-GS18 is an ideal choice for a variety of applications.