BZX84C3V9T-7-F

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BZX84C3V9T-7-F belongs to a type of single Zener diode. It is mostly used to stabilise voltage in circuits, by allowing enough current to flow in one direction. The current flows from the anode to the cathode, through a semiconductor material with a large current control ratio. Zener diodes offer a wide range of reverse breakdown voltages, current dissipation, climates, and response times.

BZX84C3V9T-7-F is mainly used in AC-DC power supplies, clamping voltage regulators, battery protection circuits, and over-voltage protection circuits. Its key features are its surface-mount style construction and the ability to dissipate power up to 1.0 watts. It also has a low leakage current, the reverse voltage breakdown is 3.9 volts, and it can with stand an operating temperature of up to 175 degrees Celsius.

The working principle of this diode is based on the junction principle of p-n semiconductor material. It works as a voltage regulator by allowing current to flow from anode to cathode when a forward voltage exceeds a certain breakdown voltage. So if the applied voltage is higher than the breakdown voltage, a strong current flows through the junction and the voltage across it will be maintained at a certain level.

When a direct current gets applied to the diode in the reverse direction, a reverse breakdown voltage is reached and current flows in the reverse direction. This property of zener diodes makes them ideal for regulating voltages when used in combination with capacitors, resistors, and inductors. By adding a resistor in series with the diode, the user can control the voltage by adjusting the amount of current flowing through the diode.

The power dissipation of a BZX84C3V9T-7-F can reach up to 1.0 watts, which is enough for a wide range of applications. It is suitable for use with voltage regulators, battery protection circuits, and other reverse voltage protection circuits. The diode itself is constructed in a surface mount package, making it easy to install in even the most complex PCB designs.

The response time of BZX84C3V9T-7-F is also fast enough for short circuit protection, while the reverse leakage current is low enough to prevent damage to sensitive components. Overall, this type of single Zener diode is a versatile component that can be used in a wide range of applications.

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