1N4749A B0G

Diodes - Zener - Single

1N4749A B0G is a type of single Zener diode produced by ON Semiconductor. It provides a stable voltage in applications such as voltage clamping and protection circuits, as well as constant current sources and reference voltages.

Application Field

The 1N4749A B0G is designed to deliver stability and reliability in a wide range of applications such as voltage clamping and protection circuits, as well as constant current sources and reference voltages. It can be used in AC/DC power supplies, switching power supplies, voltage regulation circuits, and automotive applications, among others.

Working Principle

A Zener diode requires a reverse-bias current to operate. When the reverse-bias voltage reaches a certain value (the breakdown voltage, or zener voltage), the diode will break down and allow current to flow in both directions. This is the Zener effect, and it allows the diode to regulate the voltage at a specific level.

The 1N4749A B0G diode operates by breaking down when the forward voltage reaches 6.2V. It has a maximum power dissipation rating of 500mW and a thermal resistance of 100°C/W. The device is capable of supplying currents from 0.25mA to 100mA, and it has a maximum reverse leakage current of 9μA. The maximum reverse working voltage of the diode is 5.6V.

These specifications make the 1N4749A B0G suitable for a variety of applications and enable it to deliver stable and reliable performance over a wide range of conditions. Its small size and low cost also make it an attractive option for many types of circuits.

The 1N4749A B0G can operate as a stand-alone device or as part of larger circuits, and it can be used in combination with other components such as transistors and operational amplifiers. When combined with other components, the Zener diode can be used to generate constant current sources, regulate voltages, protect against overvoltage, and create voltage reference points.