1N4749G R0G

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Diodes - Zener - Single

The 1N4749G R0G is a single Zener diode used in a range of electronic applications. It has a built-in reverse voltage of 6.4V with an accuracy of +/- 5%, an operating current of 57mA, and a minimum of 20 mA reverse voltage in the avalanche breakdown region. It has a maximum power dissipation of 300mW and can be operated within a temperature range of -55° to +125°C.

The 1N4749G diode is used in such applications as reverse voltage protection, overvoltage protection, and surge protection. It is also used as a reference voltage regulator in analogue circuits such as voltage regulators, current sources, and voltage dividers, as well as in alternative voltage sources and pulse generator circuits. It is also used to convert AC signals to DC signals and for voltage clamping.

Working Principle

Zener diodes, including the 1N4749G R0G, operate by “Zener breakdown.” This occurs when the reverse voltage exceeds a certain voltage, known as the “Zener voltage.” When the voltage exceeds this level, a large amount of current passes through the diode and a resulting large voltage drop is created. This process is reversed in forward bias, where the diode is clamped to its Zener voltage.

The Zener breakdown process is one of the main benefits of using Zener diodes, as it enables them to be used in voltage regulation and other applications without sacrificing too much in terms of efficiency. The Zener voltage also remains relatively constant as the temperature changes, making it ideal for use in temperature-sensitive electronic designs.

Advantages of 1N4749G R0G

The 1N4749G R0G diode has several advantages to offer. It is a high-reliability device and has a small size and low cost. It also has a low and stable reverse leakage, which increases its effectiveness in both surge and reverse voltage protection applications. This diode also has a high forward and reverse surge capability, making it ideal for use in high-voltage applications. Finally, it has a low zener impedance and fast response time, making it suitable for use in acceleration and overload protection.

Conclusion

The 1N4749G R0G diode is a highly versatile device, capable of both forward and reverse current and voltage protection applications, as well as voltage regulation and signal conversion. It is robust, efficient, and has a high level of accuracy and reliability. For these reasons, it is an ideal choice for a wide range of electronic designs.

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