BZX585-B15,115

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The BZX585-B15 (also known as 1N5711) is a single Zener diode with a breakdown voltage of 15 volts. This diode is widely used in various applications, from power protection and voltage regulation to signal conditioning and low-loss linear regulation. It has many advantages such as low capacitance, high speed switching, and good temperature stability.

Application of BZX585-B15

The BZX585-B15 is a commonly used Zener diode in power protection and voltage regulation applications. It acts as a unilateral switch for AC and DC overvoltage, and it is especially suitable for voltage reference and voltage limiting in switching power supplies. It is also widely used as a voltage regulator in linear regulators, and can be used as a clamp circuit to protect against voltage surges. Additionally, it can be used in signal conditioning, noise suppression, coupling and buffer. In this way, it can protect ICs and other components from being damaged by high-voltage spikes.

Working Principle of BZX585-B15

The Zener diode has a heavily doped region of p-type semiconductor located in between the cathode and anode region. The heavily doped area of the p-type semiconductor is known as the Zener junction, and when a reverse voltage is applied across the Zener junction, it starts to conduct current, referred to as Zener current. The voltage at which the diode begins to conduct current, is called the breakdown voltage.

In the BZX585-B15, the breakdown voltage is 15 volts. This diode has a high breakdown voltage and yet it provides the desired regulation even at very low temperatures. As the current through the diode increases, the Zener voltage increases slightly due to the Zener effect. This provides the Zener diode with voltage regulation over a range of temperatures. Furthermore, due to its significant reverse breakdown current, it is able to withstand high voltages and high temperatures. This also helps improve the efficiency of the diode and make it more reliable.

Conclusion

The BZX585-B15 is a single Zener diode with a breakdown voltage of 15 volts. It has many applications such as power protection, voltage regulation, signal conditioning and low-loss linear regulation. It is especially suitable for voltage reference and voltage limiting in switching power supplies. The Zener effect is what allows it to provide voltage regulation over a range of temperatures while being able to withstand high voltages and high temperatures. This diode is a great choice for a variety of applications, and can help improve the efficiency and reliability of the overall system.

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