1N5359BRL

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The 1N5359BRL is a single Zener diode, which is an important type of diode utilized for voltage regulation in electronic circuits. As current passes through the diode, a defined voltage is dropped across it, which can be used to provide an accurately regulated voltage from an unregulated power supply. This allows power supplies to be designed that have a regulated output without the need for an additional voltage regulator.

Application Field

The 1N5359BRL is most commonly used in power supplies and battery-operated circuits, such as those found in portable electronic devices. It is also used in voltage switching and logic circuits, where it is necessary to set a fixed voltage level. Some of its other common applications include current limiting, voltage clamping and sensitive switching circuits.

Working Principle

At low forward currents, the diode behaves like other rectifying diodes, allowing current to flow through it in the forward direction, but not in the reverse direction. When the forward current reaches a certain level, the diode begins to “breakdown” and allow current to flow in both directions. This “Zener Voltage” is determined by the amount of voltage dropped across the diode when the current reaches a particular level. The Zener Voltage of the 1N5359BRL is 5.6V.

When the diode is in the reverse-bias region and the reverse-voltage applied to its terminals reaches the Zener Voltage, the diode begins to conduct current in the reverse direction, with a low on-state resistance. This low-resistance state is maintained until the reverse voltage is increased further to a level where the diode is no longer conducting. This causes the diode to become a Zener shunt regulator and helps stabilize the circuit.

The Zener Voltage of the 1N5359BRL can be adjusted by varying the current passing through it, up to its maximum rated power dissipation of 350mW. The diode can also be used in series with a resistor in order to further control its voltage drop, as well as its power dissipation. By doing this, the diode can be used as an adjustable voltage regulator.

Conclusion

The 1N5359BRL is a single Zener diode that is often used to provide a regulated voltage from an unregulated power supply. Its most common applications are in power supplies and battery-operated circuits, as well as in voltage switching and logic circuits. The diode works by breaking down when the forward current reaches a certain level, and allowing current to flow in both directions. This gives the diode its characteristic Zener Voltage, which can be adjusted by varying the current passing through it.

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