PZU3.9BA,115

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A PZU3.9BA,115 is a single Zener diode in a DO-41 form factor. This diode is designed for use in circuit protection applications, as well as other applications such as voltage regulation or current limiting. The PZU3.9BA,115 has a maximum reverse voltage rating of 115 volts and a maximum continuous forward current rating of 500 milliamps. The Zener diode’s characteristic feature is the ability to maintain a relatively constant voltage drop even when the current flow through it changes. This makes it ideal for voltage regulation and circuit protection.

A Zener diode is a two–terminal PN-junction semiconductor device that is forward-biased in the same way as a conventional diode. When a voltage is applied to the diode’s anode, current flows through it and the diode behaves just like a standard diode. When a reverse voltage is applied, however, the diode begins to conduct current in the reverse direction, which is the Zener effect. The amount of current that the Zener diode can conduct in the reverse direction is determined by the breakdown voltage (or Zener voltage) of the device. The breakdown voltage of the PZU3.9BA, 115 is 3.9 volts.

In the context of circuit protection, the Zener diode is able to limit the reverse voltage to a desired level, thereby protecting the other components in the circuit from over–voltage. For example, when a voltage exceeding 3.9 volts is applied to the PZU3.9BA, 115, the diode will conduct current in the reverse direction and limit the voltage across the other components in the circuit to 3.9 volts, thereby protecting them from damage. The PZU3.9BA,115 can also be used to provide over–voltage protection in situations where the reverse voltage exceeds its breakdown voltage.

In addition to circuit protection, the Zener diode can also be used for voltage regulation. Since the diode is able to maintain a relatively constant voltage drop even when the current flow through it changes, it can be used to maintain a constant output voltage in circuits. For example, the PZU3.9BA,115 can be used to regulate the output voltage of a power supply to 3.9 volts. The combination of a voltage divider and a Zener diode can also be used to regulate the output voltage of a transformer.

The PZU3.9BA,115 can also be used in current limiting applications. When the current flowing through the diode exceeds its maximum continuous forward current rating, the diode will enter a reverse breakdown condition and begin to dissipate the excess current as heat. The ability of the diode to dissipate the excess current makes it an ideal choice for applications where current limiting is required.

In summary, the PZU3.9BA,115 is a single Zener diode that is designed for use in circuit protection, voltage regulation, and current limiting applications. The diode’s maximum reverse voltage rating is 115 volts and its maximum continuous forward current rating is 500 milliamps. The diode’s breakdown voltage is 3.9 volts. Its ability to maintain a relatively constant voltage drop even when the current flow through it changes makes it an ideal choice for applications where voltage regulation or current limiting are required.

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