DZ2W04700L Discrete Semiconductor Products

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The DZ2W04700L is a Zener diode which is comprised of a wider selection of the Diodes Incorporated Zener diode family. It is a two-wire JEDEC-compliant device with a cathode indicator. It is constructed from a heavily doped semiconductor material with a buried layer that limits the number of current paths in the junction. This reduces leakage current, while the zener protection ensures reliable protection against excessive forward or reverse voltages.

The DZ2W04700L is mainly used in voltage regulation, DC-DC converters, clamping circuits, resonance circuits, and protection circuits. As a Zener diode, it operates as a voltage regulator. It does this by allowing only a certain amount of current to flow through it when a certain specified voltage is reached. This prevents larger currents from being applied to the rest of the circuit when excessive voltage is applied.

The DZ2W04700L consists of a PN junction in which the majority carriers are holes. It functions as a reversed biased diode when the applied voltage is below its Zener breakdown voltage. But when the applied voltages exceed the Zener breakdown voltage, the PN junction undergoes a sudden transition to a forward biased diode and it will allow large currents to flow through the junction. This transition occurs abruptly and produces a voltage that is quite stable compared to the transition process before it. The voltage is determined by the materials in the junction and the doping level.

An improvised working principle of the DZ2W04700L consists of two electrodes, the anode and the cathode. When the anode is in the positive and the cathode in the negative, the current flows from the anode to the cathode, with electrons being ejected from the cathode into the anode. When the applied voltage exceeds the Zener breakdown voltage, a large number of populated trap states allow tunneling from the anode to the cathode and electrons are ejected from the cathode into the anode. This increases the current in the diode and causes a suddenly transition to the forward biased diode state, with the Zener voltage being determined by the properties of the PN junction and the doping level.

The DZ2W04700L offers high stability, and its high power rating makes it suitable for protecting more complex and sensitive circuits from transient surges. It provides reliable protection against excessive forward or reverse voltages and is widely used in voltage regulation and voltage protection circuits. It is small in size, easy to mount, and provides efficient protection for large currents.

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