Z4KE170HE3/54

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Z4KE170HE3/54 is a single Zener diode that has a wide range of application fields, including high-frequency signal processing and AC/DC free-wheeling diode protection, voltage regulation, signal turn-off and others. In this document, the application fields and working principle of the Z4KE170HE3/54 will be discussed.

Application fields

The Z4KE170HE3/54 is a highly-reliable, low-power Zener diode that is capable of withstanding reverse voltages up to 170 V. It is suitable for applications which require high-frequency signal processing, and is highly suited to AC/DC free-wheeling diode protection. It is ideal in voltage regulation, signal switching off and on, protection of connected loads, switching power supplies, and more.

When used in high-frequency signal processing applications, the Z4KE170HE3/54\'s excellent voltage regulation capabilities allow it to provide low-noise circuit isolation, enabling higher-fidelity sound. It can also be used in power-line interference (PLI) filters, which protect equipment from surges in power caused by lightning strikes or other sources of power spikes.

The Z4KE170HE3/54 can also be used in AC/DC free-wheeling diode protection, in which it is used to protect the connected loads from voltage spikes, overcurrents, short-circuits and related events. Additionally, it can be used for voltage regulation and for signal switching, providing fast and easily controlled switching times, as well as excellent signal integrity.

Working Principle

The Z4KE170HE3/54 Zener diode operates as a low-noise, reverse-biased semiconductor device. In this mode, the electrons and hole recombine within the junction and create a depletion region, which effectively prevents current from flowing in the reverse direction. This process is known as Zener breakdown or avalanche breakdown. The reverse bias voltage is limited by the voltage at which breakdown occurs.

When a reverse-biased voltage is applied to the Z4KE170HE3/54, the depletion region expands, allowing current to flow through the diode. The voltage remains approximately constant until the current reaches a certain point (known as the Zener voltage), after which the voltage starts to increase. This allows the Z4KE170HE3/54 to be used as a voltage regulator, as it will maintain voltage within a certain range, regardless of the load.

In addition to its voltage limiting applications, the Z4KE170HE3/54 can also be used as a current protection device. In this mode, the Zener diode can be used to protect against overcurrents and short circuits. The current is limited to a specified value and the voltage across the diode remains constant, which prevents further damage to the connected components.

The Z4KE170HE3/54 is a highly-reliable single Zener diode that is capable of withstanding reverse voltages up to 170 V and is suitable for high-frequency signal processing and AC/DC free-wheeling diode protection. The Zener diode\'s excellent voltage regulation capabilities, along with its ability to protect against overcurrents and short circuits, make it a versatile and reliable component for a wide range of applications.

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