V18ZA05P Circuit Protection

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TVS (Transient Voltage Suppressor) is a component used for providing protection against overvoltage surges and electrical transients. Nowadays it is widely used in many various systems and devices from computers, telecommunication and servers to consumer electronic products and automotive applications. Varistors, MOVs (Metal Oxide Varistor) are the two forms of TVS.

V18ZA05P is a SURFACE MOUNT GLASS PASSIVATED THERMAL VOLTAGE SUPPRESSOR used in AC, DC and transient applications. The device has an operating Voltage range up to 18Volts and a peak pulse power rating of 1500 Watts (10×1000µS waveform). It also offers superior clamping capability and a fast response time.

The V18ZA05P is designed for protection from voltage transients such as lightning, inductive switching, and electrostatic discharge (ESD) as well as for over-voltage protection. The devices feature an internal structure consisting of four layers of silicon nitride which absorbs transient energy and limits the peak voltage between anode and cathode to a safe value. The five-pin device provides a low profile, compact solution with excellent transient response.

The working principle of V18ZA05P is simple but robust. When the input voltage rises above the rated clamping voltage of the device, the internal diode starts conducting and the current flow through the device will cause a voltage drop across the device, limiting the peak voltage between cathode and anode to a safe value. When the input voltage falls, the device gets back into its non-conducting state, allowing the current to flow again.

V18ZA05P is widely used in automotive applications, such as power supply systems, DC electronic control systems, and communication systems etc. It is also used in aircraft applications, where transient protection and overvoltage protection are of great importance. In addition, V18ZA05P applications also include computers, telecommunication systems and servers. The device can be used to protect sensitive electronics from unexpected currents, eliminating the risk of damaged components.

In summary, V18ZA05P is a varistor device with excellent transient response and superior clamping capability. It is used in various automotive, aircraft and electronic applications that require strong protection from surges and transients. The device is designed with a four layer structure, providing low profile and low capacitance. The working principle of V18ZA05P is simple but effective, allowing a fast response time and protection from various overvoltage and transient events.

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