IP4790CZ38/1,118 Circuit Protection

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TVS - diodes are often used to protect circuits or components from transient voltages and currents. They are mostly used in power supplies, automotive applications, consumer electronics, telecommunications, medical electronics, and military systems. The IP4790CZ38/1.118 is one such diode. In this article, we will discuss the application field and working principle of this device.

The IP4790CZ38/1.118 is a TVS diode with a capacitance of 8 pF and an insulation resistance of 10 GΩ. It has a working voltage of 18V and an peak pulse power dissipation of 600W. This diode is designed to protect against transient overvoltages in low power applications, such as automotive electronics, consumer electronics, telecommunications, medical electronics, and military systems. Its rated working voltage of 18V prevents electric field stress on components, and its high peak pulse power dissipation ensures effective protection for power switching circuits.

The primary mechanism for the working of the IP4790CZ38/1.118 is the avalanche breakdown effect. As soon as a transient voltage is applied, the depletion region of the diode can be reversed and electron-hole pairs are created due to impact ionization. This creates an avalanche that snaps back to its original state when the transient voltage is removed. This process reduces peak transient pulses, clamping down the transient. This mechanism also acts to protect any components from electric field stresses.

The IP4790CZ38/1.118 is specifically designed to protect against transient overvoltages from 5 to 8 kilovolts. This diode is an ideal choice for inrush protection, ESD protection, and reverse protection from EM fields. It is also suitable for power supplies, automotive applications, consumer electronics, telecommunications, medical electronics, and military systems.

To ensure effective transient protection, the IP4790CZ38/1.118 is manufactured with a low capacitance of 8 pF and a high insulation resistance of 10 GΩ. This helps to ensure fast clamping of the transient pulses and protects the power supply and other components from electric field stress. The high peak pulse power dissipation of 600W also helps to ensure effective protection of the circuit.

In conclusion, the IP4790CZ38/1.118 is a TVS diode that can be used to protect circuits or components from transient voltages and currents. It has a rated working voltage of 18V and a high peak pulse power dissipation of 600W. Its low capacitance and high insulation resistance ensure fast clamping of transient pulses and effective protection of other components from electric field stresses. This device is ideal for protecting circuits from transient overvoltages and is suitable for applications in automotive electronics, consumer electronics, telecommunications, medical electronics, and military systems.

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