1.5KE220A-G

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TVS - Diodes are designed to provide reliable protection against threats and EOS/ESD events. Specifically, they protect against over-voltage and over-current transients such as those generated by external sources, lightning, inductive load switching, and electrostatic discharge. One type of TVS - Diode is 1.5KE220A-G, which is used in a variety of applications and is optimized for common threats. Here, we discuss its application field and working principles.

Application Field of 1.5KE220A-G

The 1.5KE220A-G is a unidirectional TVS - Diode, meaning it is designed to protect from incoming high-energy surges or transients. It is most commonly used in high-speed communication ports such as USB3.1, 10/100 Ethernet, and audio/video interfaces. It is also used in other fields such as protection of power supply lines in portable device protection, switch mode power supplies, and DC-DC converters. The 1.5KE220A-G can also be used in automotive applications such as protecting circuits from the EMC.

Working Principle

The 1.5KE220A-G is an effective and reliable overvoltage protection device, thanks to its integral working principle. It is designed to actively clamp and disperse incoming surge current, diverting it away from protected components and devices. This is done using a semiconductor junction which utilizes the avalanche breakdown voltage of the diode itself. When the applied voltage exceeds the breakdown voltage, the diode shorts to force current through its reverse-biased junction and effectively divert current away from vulnerable components.

The in-built trigger voltage of the diode is directly related to the applied voltage, creating a sequential clamped pathway. This stops the transients from affecting remaining components in the electronic circuit, as it takes the brunt of the surge itself. The components are also effectively protected from any EOS/ESD events, as the 1.5KE220A-G has a low input capacitance, which prevents any changes in the electrical circuit due to noise.

Conclusion

The 1.5KE220A-G TVS - Diode is a reliable device with excellent protection capabilities. It is ideal for use in a wide variety of applications and has the added benefit of being optimized for common threats. Its integral working principle allows it to actively clamp and divert incoming surge current, protecting vulnerable components and devices from EOS/ESD events. Thanks to its low input capacitance, the 1.5KE220A-G is a go-to solution for reliable overvoltage protection.

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