VK104MK151R020P050

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TVS (Transient Voltage Suppressors) or also known as Varistors, MOVs (Metal Oxide Varistors), and components found across multiple industries protecting components and circuits from damages due to transient voltages. The VK104 MK151R020 P050 is one of these TVS components. Knowing the application field and working principle of this component allows us to utilize its value more efficiently, so in this article, we will delve deeper into that information.

Application field

The VK104 MK151R020 P050 is a transient voltage suppressor (TVS) that is used for surge protection in communications circuits. It is designed to provide protection against pulse transients ranging from 8/20 µs up to 10/1000 µs, and transients peak voltages up to 500VRMS. This wide range of protection is a valuable asset to the vast array of applications that rely on communication and signaling, such as:

• Telecommunication networks
• Computer equipment
• Medical instrumentation

The VK104 MK151R020 P050 also features an ultra-low capacitance package, meaning it will not interfere with high-speed interfaces such as Ethernet, HDMI, or USB. The VK104 MK151R020 P050 is also RoHS Compliant making it suitable for any environment or application.

Working Principle

The VK104 MK151R020 P050 works by clamping transients to a safe operating voltage level. This is done by using the TVS, or Varistor, component within the device, which is basically a ceramic core surrounded by two metal plates that shifts the voltage of the circuit to the correct levels. The aluminum-oxide ceramic core is the key component to this device - when the voltage is below the rated breakdown voltage of the ceramic core, the device will not conduct, thereby protecting the circuit. When the voltage exceeds the rated breakdown voltage of the ceramic core, the core quickly dissipates the excess energy, resulting in a clamped voltage level.

The VK104 MK151R020 P050 has a 30A max peak pulse current, making it suitable for heavy duty applications with short duration transients. The device also features a low RMS leakage rating of less than 0.25mA keeping it well below the threshold at which power supplies start providing negative feedback, which is a common problem with traditional TVS devices. Additionally, this component is able to operate within a -55°C to 125°C temperature range, making it an ideal choice for high temperature scenarios and in environments where moisture or liquid is present.

Conclusion

The VK104 MK151R020 P050 is an incredibly versatile TVS component used in a variety of applications and environments to provide reliable protection against transients. Its 30A max peak pulse current, low RMS leakage rating, and high temperature range makes it a preferred choice for many designs and applications where transients are a major concern.

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