TV02W191B-HF

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TVS (Transient Voltage Suppressor) diodes are an essential component in any system with an integrated circuit (IC) chip, playing a critical role in protecting it from harmful voltage transients, also known as Electrostatic Discharge (ESD). The TVS-diode TV02W191B-HF is an important part of any device that requires reliable and robust ESD protection. This device offers a high level of protection by combining both silicon and metal oxide varistors (MOV) on the same chip. This article will discuss the application field and working principles of the TV02W191B-HF.

Application Field:

The TV02W191B-HF is designed for ESD protection applications, such as providing protection for peripheral devices and critical equipment in automotive, industrial and consumer electronic designs, as well as aerospace and defense systems. It is suitable for a wide variety of high speed data lines in these applications, including but not limited to: Ethernet, USB, peripheral control lines, audio/video lines, and board to board interconnects. The TV02W191B-HF is designed to provide efficient ESD protection for a range of voltages, from 5V to 220V, as well as a 5kA surge current capability.

Working Principle:

The TV02W191B-HF is a two-element device, consisting of both a silicon (Si) diode and a metal oxide varistor (MOV). The Si diode is the primary ESD protection element, providing fast response times and protection up to 6.5kV. The MOV is the secondary element, providing a higher level of protection beyond that of the Si diode, and can provide up to 20kV ESD protection.

The Si diode turns on quickly when the input voltage exceeds a certain threshold, and transfers the transient voltage into a lower voltage, often referred to as “clamping voltage.” The MOV then acts as a surge absorber, dissipating the surge energy away from sensitive circuitry. The device then returns to its normal off-state once the input voltage level has returned to normal.

The TV02W191B-HF is a highly reliable device, offering a high level of protection with fast response times and low leakage current. It is also cost effective, ensuring a good ROI for the user. It is a reliable and versatile ESD protection solution for system designers looking to protect their circuitry from transient voltage spikes.

Conclusion:

The TV02W191B-HF is an important and versatile component for any system with an IC chip. Its two-element design offers fast response times and reliable protection up to 20kV ESD. It is suitable for a wide variety of high speed data lines, from 5V to 220V. In addition, it is cost effective and highly reliable, making it an ideal choice for system designers looking to protect their circuitry from transient voltage spikes.

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