ATV06B160JB-HF Circuit Protection

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The ATV06B160JB-HF is a critical component in the automotive and industrial industries, that is used to protect sensitive electronic circuits from electrical overstress. This TVS diode can handle peak transient surge voltages of up to 160V and has an avalanche energy rating of 140mJ at an operating temperature range of -55°C to +150°C.

A TVS diode, also known as a Transient Voltage Suppression diode, is a two terminal, high conductivity semiconductor characterized by their low forward voltage drop and high peak surge current capability. A TVS diode has two primary functions in an electronic circuit. One, it is able to provide protection from overvoltage transients and high energy surges such as electrostatic discharge (ESD) and inductive kick-back. Two, it is able to protect the circuit itself by clamping off excess voltage.

The ATV06B160JB-HF is also equipped with reverse polarity protection circuitry, so it will protect even when reverse voltages are applied to it. This diode is equipped with superior hysteresis performance, that allows it to handle surge after surge with no degradation in its ability to protect. This makes it the perfect choice for applications that are exposed to high electrical noise and/or fast transients.

The ATV06B160JB-HF application field mainly includes automotive power gear systems, hybrid/electric vehicle power supplies/inverters, industrial electronic equipment, domestic appliance control systems and communication systems. It is frequently used in charging system overvoltage protection, ESD and lightning protection, low voltage power supply circuit overcurrent protection, and surge protection in power lines.

The working principle behind the ATV06B160JB-HF TVS diode lies in its electrical property called “avalanche breakdown”. It is a high-order nonlinear effect that occurs in an intrinsic region of a semiconductor, resulting in a sudden increase in current through the diode. When the avalanche effect is triggered, the diode effectively goes into the forward bias mode and can remain that way for as long as it has enough voltage and current, allowing it to constantly clamp off any excess voltage or current that flows through the circuit.

At this point, the avalanche effect creates an even clamp voltage that undergoes a continuous avalanche multiplication process until the voltage increases so much that it results in the dielectric breakdown of the diode, which eventually leads to its complete isolation and termination of the overload current. This entire process occurs extremely quickly, which is why the ATV06B160JB-HF TVS diode is so effective in protecting sensitive electronic circuits from damage caused by excessive voltages and currents.

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