1.5KE82A-B

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TVS-Diodes are a class of semiconductor device widely used in the protection of signal wires, systems, and circuits from damage caused by overvoltage transients. 1.5KE82A-B is a common TVS-Diodes used to protect electronic equipment from surge transients in a range of applications.

The 1.5KE82A-B consists of state-of-the-art Active Protection Technology (APT) electro-analog protection circuitry that can distinguish a transient surge from normal system operation. It has fast response times, low dynamic resistance and low clamping voltages. It provides an effective solution to overvoltage transient protection in a very small package.

1.5KE82A-B Application Field

The 1.5KE82A-B is suitable for many applications, including data, signal, power, automotive, telecoms, consumer electronics and industrial equipment, where a surge of current must be quickly controlled and dissipated away. It is ideal for overvoltage protection of sensitive electronics and components due to their ability to rapidly respond to high-energy transients.

In telecommunication systems, the use of 1.5KE82A-B protects against incoming surge voltages that could otherwise damage delicate components. When installed in electrical appliances and power electronics, it protects against transient voltages hidden within the power supply system that can cause nuisance tripping and nuisance failure.

In automotive electronic systems, the use of 1.5KE82A-B can protect against spark transients and the effects of EMI, while in industrial equipment they provide protection from static electricity and overvoltages resulting from load switching events.

1.5KE82A-B Working Principle

1.5KE82A-B TVS-Diodes have two key components: the surge dissipater and the active protection circuitry. The primary function of the surge dissipator is to divert or absorb a high-energy transient surge. It typically utilizes a rugged diode configuration, such as a Zener diode or a combination of Zener and avalanche diodes, to convert the surge current into a voltage drop.

Once the overvoltage transient has been absorbed, the active protection circuitry takes over and starts seeking for any remaining transients until they have all been dealt with. It typically consists of a current source, or shunt, connected in series with a field-effect transistor switch or two. This circuit is designed to deliver high pulse current into the object under protection (OVP) while limiting the amount of current delivered. Therefore, it ensures that surges and high-energy transients are diverted, contained and dissipated away from sensitive components before it can cause any damage.

In summary, the 1.5KE82A-B TVS-Diodes are a highly useful and effective solution to overvoltage transient protection. It provides low dynamic resistance, fast response times, and low clamping voltages, and is suitable for many different applications. It is also very reliable and easy to use.

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