1.5KE150ATR

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TVS (Transient Voltage Suppressor) diodes are one of the most commonly used components for providing protection against current and voltage related surges. They can be found in a wide range of applications, including automotive electronics, communications equipment, consumer electronics, and more. Here, we discuss the application field and working principle of 1.5KE150ATR TVS diode.

1.5KE150ATR TVS diodes are mainly used in applications needing reliable surge protection against electrostatic discharges (ESD) and EMI/RFI noise. They offer up to 150W peak pulse power dissipation, maximum clamping voltage of 18.2V, and stand-off voltage of 13.0V. These TVSs also feature low capacitance, low leakage current, and high surge capability. They come in an SMB-type package, measuring 3.2 mm x 2.6mm, and can be soldered directly onto the PCB.

The working principle of 1.5KE150ATR TVS is based around the current-limiting and clamping effects. It works by intercepting the incoming current and diverting a portion of it to another area, thus reducing the amount of current passing through the load. It then holds the voltage across the load to a certain level (known as clamping voltage). This helps limit the energy dissipated by the surge.

The TVS works through the combination of two effects- joule heating and avalanche breakdown. Joule heating occurs as the TVS absorbs energy from the surge, which heats up its semiconducting material. This causes avalanche breakdown, a phenomenon wherein electrons are accelerated to very high speeds by heat. This results in them colliding with atoms in the semiconducting material, which produces ionization and allows current to flow through the device.

In summary, 1.5KE150ATR TVS diodes are used for providing surge protection in a variety of applications. They feature peak power dissipation of 150W, clamping voltage of 18.2V, and stand-off voltage of 13.0V. They are also small and can be soldered directly onto the PCB. The TVS operates using the combination of joule heating and avalanche breakdown, which increases the flow of current through the device.

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