TV15C121J-HF Circuit Protection

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TV15C121J-HF is a member of the TVS (Transient Voltage Suppressor) family of diodes. TVS diodes are specialized components which are designed to protect electronic circuits from electrical overstress, which is defined by the transient voltage and known as "Electrostatic Discharge" (ESD). This family of components is used in a wide range of applications, from consumer electronics to automotive applications.

A TVS diode has a simplifified structure. It consists of a PN junction with a built-in avalanche breakdown voltage, two external terminals. When an over-voltage is applied to the external terminals, the PN junction enters the breakdown region. At this point the current flow increases exponentially and the device is able to quickly dissipate the energy before it is able to cause any damage to the electronic components. The breakdown voltage of the TVS diode is a function of the external terminals, where a higher voltage is associated with higher allowable current.

The TV15C121J-HF is a diode specifically designed to protect high-speed communication lines from damage due to electrical overstress and protect circuits from transients. It has an operating voltage in the range of 15 to 85V, breakdown voltage from 15 to 85V (depending on the applied voltage), turn-on time of 14msec, and capacitance of 17pF (typical). It has a low stand-off voltage of 15V, and the capacitance, as well as the stand-off voltage, can be adjusted by changing the applied voltage.

The TV15C121J-HF is able to absorb energy in the range from 2.5A to 1000A. It has an operating temperature range from -25C to +85C, and is able to withstand isolation voltage up to 2.5kV. The diode is designed for industrial applications and is available in TO-220, SMD-2, and SOT-223 packages in through-hole and SMT form.

In summary, the TV15C121J-HF is a TVS diode designed for use in high-speed communication lines. The device is able to provide protection against over-voltage transients by quickly dissipating energy and is suitable for a wide range of applications, from consumer electronics to automotive applications. The diode is available in various packages and is able to withstand operating temperatures up to 85C, as well as isolation voltages up to 2.5kV.

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