15KP120C

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The 15KP120C TVS – Diode is a bidirectional, high-speed, Transient Voltage Suppression diode. It’s often used to protect both low-voltage AC systems and high-voltage DC systems and components from transient voltage surges. The device is a package of two separate back-to-back Zener diodes, which act as a single unit with two anodes and two cathodes. The two diodes each have a breakdown voltage rating, allowing the 15KP120C to offer line-to-ground protection to multiple levels as set by the user.

The 15KP120C has a typical capacitance of 200pF across its two terminals and is able to dissipate up to 80 watts of typical power. The device is also very fast, with a typical response time of 1 nanosecond. These properties make it ideal for protecting low-power, high-speed digital devices from damage caused by electrical transients.

Application-wise, the 15KP120C is typically used for protecting personal computers, televisions, air-conditioners, refrigerators, lighting systems, and other household and commercial appliances that are affected by transient voltage. It also sees use in automotive systems and industrial applications where protection from transient voltage is necessary.

The 15KP120C’s working principle is simple. It contains two back-to-back Zener diodes, each with their own breakdown voltage rating. When either diode’s breakdown voltage is exceeded, the diode will begin conducting current, thereby suppressing the rise of transient voltage. This mode of operation effectively isolates the protected device from transient voltage.

The 15KP120C is a versatile device that offers protection from transient voltage in both AC and DC applications. Its low capacitance and fast response time make it suitable for protecting low-power, high-speed digital devices, and its high power dissipation makes it suitable for protecting high-powered electronic components from sudden voltage spikes.

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