CD214C-T150ALF

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TVS (transient voltage suppressors) diodes are devices specifically designed to protect a variety of electronic circuits from overvoltage transients. CD214C-T150ALF is a kind of TVS diode for overvoltage protection. It is a two-terminal diode with a low capacitance of 12pF that provides clamping action over a wide range of operating voltages.

The CD214C-T150ALF’s application field includes telecommunications systems such as modems and routers, as well as consumer electronics devices such as hard disks, computer systems, and monitors. In these applications, CD214C-T150ALF can clamp transients up to 150V and also dissipate energy up to 1.5 watts.

Working Principle

At normal operating voltages, CD214C-T150ALF behaves like an open circuit. When overvoltage transients occur, the device clamps tight voltage differential between its two terminals. During the clamping process, the CD214C-T150ALF becomes a low resistance shunt across the power source, limiting the amplitude of the transient and diverting excess current away from the protected circuit. This allows the device to protect sensitive components from damage due to sudden high voltage spikes.

CD214C-T150ALF contains a pair of Zener diodes connected in parallel that are designed to clamp the voltage differential between the device’s two terminals at a preset level. When the voltage rises above this level, the excess energy is trapped and dissipated by the device. The resulting heating effect causes the device to become an electrically stable, resistive element and limits the voltage to an acceptable level.

CD214C-T150ALF also contains several passive elements such as a surge limiting resistor and a discharge resistor. These components form a voltage protection circuit which helps stabilizes the device’s clamping voltage during transient events. This reduces the chance of permanent damage to the protected system caused by excessive voltage spikes.

In conclusion, CD214C-T150ALF is a two-terminal device with a low capacitance that provides over voltage protection in a variety of applications. Its working principle involves clamping the voltage differential between its two terminals at a preset level, while also providing protection against transient events through the use of a voltage protection circuit. The effectiveness of this device makes it an ideal choice for a variety of applications where protection from overvoltage transients is necessary.

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