P4SMA170C

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Transient voltage suppressor (TVS) diodes are devices designed to protect electrical circuits and components against lightning, electrostatic discharge, and over-voltage transients. The P4SMA170C is a low capacitance, unidirectional, voltage-clamping TVS diode that offers high surge current capability for consumer products, portable equipment, and distributed power systems. It is an ideal device for protecting I/O ports in data communication and computer systems.

The P4SMA170C features a low operational capacitance of 0.45 pF and a typical clamping voltage of 170 V. It can absorb 6 A of surge current 9″ waves or 2000 A of surge current for 8/20 µs pulse. The P4SMA170C offers a peak pulse power (PPP) of 600 watts.

The working principle of the P4SMA170C is that when the input voltage from the lightning surge, electrostatic discharge, or overvoltage transient exceeds the limiting or clamping voltage, it passes through the device and is clamped by the internal P-N junction. When this occurs, the P4SMA170C instantly conduct current and absorbs it, providing protection to the connected components. The device can then safely discharge the stored energy by clamping or dissipating it until the transient is over.

The P4SMA170C is a Uni-directional device, meaning it can only handle transients in a single direction of flow. This limitation requires two individual devices in order to protect both directions. The P4SMA170C is ideal for applications such as telecom equipment, enterprise networks, consumer electronics, computers, automotive electronics, and portable devices.

The P4SMA170C is a popular choice for applications that require protection from high-voltage transients. This device can provide superior protection against lightning, electrostatic discharge, and over-voltage transients. It features a low operational capacitance, high surge current capability, and a peak pulse power rating of 600 watts. The P4SMA170C can also be used in various applications such as telecom equipment, enterprise networks, consumer electronics, computers, automotive electronics, and portable devices.

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