5KP30C-B Circuit Protection

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TVS diodes consist of rectifier diodes connected in a special three-terminal construction. They are used to protect vulnerable semiconductor devices against voltage or current overload. TVS diodes provide protection against electrostatic discharge (ESD) and continuous over-voltage.

The 5KP30C-B is a unidirectional, Surface Mount TVS diode from Taiwan Semicondutor. It is a 30 Volt, 5.0 Watt bidirectional transient voltage protector that is ideally suited for use in high speed, low capacitance, low power applications such as cellular phones, laptops, and other sensitive circuits.

The 5KP30C-B has a working voltage of 30V, a breakdown voltage (BV) of 37.5V, and a peak current of 4.5A. It is available in a 0402 (1.0mm×0.5mm) package with a Do-214AC outline and is RoHS compliant. Its dissipation power is 5 Watts under typical conditions. 5KP30C-B is designed for five different protection categories, IEC61000-4-2 (ESD) up to 25KV, IEC61000-4-4 (EFT) up to 40A, IEC61000-4-5 (Lightning) up to 8/20µs, 15KV/2KA or 12/1000µs, and IEC61000-4-5 (surge) up to 20A.

The 5KP30C-B is a unidirectional TVS diode, which means it can only pass current in one direction. It is designed to have a fast reaction time, a low dynamic capacitance, and low junction capacitance. It has a low on-state resistance, which ensures that it can handle high amounts of surge current without significant voltage drops.

The working principle of the 5KP30C-B is based on its three-terminal construction. It consists of two anodes, one anode connected to the positive line and one connected to the ground line, and a cathode connected to the negative line. When a voltage exceeds the breakdown voltage, current begins to flow between the anodes and the cathode. This causes a change in the breakdown voltage, which protects against high voltage surges.

The 5KP30C-B is widely used in consumer electronics, automotive, industrial, and telecom applications, such as cellular phones, telecommunication systems, personal computers, automotive electronics, power supplies, and much more. Its features make it an ideal choice for protecting sensitive circuits from ESD, EFT, and overvoltage surges.

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