20KPA172A Circuit Protection

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TVS (Transient Voltage Suppression) diodes play an important role in safeguarding the systems in a variety of fields, such as automotive, telecommunications, healthcare, environmental, and industrial. They\'re designed to protect against transient overvoltage events which can result from ESD (electrostatic discharge), inductive switching, or lightning events.

The 20KPA172A diode module is a leading-edge TVS diode solution from Unisem. It has an approved ESD protection of up to 15 kV and an operating voltage up to 82 V. The product also offers superior performance in environments with wide operating temperature ranges. It is an integrated surface-mounted diode module with a very small, durable form factor.

The 20KPA172A diode can be used in a variety of applications due to its superior ESD protection. It is primarily applicable to automotive applications, consumer electronics, industrial, and medical products. It is designed for use in power converters, high-speed data links, and motor control applications. It protects against reverse-bias electrostatic discharge (ESD) transients and inductive switching in high-voltage, high-current applications.

The working principle of the 20KPA172A diode module is based on the principle of negative charge depletion. It uses a unique reverse-bias avalanche effect which is triggered by an electrostatic or inductive effect and which creates a negative charge depletion layer. This is effectively a depletion layer which is created when an electrostatic or inductive field occurs in the diode\'s depletion region. This causes electrons to be repelled from the p-type region into the negative space charge region, thereby creating a barrier to the reverse current flow. This reduces the dielectric breakdown of the diode and its ability to absorb transient overvoltages.

The 20KPA172A TVS diode module has a peak surge current rating of up to 24 A and a clamping voltage of 28 V. It is rated for a 10 ns pulse response time with a reverse mount capability. It is designed to protect against transient overvoltage events of up to 400 W. It also features a low clamping capacitance of only 4 pF at 10V.

In summary, the 20KPA172A diode module from Unisem is an innovative transient voltage suppression (TVS) diode solution for a wide range of applications. Its superior ESD protection and reverse-bias avalanche effect provides superior performance and reliability in high-voltage, high-current electronic components. Its low capacitance and peak surge current rating, as well as its 10 ns response time, makes it an ideal solution for protecting against transient overvoltage events.

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