B72205S0250K211

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TVS (Transient Voltage Suppression) devices help protect electrical systems from over-voltage transients. The B72205S0250K211 is an example of a TVS component. This application note will outline the field of application and working principle of the B72205S0250K211.

The B72205S0250K211 is a TVS diode designed for use in transient voltage suppression in electrical circuits. It is designed to help protect sensitive equipment from damaging voltage spikes or transients. It consists of two back-to-back zinc oxide nonlinear junction capacitors, which act as a rectifier in conjunction with a resistor, an internal Zener diode, and a varistor. The device has a breakdown voltage of 250V and a maximum clamping voltage (V CDM ) of 399V.

The B72205S0250K211 is designed for use in general-purpose applications such as computer and telecom networks, consumer electronics, and automotive systems. It is designed for use in applications that require protection for high-speed data interfaces such as USB or HDMI. Additionally, it is designed for use in applications requiring low leakage current (<0.10 µA) and minimal space.

The working principle of the B72205S0250K211 is based on the principle of nonlinear junction capacitance. When the device is subjected to a high-voltage surge, the back-to-back zinc oxide nonlinear junction capacitors form a rectifier and the resistor forms a voltage attenuator. This allows the device to absorb the energy of the transient and quickly dissipate it as heat. The internal Zener diode helps protect against over-voltage conditions and the varistor helps reduce the voltage. The device also includes an internal temperature sensor and a thermal protection circuit which ensures the device does not exceed its maximum operating temperature.

In conclusion, the B72205S0250K211 is a TVS diode designed for use in transient voltage suppression in electrical circuits. It is designed for use in general-purpose applications such as computer and telecom networks, consumer electronics, and automotive systems. The working principle of the B72205S0250K211 is based on the principle of nonlinear junction capacitance and the device is designed to help protect sensitive equipment from damaging voltage spikes or transients.

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