SP1001-05JTG Circuit Protection

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TVS - Diodes

A TVS diode, also known as a transient voltage suppressor (TVS), is an electronic component constructedfrom semiconductor material that is used to protect electronic circuits against overvoltage conditions,such as electrostatic discharge from a voltage spike, or contact with high voltages. The SP1001-05JTG is aTVS diode designed to address these issues.

Application Field

The SP1001-05JTG is designed to protect USB power lines from ESD effects and other transient voltagespikes. It is capable of clamping spikes up to 60 V for one-time events such as ESD or contact with highvoltages. The low clamping voltage, minimal leakage current, and fast response time of the device make itideal for protecting equipment such as cell phones, tablets, and other USB-powered devices.

Working Principle

The SP1001-05JTG is a capacitance-strain diode which functions by absorbing the energy of theovervoltage spike and then dissipating it as harmless heat. The device works on the principle of junctioncapacitance in series with an avalanche region. The breakdown voltage of a junction capacitance ishigher than the normal conductor, meaning it will only conduct once the voltage across it reaches acertain threshold. This threshold is determined by the design of the device and can range from a fewvolts to several hundred volts.

When an overvoltage spike occurs, the capacitance-strain diode absorbs the energy of the spike. Thisenergy is distributed across the junction capacitance and the avalanche region, causing the avalancheregion to become forward biased and conduct current. This current is then diverted away from theprotected circuits, thus eliminating the effect of the overvoltage spike.

Conclusion

The SP1001-05JTG is a capacitance-strain diode designed to protect USB power lines from ESD effectsand other transient voltage spikes. It is capable of clamping spikes up to 60 V for one-time events. Thelow breakdown voltage, minimal leakage current, and fast response time of the device make it an idealsolution for protecting equipment such as cell phones, tablets, and other USB-powered devices.

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