TBU-PL085-200-WH Circuit Protection

A surge suppression IC is an integrated circuit (IC) that can provide instantaneous protection from current surge impedance or voltage surge impedance. It won’t be visible, but is rather embedded in the IC itself, possibly embedded in gate oxide. An example of such an IC is TBU-PL085-200-WH.

The TBU-PL085-200-WH surge suppression IC is a three-terminal device that is designed to protect low voltage industry-standard logic families from overvoltage transients. It consists of a P-channel MOSFET, which is connected between the drain and source terminals, and a protection diode which is connected between the drain and ground. The Diode is configured as a reverse parallel diode to the MOSFET, meaning that when the MOSFET is in the off-state, the diode is in the forward state and will still allow current to flow through the device. When a surge occurs, the diode will kick on in the reverse direction and provide a means for the surge current to be diverted away from the protected circuit.

The TBU-PL085-200-WH surge suppression IC works by limiting the voltage across the gate and drain of the MOSFET. When a voltage momentary occurs, the diode will clamp the voltage at the gate and drain, preventing the MOSFET from overvoltage. When the momentary voltage event is over, the diode will turn off and the MOSFET will regain its normal level of conduction. The TBU-PL085-200-WH provides overvoltage protection from surges of up to 5KV, withstanding continuous voltages up to 18V. It operates in a wide temperature range of -40°C to +150°C.

The TBU-PL085-200-WH is widely used in low voltage industry-standard logic families, such as in consumer electronics, automotive systems, communication systems and computers. It is also used in medical devices, surveillance systems and security systems. In these applications, the TBU-PL085-200-WH provides protection from overvoltage transients, surges, and momentary voltage events. It can also provide noise filtering, and can be used in combination with other protection devices to provide a more complete protection system from overvoltage.

The TBU-PL085-200-WH is a versatile surge suppression IC, providing a range of features for industry-standard logic families. It provides overvoltage protection from 5KV, withstanding continuous voltages up to 18V. It operates in a wide temperature range of -40°C to +150°C. Additionally, it provides noise filtering, and can be combined with other protection devices to provide a more complete protection system. The TBU-PL085-200-WH is a valuable tool in the protection of low voltage systems from overvoltage.