B72650M0111K072 Circuit Protection

TVS (transient voltage suppressor) diodes are specialized diodes that are designed to protect sensitive electronics from transient voltage spikes. The B72650M0111K072 is a radial leaded chip varistor with a maximum continuous operating voltage of 400 VAC and a maximum peak pulsed voltage of 600 VAC. The device is designed to provide surge current protection of ESD/EFT transient impulses in the 400-600 V range.

A varistor, also known as a voltage-dependent resistor (VDR), is a passive electronic component with resistance that varies with applied voltage. Varistors are typically used to protect electronic circuits from excessive voltage in the form of lightning or electrostatic discharge (ESD).

The B72650M0111K072 offers excellent ESD rating of ESD class 4 (20 kV HBM). It has a low capacitance value of less than 1.7 pF and a fast response time of less than 1 ns. The device features an operating temperature range between -40°C and 125°C. Apart from that, it has a non-linear current carrying capacity of 125 Amps.

The B72650M0111K072 works by diverting large, transient voltages to ground. In applications such as telecom, consumer electronics, automotive, and industrial power supplies; surges can occur due to contact from lightning, static electricity, and other sources. These surges can damage sensitive electronic components in the circuit. The B72650M0111K072 varistor can absorb these surges and safely dissipate the energy by shunting it to ground.

The device has a clamping voltage rating of between 125 and 600 VAC. When a surge or transient voltage rises above the threshold voltage, the device begins to conduct current, which then dissipates the excess energy. This is known as “voltage clamping” or “clamping”. This protects the vulnerable components in the circuit from the transient voltages.

The B72650M0111K072 varistor can also be used in pulse applications. In this case, the device is used to limit the peak voltage of pulsed signals. This helps protect other sensitive components in the circuit, such as microcontrollers, FPGAs, and other similar devices.

The B72650M0111K072 is ideal for use in telecom applications, consumer electronics, communication systems, and other applications where protection from transients is required. The device is an excellent solution for protection from ESD/EFT transients, making it an ideal choice for use in sensitive electronic circuits.