Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC Resettable Fuses

B59872C0120A070 Application Field and Working Principle

PTC resettable fuses, more commonly known as polyfuses, and also known as polymeric positive temperature coefficient resettable fuses, are a self-resetting form of overcurrent protection used in electronics to prevent accidental short circuits. They offer an alternative to traditional fuses, as they don’t require user intervention in order to reset the circuit, and can be reset multiple times. This makes them more convenient than regular fuses, as they don’t need to be replaced after each incident. They are commonly used in many consumer electronics, such as laptop chargers, and in automotive applications such as engine control systems and airbags.

The B59872C0120A070 is a popular polyfuse, and it can be used in a wide range of applications. It has a nominal resistance of 1.2 ohms, and it can handle a maximum current of 5 Amps. The fuse is designed to trip and reset when it is overloaded, and it can handle short-term currents of up to 25 Amps without tripping. This makes the B59872C0120A070 ideal for use in applications that may experience short-term surges, as it will be able to reset itself quickly after any incidents.

The working principle of the B59872C0120A070 is fairly simple. The device is made up of a PTC element and a small DC, low voltage, control circuit. This control circuit monitors the current and voltage of the circuit, and when it detects an overload, it trips the PTC element. This causes the resistance of the PTC element to rapidly increase, thus preventing any further current from flowing through the circuit. The device will then automatically reset itself when the current and voltage levels have returned to normal.

In conclusion, the B59872C0120A070 is a popular PTC resettable fuse that can be used in a wide range of applications, including automotive and consumer electronics. It is designed to trip and reset when an overload is detected, and it can handle short-term currents of up to 25 Amps without tripping. The working principle of the B59872C0120A070 is fairly simple; it is made up of a PTC element and a small control circuit that monitors the current and voltage of the circuit.

The specific data is subject to PDF, and the above content is for reference