VLP220F

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PTC Resettable Fuses are a very important element in electronics protection. They are designed to protect against harmful current and voltage surges that can occur in a wide variety of applications and conditions. The VLP220F Resettable Fuses are an advanced version of traditional PTC fuses, which are designed for applications where voltage and current spikes may happen and needs protection. They feature a wide range of temperature ratings (about -55°C~165°C range), low power consumption, a low leakage current and a high breaking capacity.

The VLP220F is easy to install and works by using a thermal switch to cut off power to circuit elements in the event of an overload or fault. It allows two different types of protection: thermal and current. Thermally, it will shut off or trip the power in the event that the temperature of the fuse exceeds a preset value. Current protection is when the fuse trips when it detects a current overload. The VLP220F can reset itself after it is tripped and the temperature and currents have returned to a safe state.

The VLP220F is suitable for use in applications where a broad temperature range is needed, including hot-swappable power supplies, portable device chargers, LED lighting, automotive electronics, industrial equipment and medical devices. It is a great choice for applications where it is necessary to protect against high over-currents and excessive heat. The VLP220F is also effective and reliable at preventing short circuits and over-current events.

In terms of its working principle, the VLP220F is a bi-metallic thermal relay. It is composed of a small piece of metal and a solenoid. When the temperature exceeds a preset threshold, the metal expands and a current runs through the solenoid. This in turn energizes the solenoid coil, causing the magnetic field to be released and separating the two electrical contacts, thus disconnecting the power supply. When the temperature or current goes back to a normal range, the PTC Resettable Fuse will reset itself and resume power.

The VLP220F is a highly reliable and robust way to protect against electrical surges and current overload. The easy installation, flexible temperature range and resetting ability make it a great choice for applications that require a reliable and durable protection solution.

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