SMD1812P260TFA

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 are devices commonly used for safety protection against electrical overloads and short-circuits. They are widely used in various electronic applications, allowing for continuous current flow up to a specified trip limit before automatically breaking the circuit. The SMD1812P260TFA is a DFN1812 package encasing a polymeric Positive Temperature Coefficient (PTC) fuse with an 8A rated current and 260V voltage rating. It is used in applications such as overcurrent protection, battery protection, cell phone chargers, power supplies, and LED lighting.

The working principle of the SMD1812P260TFA PTC Resettable Fuses lies in the special design of the polymeric PTC element, which is made of a temperature sensitive material. When subjected to an electrical current, the material heats up. If the current exceeds the normal operational rating, the heat will cause resistance to increase, resulting in a sudden L-like surge, breaking the circuit and thus protecting the device from damage.

When the current flow is within normal operation range, the polymeric PTC element remains in low resistance state. Upon detection of an over-current and thermal runaway, the device will trip and immediately cut off the current, thus protecting the device from short-circuits that could be caused by overload currents. However, the device will also reset itself once the current decreases and the temperature falls back to normal range.

Thus, the SMD1812P260TFA PTC Resettable Fuses are ideal for high-end applications that require a quick reaction time and high holding power. The device comes with a wide operating temperature range between -40C and 125C, and an impressive capability of reducing the time to trip from 2 seconds to 0.5 seconds. It also features a resistance of 200mΩ at room temperature and a maximum voltage drop of 0.8V, which makes it suitable for most modern electronic applications.

In general, the SMD1812P260TFA PTC Resettable Fuses are highly reliable, cost-effective solutions for overcurrent and short-circuit protection, featuring superior resistance to temperature change, low resistance, quick-trip time, and auto-reset capability. It is an ideal choice for many electronic applications, including overcurrent protection, battery protection, cell phone chargers, power supplies, and LED lighting.

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