SMD1812P110TSA

PTC Resettable Fuses

PTC (Positive Temperature Coefficient) Resettable Fuses are self-resetting overcurrent protection devices designed to provide reliable protection of sensitive components from electrical overcurrent conditions. The SMD1812P110TSA is a typical example of a PTC Resettable Fuse. It is designed to be mounted directly to a PCB and has a rated power of 110 watts (at 1.0A). The SMD1812P110TSA features low internal resistance and fast response time, making it ideal for environments where tight space constraints and/or high temperature requirements are present. This product is also designed to be temperature-resistant, and can handle a wide range of temperature environments.

Application Field

The SMD1812P110TSA is designed to provide overcurrent protection for a range of electronic components and systems, including embedded processors, network routers, computers, modems, HDDs, SSDs, TV sets, cameras, industrial control systems and other digital electronic devices. It can be used in high temperature environments, such as automotive, medical, avionics and industrial control. Its fast response time and low internal resistance make it suitable for mobile devices, as it can effectively protect against transient surges and overcurrent conditions.

Working Principle

The SMD1812P110TSA works on the principle of a PTC Resettable Fuse. When an overcurrent situation is detected, the fuse will immediately react and open. This opens the circuit and interrupts the electrical current. The SMD1812P110TSA is then reset when the current is removed, and will remain in the open state until the current voltage is restored. This allows for an automatic resetting procedure, which prevents damage to the sensitive electronic components.

The SMD1812P110TSA is designed to provide both overcurrent and overvoltage protection. It is equipped with a pair of electrodes that form a circuit breaker, which opens when a pre-set voltage is exceeded. It also features a temperature characteristic which will increase the resistance when the temperature rises. This helps protect the components from the thermal runaway and overcurrent conditions.

The SMD1812P110TSA is a reliable protection device that can be used to effectively protect a range of electronic components and systems from electrical overcurrent conditions. Its fast response time, low internal resistance and wide temperature resistance capabilities make it ideal for use in high temperature environments. It is a cost-effective way to provide protection for sensitive components and systems.