SMD1812P020TFA

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PTC Resettable Fuses are important components used in a variety of electrical circuits and power supplies. The SMD1812P020TFA is a type of PTC Resettable Fuse offering a wide range of application fields and working principles.

The major application fields for SMD1812P020TFA include monitor power boards, audio systems, electric cars, electronic equipment, and medical devices. This particular PTC Resettable Fuse is specially designed for circuit protection and isolation in these application fields. It provides superior thermal stability, reliable performance and long service life.

The working principle of SMD1812P020TFA follows the basic features of all PTC Resettable Fuses. It uses a Proportional Thermistors (PT) and a Relay (R) as an auto-driven switch. The thermistor monitors the circuit current, and increases its resistance when the current exceeds the predetermined value. The relay then opens to isolate the load from the power source and protect the circuit from over-current situation. When the current returns to normal, the relay automatically resets.

SMD1812P020TFA is equipped with fast response time, excellent repeatability and high dependability. It has a wide range of operating temperature from –40 degrees Celsius to+125 degrees Celsius, providing additional protection from extreme temperature exposure.

Some of the unique features of SMD1812P020TFA are its low impedance, high insulation strength, and its ability to withstand high power density. Its snap-action contacts also provide reliable protection and fast response time. Overall, SMD1812P020TFA has excellent performance and is highly reliable in achieving circuit protection and isolation in different application fields.

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