SMD1210P075TSA

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PTC Resettable Fuses, also known as polyfuse, are frequently used in many applications including electronics over-current protection, automotive battery protection, and system reset circuits.

The SMD1210P075TSA is an example of a PTC Resettable Fuse. It is a small, cylindrical, thermally activated component designed to provide a specified level of over-current protection. This top-terminal device has a rated hold-current of 75mA and a rated trip-current of 125mA. The SMD1210P075TSA is available in a 1210 (3216 metric) surface mount package with an IPC/JEDEC J-STD-020C compliant body and is RoHS compliant as well.

One of the key features of the SMD1210P075TSA is its wide variety of application fields. It is commonly used in consumer electronics, such as tablets and mobile phones, as well as industrial, automotive and medical applications. The SMD1210P075TSA is also suitable for use in multi-Watt converters, as well as many other applications where a reliable over-current protection is needed.

The working principle of the SMD1210P075TSA is based on the fact that it contains a resistor-paste that is self-heating when exposed to an over-current. When this occurs, the resistor-paste temperature increases, causing a resistance increase. This, in turn, causes the current to no longer exceed the device’s predetermined trip current and protects the device under test from damage due to the over-current.

The ability of the SMD1210P075TSA to self-reset after the over-current protection is active is a major benefit in most applications. Once the fault subsides, the SMD1210P075TSA will reset back to its normal operational state, thus avoiding repair or replacement costs associated with traditional fuses.

In summary, the SMD1210P075TSA is a PTC Resettable Fuse designed for a wide variety of applications. Its ability to self-reset after providing protection makes it an ideal choice for many applications that require reliable, over-current protection.

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