MF-SM300-2-99

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PTC resettable fuses, also known as polymeric positive temperature coefficient (PPTC) devices, are used increasingly in advanced electronic systems. They are used to protect circuits and components from overcurrent and overvoltage. The MF-SM300-2-99 PTC resettable fuse is a reliable and cost-effective protection solution for circuit designs.

Application Field of MF-SM300-2-99

This PTC resettable fuse is available in three primary configurations, named MF-SM300-2-99. It offers a protection evaluation in accordance with IEC C59, VDE0660 and UL/EN 60950 standards. The fuse is well suited for use in telecommunications, consumer electronics, industrial control and audio/visual applications. Additionally, it can be used to protect a wide range of DC loads such as LED lights, motors, electronic transformers, automotive electronics, switches and optoelectronics.

Working Principle of MF-SM300-2-99

The MF-SM300-2-99 PTC resettable fuse works on the principle of a temperature-sensitive resistor. During normal operation, the current passes through the fuse without restriction. The integrated temperature dependence of the device ensures that an overly high current passes through it, causing it to heat up and thus increase in temperature. Consequently, the resistance in the device increases greatly, limiting the current passing through it. Once the level of the current decreases, the device cools down, and the resistance in the device decreases, thus allowing the current to flow again.

The triple configurations of the MF-SM300-2-99 offer excellent current surge and voltage protection, with a wide temperature range of -40°C to +90°C. It can provide a hold current ranging from 30mA to 2A, while its power rating ranges between 75mW and 400mW. The operating voltage of the device ranges between 2 and 15V.

Advantages of MF-SM300-2-99

The MF-SM300-2-99 PTC resettable fuse provides many advantages over traditional fuses. It has a low self-heating capability, fast response time, and it does not require any additional protection circuits. It has a high current-carrying capacity and a low leakage current, which allow for higher power dissipation than traditional fuses. Additionally, the fuse can be reset multiple times, and it\'s able to withstand extended periods of overcurrent. This makes it an ideal solution for applications where the current can spike and an immediate protection solution is necessary.

The MF-SM300-2-99 PTC resettable fuse is one of the most reliable and cost-effective protection solutions available. It offers excellent current, voltage and temperature protection for a wide range of DC loads. It is easy to install and requires minimal maintenance. The device is UL listed and certified to meet IEC C59, VDE 0660, and UL/EN 60950 standards. This makes it an ideal choice for a wide range of applications.

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