SMD185F-2

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PTC Resettable Fuses have become an essential tool for protecting electrical circuits across the board. SMD185F-2 is a special type of resettable fuse that can be applied to the most challenging application fields. Its value lies in providing ultra-fast response time and industry-leading durability without compromising its sleek and compact design. This article will give an overview of the SMD185F-2 application field and its working principle.

The SMD185F-2 is a high-performance alternative to onboard protection for a variety of application fields. It is commonly used in high-output power supplies, high-speed switching devices, and lightning surge application, such as automotive applications, Smartphone charging, IoT applications, and PoE enabled networks. It is especially well-suited for cases where system durability and high response time are critical. Because the SMD185F-2 has maximum I2t capabilities, it can protect circuits from unusually high current/temperature overloading conditions and offer robust system protection and safe operation.

The SMD185F-2 is also equipped with a variety of features that make it a reliable and robust protection solution. Its compact size makes it ideal for space-constrained designs while its low-resistance contact technology protects circuits from voltage drop and ensures reliable operation. It also features a reverse polarity protection and a low trip current setting capability, giving it greater flexibility for use in different applications.

Moreover, the SMD185F-2 also has a wide operational temperature range of -40°C to +125°C, which makes it suitable for a wide variety of applications. Lastly, it has a high surge capability and a long service life of up to 100,000 cycles.

The SMD185F-2 works on a simple yet highly effective working principle. First, a current flows through the circuit, and if the current approaches or exceeds the preset threshold reflecting the rating of the fuse, the PTC device detects it and begins raising its impedance, creating a “fuse effect”. This brings the current down to the desired level and restores the circuit to a safe operating condition.

Once it is triggered, it will reset itself automatically once the current returns to a safe level and will be ready for the next surge of current. This feature makes it an ideal solution where high surge or sustained overcurrent is a possibility.

In conclusion, the SMD185F-2 is a high-performance alternative to onboard protection for a variety of applications. Its wide operational temperature range, low-resistance contact technology, reverse polarity protection, and numerous other features make it a reliable and robust protection solution. Moreover, its simple yet highly effective working principle makes it a great choice for ensuring safe and reliable system operation.

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