SDF DF091S

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Thermal Cutoffs, also known as thermal fuses, are devices that work as a safeguard against mechanical and electrical overload of a power button or circuit. The main purpose of these thermal cutoffs is to protect the user from potential hazards that could be caused by excessive current or temperature. The SDF DF091S is a thermal cutoff device that is designed for use in the automotive, home, industrial, and medical industries.

The SDF DF091S thermal cutoff is composed of a metal-ceramic substrate, a thermal detection element, a contactor film, and a snap-action thermostat. The metal-ceramic substrate is made from a combination of metal and ceramic, and has a wide application range due to its relatively low temperature conductivity. The thermal detection element has a certain temperature setpoint and, when this temperature is exceeded, it will trigger the snap-action thermostat.

The contactor film acts as a shield between the metal-ceramic substrate and the snap-action thermostat. As the current flows through the contactor film, any excessive current or temperature will be quickly released as heat. The contactor film is designed to withstand high temperatures and voltages, and also helps to prevent electrical arcing. Finally, the snap-action thermostat is intended to rapidly actuate the thermal cutoff fuse when the pre-set temperature is exceeded.

The SDF DF091S offers several advantages over other thermal cutoffs, including a wide operating temperature range between -55°C and + 125°C and a high maximum voltage rating of 48V. Additionally, the device is designed to withstand shock and vibration, making it well-suited for use in automotive applications. The device offers three main functions that include overcurrent protection, thermal overload protection, and short-circuit protection.

The SDF DF091S is a reliable and cost-effective thermal cutoff that is suitable for use in a wide variety of applications. It is capable of quickly responding to temperature changes and is highly reliable in terms of safety and performance. The device can be applied to any type of circuits, including those used in automobiles, domestic appliances, industrial machinery, and medical devices. Its wide range of applications allows it to be used in a variety of applications, such as wireless charging pads, air conditioners, power supplies, and computers.

The working principle of the SDF DF091S thermal cutoff is simple and straightforward. The device works by rapidly cutting off the electrical current when the set temperature is exceeded. This rapid action helps to prevent potential hazards from arising due to excessive current or temperature, thus protecting the user from potential risks. Additionally, the device is designed to withstand high temperatures and voltages, providing an accurate and reliable thermal cutoff solution.

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