YQS8122

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC (positive temperature coefficient) resettable fuses are very effective in protecting against temperature-related damage to electronic circuits. They are used in a variety of applications, from consumer products to industrial and other industrial machinery. The YQS8122 PTC Resettable Fuse is one such example of this technology, providing reliable protection of temperatures in the range of 65℃ to 135℃.

The YQS8122 PTC resettable fuse has a unique construction, comprising of an electrically conductive ceramic core and outer casing made of flame-retardant PTFE (polytetrafluoroethylene) material. This construction makes the device highly efficient in protecting against extreme temperatures, as any excess heat causes the ceramic core to expand, resulting in a resistance characteristic that rises quickly to ensure the temperature stays within acceptable limits. On cooling, the ceramic core reduces in size and restores the fuse to its original low resistance state.

In operation, the YQS8122 PTC resettable fuse employs a simple yet sophisticated self-resetting mechanism and is suitable for a variety of applications. It’s particularly recommended for use in electric vehicles, solar energy systems, and other systems exposed to sudden temperature fluctuations. Its advantages include low resistance, high current density, and good temperature stability.

The YQS8122 PTC resettable fuse is a great choice of protection device for a variety of applications. Due to its superior thermal protection, it helps to avoid damage to sensitive components and keep the system in an ideal thermal state. Its flame-retardant PTFE construction ensures reliable operation in extreme heat. And, unlike other common types of protection devices, the YQS8122 will not be rendered useless after the user has a single incident of over-temperature.

The YQS8122 PTC resettable fuse works by reacting to sudden temperature changes. When power is applied to a circuit protected by the fuse, the temperature in that circuit quickly rises. As the temperature approaches the predetermined maximum, the PTC ceramic core embedded in the fuse expands, and the resistance increases. This increases the amount of current flowing through the fuse, which in turn increases the heat generated. Eventually, the temperature will exceed the predetermined limit, triggering the device, and the fuse will go into an open-circuit mode.

Once the temperature drops below the predetermined limit, the ceramic core retracts and the resistance decreases. This reduces the amount of current flowing through the fuse and lowers the heat. When the temperature remains at a safe level for a certain period of time, the fuse automatically returns to a low-resistance state and the circuit is restored.

The YQS8122 PTC resettable fuse is an effective temperature limiting device, providing reliable protection against over-temperature incidents. It provides significant advantages over traditional fuses and other protection devices, such as a low resistance that minimizes power loss, high current density, and improved temperature stability. Its flame-retardant PTFE construction ensures reliable operation in extreme heat, and its self-resetting mechanism helps to reduce downtime and minimize maintenance costs.

The specific data is subject to PDF, and the above content is for reference