2920L700SLPR

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PTC Resettable Fuses are a type of safety fuse used widely in electrical circuits that provide overcurrent protection. It is also known as a polyfuse, thermal fuse, polyswitch, multicomponent fuse, or polymeric positive temperature coefficient (PPTC) device. The 2920L700SLPR is a part of the many PTC fuses manufactured by Littelfuse, a company specializing in electrical components.The 2920L700SLPR is a circuit protection device utilizing polymeric PTC thermistors. These thermistors feature solid-state element with resistive characteristics. In their off-state form, they appear as a low-impedance, low-resistance circuit. When an overload is applied to the circuit, the thermistor\'s resistance gradually rises to open the circuit and turns off the power supply. This process is known as resettable protection.The primary application field of the 2920L700SLPR is as a general-purpose overcurrent protection device. It is particularly well-suited to single-contact systems such as cell phones, personal digital assistants (PDAs) and battery packs. It is also suitable for applications with multiple contact systems, such as laptop batteries and DC/AC inverters.The working principle of the 2920L700SLPR is quite simple. When the device is in its off-state form, it appears as a low-impedance path that allows current to flow freely. When an overload is applied to the circuit, the thermistor\'s resistance increases dramatically and opens the path, shutting off the power supply.The self-resetting feature of the 2920L700SLPR further enhances the safety of the circuit. After the overcurrent condition has passed, the thermistor returns to its low-resistance state. The circuit then can be reactivated without disconnecting the current-carrying path. This feature helps to improve the efficiency and reliability of the system.The 2920L700SLPR is an excellent choice for a wide range of high-power applications. It is fast responding and provides excellent protection from overcurrent conditions. It is highly reliable and cost-effective and is easy to install. It also has a wide operating temperature range from -40°C to +85°C making it ideal for use in temperature-sensitive applications.In conclusion, the 2920L700SLPR is an excellent choice for a wide variety of overcurrent protection. It is a powerful and reliable device that offers self-resetting capabilities and a wide operating temperature range. With its proven safety, reliability, and cost-effectiveness, it is well suited for many applications such as battery packs, sensors, inverters, DC/AC power sources, and single-contact systems.

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