B59772B0120A070

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PTC (positive temperature coefficient) resettable fuses, also known as polyfuses, are a type of filter that is used in a variety of applications. They are often used to provide overcurrent protection and safety for electronic components in electrical systems such as computers, servers, home appliances, automotive electronics, and hearing aids. The B59772B0120A070 resettable fuse is one of the most popular PTC fuses in the market today. In this article, we will discuss the application field and working principle of the PTC resettable fuse B59772B0120A070.

The B59772B0120A070 is primarily used for applications that require a high current holding capacity. This type of fuse is suitable for use in systems where the current demand varies with time. The B59772B0120A070 works as an overcurrent protection device, preventing damage to the connected equipment due to excessive current flow. It is a simple, reliable, and cost-effective solution for protecting electronics.

The B59772B0120A070 is designed to protect up to 20 A of current. This fuse has a current carrying capacity of 20A and a temperature coefficient of -3.8%. This means that the fuse will open when the temperature and current increases above the designated limits. The fuse is also designed to be self-resettable, meaning that it reset itself after the temperature and current have dropped back to normal.

The PTC resettable fuse B59772B0120A070 works on the principle of increasing resistance. When the device detects an overcurrent, it automatically increases its resistance which reduces the current flow and prevents damage to the connected equipment. This mechanism is often referred to as a “positive temperature coefficient” because when the temperature increases, the fuse’s resistance also increases. This helps protect the connected device from an overcurrent situation. Once the temperature returns to normal, the fuse will reset itself and continue to function normally.

The B59772B0120A070 PTC resettable fuse is typically used in a variety of applications including automotive, consumer electronics, medical devices, and more. In automotive applications, this fuse is often found in the emergency power circuits and batteries, audio systems, lighting, and navigation systems. In consumer electronics, the fuse is often used in LCD and plasma display panels, electronic cameras, batteries, computers, and more. In medical devices, the fuse is often used to protect systems from overcurrents and surges.

The PTC resettable fuse B59772B0120A070 is a simple, reliable, and cost-effective solution for protecting electronic devices from overcurrents and surges. Its positive temperature coefficient makes it ideal for applications where the current demand varies with time. The fuse will automatically trip and reset when the temperature and current exceed the designated limits, and it is designed to work for a long time. This makes it a great choice for use in a wide range of applications.

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