MINISMDC150F/16-2 Circuit Protection

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PTC Resettable Fuses

MINISMDC150F/16-2 is a part of the resettable fuse family known as PTC resettable fuse. This type of fuse incorporates a positive temperature coefficient of resistance (PTC) into its design for over-current protection. The main role of a PTC resettable fuse is to protect consumers from high current surges that usually occur when a short circuit or other abnormal event occurs.

Application Field

The MINISMDC150F/16-2 PTC resettable fuse can be applied in a variety of applications such as consumer electronics, power supplies, transformer systems, lighting equipment, and medical devices. It can also be used as an over-current protection device for smartphones, tablets, and other portable devices.

Working Principle

The MINISMDC150F/16-2 PTC resettable fuse functions to protect electronic components by resetting itself when over-current is detected. The self-resetting feature of the fuse is made possible by using a PTC thermistor as the core component. When an over-current is detected, the fuse\'s PTC thermistor rapidly increases its resistance to limit the current. This causes the temperature inside the fuse to rise, which triggers an internal thermal cut-off mechanism that stops the flow of current.

Once the temperature inside the fuse has reached a set threshold, a timer is triggered which causes the current flow to be cut-off for a predetermined period of time. This ensures that the components connected to the fuse are protected from damage due to a momentary surge in current. Once the timer has expired, the fuse will reset itself and continues to provide over-current protection to the connected components.

The MINISMDC150F/16-2 PTC resettable fuse is a robust and reliable device that provides over-current protection to sensitive electronic components without requiring manual resetting. This makes the device ideal for applications where the user does not have easy access to the fuse.

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