B59873C0120A070

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PTC resettable fuses, or Polymer Positive Temperature Coefficient Devices (PPTCs), are resettable overcurrent-protection devices that respond to the presence of an overcurrent condition by transitioning from a low resistance state to a high resistance state. In this state, the PPTC can virtually disconnect the circuit, slowing or stopping the flow of current. After the source of the overcurrent is removed, the PPTC can reset itself and the circuit’s operation can resume.

B59873C0120A070 is one of the PTC Resettable Fuses available in the market. It is an integrated circuit protection device that offers reliable protection against current overloads and short circuits. It is designed for a wide range of applications including consumer electronics, automotive, computing, industrial, and medical equipment. This device is ruggedly designed with an operating temperature range of -40°C to +85°C, and has an automatic reset on over current and short circuit conditions.

The PTC Resettable Fuse works on the principle of Polymer Positive Temperature Coefficient (PPTC). The PPTC has a thermally-activated element which is controlled by the current passing through it. When current exceeds the rated value, the element heats up, increasing its resistance and limiting the current. This triggers the circuit to stop working, until the overcurrent condition has been removed, at which time the device automatically resets.

The B59873C0120A070 PTC Resettable Fuse is found in applications where electrical safety is of utmost importance. It can be used as an overcurrent protection device for motors, solenoids, lamps, and medical equipment. It can also be employed in intelligent sensors, as well as in communication modules and high power appliances such as microwave ovens. It is also used in automotive applications such as power steering and lighting systems.

The device is designed with three connections- an input terminal for the incoming power source, an output terminal to provide the regulated power output, and a sense terminal that is used to detect the overcurrent condition. It has a wide operating voltage range of 4.5V to 50V, and a hold current of 120A. The device can also be adjusted with a temperature coefficient within a range of 3.3 to 10.3 ohms.

In summary, the B59873C0120A070 PTC Resettable Fuse is a reliable, rugged, and versatile overcurrent protection device that is suitable for a wide variety of applications. It works on the principle of Polymer Positive Temperature Coefficient (PPTC), and when triggered, it can virtually disconnect the circuit, protecting it from over current and short circuit damage. After the source of the overcurrent is removed, the device automatically resets and the circuit’s operation can be resumed. This makes it an ideal choice for applications where electrical safety is of utmost importance.

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