TRF250-183U

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PTC Resettable Fuses, or Polymeric Positive Temperature Coefficient Resettable Fuses, are widely used to protect against over-current and short circuit events in a variety of products. TRF250-183U is a popular PTC Resettable Fuse from Tyco Electronics. This document looks at the uses of the TRF250-183U and provides an overview of how it works.

The TRF250-183U is a low-ohmic, sub-miniature PTC and is widely used in consumer electronics for over-current and short-circuit protection. It has two current ratings, 6A and 10A, and a trip temperature of 183°C (361°F). It offers fast trip times and excellent cyclic endurance, as well as a wide operating temperature range of -40°C to +105°C (-40°F to +221°F).

The TRF250-183U has a number of applications in a wide range of products, from laptops and mobile phones to electric vehicles and other industrial equipment. In consumer electronics, it is often used to protect against transient over-currents and short-circuits. It can also be used to replace traditional thermal fuses, as well as in LED lighting, AC/DC adapters, industrial sensors and other applications.

The working principle of the TRF250-183U is straightforward. When the current passing through the PTC exceeds a certain threshold, the temperature of the PTC rises and it reaches its \'trip temperature\'. At this point, the PTC activates and quickly reduces the current flow, protecting the connected device from further damage.

Once the current flow has been reduced, the PTC will then reset itself and return to its original state. This process is repeated, with the PTC resetting itself after each current surge, until the device is disconnected or the fault has been rectified.

The TRF250-183U PTC Resettable Fuse is an ideal solution for protecting against over-current and short-circuit conditions in a variety of products. It offers fast trip times, wide operating temperature range, excellent cyclic endurance and reliable reset capability, making it a trusted choice for consumer electronics, electric vehicles and other industrial applications.

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