RXEF010S

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PTC Resettable Fuses

PTC Resettable Fuses (Polymer positive temperature coefficient) are overcurrent protective devices designed to limit current surge as well as to restore the circuit after overcurrent situation has been eliminated. Manufactured by prominent suppliers such as Bourns, these devices provide advanced overcurrent protection, assuring dependable power supply and system protection. By integrating a low-resistance, semiconductor element with a positive temperature coefficient (PTC) into a robust package, these devices quickly detect and latch off under overcurrent conditions.

RXEF010S Application Field and Working Principle

RXEF010S resettable fuses from Bourns are designed to protect device against overcurrent events in a wide range of applications ranging from consumer electronics to industrial electronic systems. The RXEF010S has a wide range of current rating form 4.4Amps to 6.8Amps, with both leaded and SMD packages being available. The device has a temperature coefficient of 10K/W and is based on a low temperature co-efficient PTC element.

RXEF010S devices are designed to offer protection of non-thermal sensitive electronic systems against short-circuits or other overcurrent situations and can be used for circuit protection in both retrofit and new designs. RXEF010S is available in two different packages: a leaded form factor for through hole applications and a surface mount form factor for SMD application.

RXEF010S devices are designed to be installed on the primary side of the power distribution system in order to protect against catastrophic overcurrents. Upon overcurrent sensing, the device is designed to respond quickly and latch off, providing a low resistance path across the circuit. Upon removal of the overcurrent conditions, the system is then allowed to cool sufficiently before the fuse will reset itself. Upon reset, the device will reduce its resistance back to a low resistance allowing the circuit to resume normal operation.

The RXEF010S is designed with a number of features to ensure a reliable protective action throughout its operation. The active element of the resettable fuse includes a temperature coefficient of 10K/W that ensures the device behaves consistently across operating temperatures. The positive temperature coefficient further contributes to the dynamic response of the device, ensuring it quickly and reliably responds to any overcurrent conditions.

The RXEF010S is further designed to include the use of a PCB plug-in form factor, meaning that the devices can be installed quickly and without the need for cumbersome soldering. This makes the RXEF010S an ideal choice for quick fit applications where rapid installation of the device is essential. It also ensures consistent connection between the device and the power supply that would otherwise be affected by the use of soldering.

In summary, RXEF010S PTC resettable fuse from Bourns is a safe, reliable and cost effective solution for circuit protection against overcurrent. From high current and high performance consumer electronics to industrial and automotive applications, the device is designed to provide a reliable implementation of a complete protection solution. The device has been designed to provide quick and safe detection of abnormal current conditions, before responding quickly and latching off the circuit. The device can be installed quickly without the need for soldering, making it an ideal choice for quick fit applications.

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