PTCTT95R350GTE Circuit Protection

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PTC resettable fuses are polymeric positive temperature coefficient (Poly-switch or PTC) temperature-sensing devices that act as resettable fuses. They are used to protect current-carrying equipment from overcurrent conditions that may cause damage or malfunction. The PTC resettable fuse, also known as polymeric positive temperature coefficient (Poly-switch or PTC), is a type of circuit protection device that uses thermally-sensitive semiconductor materials to provide a safe and reliable overcurrent protection. The PTC resettable fuse is designed to sense an overcurrent condition and respond by allowing a current flow to stop until the overcurrent situation is resolved.

The PTCTT95R350GTE is one such resettable fuse. It is specifically designed for applications requiring low ohmic resistance and high current rating. The PTCTT95R350GTE has a diameter of 18.6mm and a height of 32.4mm. The total weight of the device is 7.75g. The fuse has a rated voltage of 250VAC, a maximum operating voltage of 350VAC and a rated interruption current of 18A.

The PTCTT95R350GTE can be used in a variety of applications, from industrial environments to consumer electronics. In industrial applications, the fuse can be used to protect motors, switchgear, thermal cut-offs, and other current-carrying devices from damage due to overload or short circuit conditions. In consumer electronics, it can be used to protect electronic devices from the effects of overcurrent, overvoltage and short circuit. The PTC resettable fuse is also often used in automotive and other transportation systems to protect against hazardous equipment and circuitry.

The working principle of PTC fuses is based on the thermistor effect, which states that the resistance of a semiconductor material changes with temperature. In the case of the PTC fuse, the resistance increases dramatically in a short period of time when subjected to an overcurrent. This increase in resistance causes a rise in temperature, which is monitored by the fuse. If the current level exceeds the fuses rated limit, it will open the circuit, cutting off the current flow. Once the current is no longer present, the fuse will then cool off and reset, allowing the current to flow again.

In conclusion, the PTCTT95R350GTE is an example of a PTC resettable fuse. It has a high current rating and low ohmic resistance, making it a suitable choice for a variety of applications. The fuses are able to provide reliable, safe protection against overcurrent, overvoltage and short circuit conditions. The working principle of the PTC fuse is based on the thermistor effect, which causes the resistance of the device to increase when subjected to an overcurrent, cutting off the current flow and resetting the fuse once the current is gone.

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