15LR190SU

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PTC resettable fuses, also known as polymeric positive temperature coefficient (PPTC) fuses, are based on a conductive polymer that turns the device from a low resistance to a high resistance when a certain current is exceeded. The 15LR190SU PTC resettable fuses are designed to protect applications such as telecommunications, consumer electronics and power conversion applications.

The 15LR190SU PTC resettable fuses are designed to be used as an uninterruptible power supply (UPS) input fuse in telecommunications and consumer electronic applications, as well as power conversion applications requiring medium overcurrent protection. This PTC resettable fuse is designed to continuously monitor current levels and open when an overload condition is detected in the power circuit.

The 15LR190SU PTC resettable fuses are designed to be connected in series with the protected circuit. When an overcurrent is detected, the fuse will open and create an open circuit, thus breaking the circuit and protecting the equipment from overheating and other damage. Once the overcurrent is corrected, the fuse will reset itself and the circuit will be restored.

The 15LR190SU PTC resettable fuses are constructed of a metal oxide film and a positive temperature coefficient (PTC) thermistor that form the fuse link. The metal oxide film acts as a conductor when energized, while the PTC thermistor acts as a resistor when energized. The combination of these two components enables the fuse to react quickly to overload and overcurrent conditions in the circuit.

The 15LR190SU PTC resettable fuses are designed with a rated current of 1.9 A and a maximum hold current of 16 A. The device has an operating temperature range of -40°C to +125°C and can withstand up to a maximum of 100 V. The fuses are UL, TUV, and RoHS compliant and have an agency approval rating of UL 248-14.

In summary, the 15LR190SU PTC resettable fuses are designed to protect against overcurrent events such as short circuits, overloads, and ground faults in applications such as telecommunications, consumer electronics, and power conversion. This device provides a cost-effective solution for controlling and monitoring overcurrent events in these types of applications.

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