15LR190U

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PTC Resettable Fuses are an extremely important element in circuit protection. In modern electronics, components such as electric lamps, regulators, and wiring need protection from damage due to overcurrent manipulation. The 15LR190U Resettable Fuse is designed to be used as a resettable fuse in electronic PCBs to protect the circuit from overcurrent and overvoltage events.

The 15LR190U Resettable Fuse has several attractive features including its overcurrent, overvoltage, and short circuit protection, and its ability to be reset after a current overload or overvoltage event. It\'s made of a hard plastic shell and its contact terminal is made of MCPX Si terminal. It is a low-power device, with a current rating of more than 10A and a leakage current of 1mA or less, and it also offers a high power rating of up to 190A.

The 15LR190U is suitable for most applications, including motor control, lighting control, ambulance and bus systems, communications and power systems, Li-ion battery protection, and etc.

The working principle of the 15LR190U Resettable Fuse is based on the process of PTC a.k.a. positive temperature coefficient thermistors, which has thermally activated characteristics that cause a rise in their resistance when exposed to an excessive amount of current. When the current flowing through the fuse exceeds its trip current rating, the internal temperature of the device will increase, causing the PTC to transition into a high resistance state which limits the flow of current through it. This protects the component and circuit from any further damage.

The 15LR190U Resettable Fuse also has an overvoltage protection feature. When the voltage across the fuse exceeds the rated maximum voltage, the internal temperature of the device will increase, causing the PTC to transition into a high resistance state. This allows for a rapid break of the circuit, preventing overvoltage damages to the components.

The 15LR190U Resettable Fuse is easy to install, as it only requires two small mounting holes. It also has a low current rating, making it a suitable choice for low-power applications. Additionally, the 15LR190U Resettable Fuse is inexpensive, making it a cost-effective solution for low-voltage circuit protection.

Overall, the 15LR190U Resettable Fuse is an ideal choice for protecting circuits from overvoltage and overcurrent events in electronics and other applications. It can easily be installed in circuits and provides reliable protection at a cost-effective price.

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