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Fuse resistors are electronic components which, in addition to their typical role, have an important protective function. If the power dissipated on the resistor does not exceed its characteristic limit value, this component behaves like a normal resistor. It reduces the current flow by converting electrical energy into heat dissipated from the system. However, if, for some reasons, the power increases above a certain level, the fuse resistor will blow. This will protect other sensitive parts of the system from damage. Its features and design will not cause fire or explosion. The component will therefore act as a delayed fuse, but with a more delayed response. The fuse resistor is used in power supplies or chargers, especially low power ones.
In the Transfer Multisort Elektronik catalogue you will find metal film fuse resistors manufactured, among others, by ROYAL OHM. They are designed for THT (through-hole technology) mounting with soldering of axial leads to other application components. The filter system available at TME website allows for quick selection of resistors with an allowed power of 1W or 2W. It is also easy to select the required resistance – from 100mΩ to 10kΩ. Resistance tolerance in these products is ±10%. Depending on your needs, you can also choose a specific size of the body or leads.
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