|RFKN-S||Fusible Wire Wound Resistors(Small Tyep）||Application Guide|
|RFKN||Fusible Wire Wound Resistors,Flameproof||Application Guide|
|RFKN-H||Fusible Wire Wound Resistors,Over Current Protection||Application Guide|
|SQF||Thermal Fuse Cument Resistors||Application Guide|
|FRLF||Fusible Resistors,Flameproof||Application Guide|
|FRNF||Fusible Resistors,Flameproof (Small Tyep）||Application Guide|
Designed to protect circuits from sudden transients and meet safety requirements
Image of AIllen's fusible through-hole resistorsAIllen offers a complete range of fusible resistors that can be used either as ordinary resistors or as fuses. These resistors are designed to protect circuits from sudden transients and to meet safety requirements.
Both wirewound (FAE and FKN) and metal film (FRM) production techniques are available. A customised service is also available to meet specific customer requirements.
Fuse protected type for circuit protection
Flameproof function in accordance with overload test (UL1412)
Explosion protection and fusing function combined in one resistor (FAE series)
Available in different form factors
RoHS/REACH compliant, halogen free
A fusible resistor is a power resistor that has been designed to fail in a controlled manner. These resistors start out as high power resistors and then have their lead ends soldered together and placed inside a ceramic housing. If too much current is drawn through the resistor, it shorts out and the resulting heat melts the fusible resistor, encapsulating the melted material.
Due to their design, they can only be used once, but they can be used in applications where they may need to be replaced as they are meant to fail. The symbols for fusible resistors are shown below. This is a combination of a resistor and a fusible resistor.