MICROSMD..FResettable SMD device, 30 V max.

  • low resistance
  • fast time-to-trip
  • suitable for very-high-density board applications
  • minimized sizes
  • CSA
  • EU ELV
  • EU RoHS
  • UL file

The low-ohmic device MICROSMD..F on polymer basis has a positive temperature coefficient (PTC). It is suited for protective functions of electronic applications within a voltage range up to 30 V. MICROSMD..F offers functions seen in a fuse, and upon heating (e.g. through over currents or short circuits) amplifies its resistivity from an initial low-ohmic resistor to a very high-ohmic resistor. MICROSMD..F is immune to manipulation and resets after debugging.

Thermal properties

Operating temperature -40 °C  to  85 °C

Chemical properties

Fluid resistance Freon®, trichlorethane, hydrocarbons


lead material matte tin with nickel underplate
Materials tin plated copper, NICKELUNTERLEGT, fluorocarbon doped synthetic material
Halogen content low halogen


EU RoHS RoHS compliant
EU ELV ELV compliant
CSA CA78165
UL file E74889

General properties

Brand PolySwitch
design surface mount
Markets Automotive, Industrial, IT


Size range of product family 0,05 ... 2,0 A bei 20 °C

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