These are Force Sensing ResistorsĀ® or FSRsĀ® manufactured by Interlink Electronics.  As used in the latest development of the Kossel 3D printers.

FSR402 0.5" Diameter with solder tabs.

Digikey Part Number: 1027-1001-ND

Manufacturer's Part Number: 30-81794

Manufacturer's Data sheet

Active Area 14.68mm dia

Nominal Thckness: 0.46mm

Non Actuated Resistance: >10 megohms

Sensing range: Approx. 0.2N - 20N

Force Sensing Resistor FSR402

  • Product Code: FSR402
  • Availability: Out Of Stock
  • $12.00

  • Ex Tax: $10.43