FSR Series Force Sensing Resistor The Ohmite FSR series exhibits the unique characteristic of dynamic resistance related to the amount of applied force. In general, the more force applied to the surface of the sensor, the lower the resistance. The resistance change is inversely proportional to the applied force. Typical force-sensing resistors are characterized for Human- Machine Interface (HMI) or Machine-Machine Interface (MMI) applications with a sensing range from circa 20g to 5Kg. Specific device character- istics will depend on the size, shape and materials used in construction. Force-sensing resistors are intended for applications where a delta in applied force is to be detected. They are not intended for high accu- racy or specific weight measurement applications. SERIES SPECIFICATIONS Thickness (inc. Sensor overall Sensor Series Active area 0.05mm adhesive) width overall length Tail length Tail width FSR01 39.70 x 39.70mm 0.375mm 43.69 x 43.69mm 83.09mm 39.40mm 7.62mm FSR02 604.60 x 10.20mm 0.375mm 15.20mm 622.30mm 12.70mm 7.60mm FSR03 25.42mm 0.425mm 30.50mm 69.00mm 38.00mm 7.62mm FSR04 5.60mm 0.325mm 7.62mm 15.80mm 9.00mm 6.35mm FSR05 5.60mm 0.325mm 7.62mm 38.10mm 30.00mm 6.35mm FSR06 14.70mm 0.375mm 18.00mm 25.00mm 9.00mm 7.62mm FSR07 14.70mm 0.375mm 18.00mm 56.34mm 38.00mm 7.62mm ChARACTERISTICS Characteristic Description FSR01 FSR02 FSR03 FSR04 FSR05 FSR06 FSR07 Actuation force Force to reach 10M, Average of 100 samples < 20g < 20g < 10g <20g <30g <15g <15g linear region of log/log, Higher forces can be achieved with Force range All: Up to 5kg custom sensor and actuation methods Long term drift 1kg for 48hrs, Per log time < 2% < 1% < 1% < 2% < 2% 1% 1% Single part repeatability 100 actuations of 1kg, 1 standard deviation/mean All: 2% Part to part repeatability 100 sensors same batch, 1 standard deviation/mean All: 4% 20C for 250hrs, Avg. change in res. of 5 sensors Low temp. storage 8% 7% 7% 8% 8% 7% 7% High temp. storage +85C for 250hrs, Avg. change in res. of 5 sensors 4% 3% 3% 4% 4% 3% 3% High humidity storage +85C/85%RH for 250hrs, Avg. change in res. of 5 sensors 8% 12% 8% 8% 8% 12% 12% Lifecycle durability (10M) 1kg force at 3Hz, Avg. change in res. of 4 sensors 17% 12% 3% 7% 7% 3% 3% Hysteresis 100 actuations of 1kg, Avg. change in res. of 100 samples All: 5% 100 cycles at 0.5kg Operational temp. range All: 20 to +85C Note: All values typical, and quoted at 10N applied force unless otherwise stated. Force dependant on actuation interface, mechanics, touch location, and measure- ment electronics. FSR01-03 FSR04 FSR05 FSR06 FSR07 Shunt Shunt Shunt Shunt Shunt Mode Trace pitch 0.25mm 0.50mm 0.50mm 0.50mm 0.50mm Spacer height 0.125mm 0.125mm 0.125mm 0.125mm 0.125mm Trace width 0.25mm 0.25mm 0.25mm 0.25mm 0.25mm 10 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.comFSR Series Force Sensing Resistor dImENSIONS FSR01 FSR02 FSR03 FSR04 FSR05 604.60 x 10.20 39.70 x 39.70 Active area 5.60 Active area 43.69 x 43.69 25.42 5.60 15.20 Active area 7.62 7.62 Active area 30.50 Active area 15.80 6.35 38.10 622.30 FSR07 69.00 14.70 Active area 18.00 6.35 83.09 FSR06 7.60 14.70 Active area 18.00 56.34 7.62 25.00 Interconnect B 7.62 Solder tab Interconnect C Female crimp with housing 7.62 7.62 ORdERINg INFORmATION Terminal type A = Bare tail B = Solder tab C = Connector housing (female, equivalent to Nicomatic 14106-12 and OF02) D, E = Assigned sequentially for custom designs RoHS FSR03C X E Compliant Series FSR Format Modifier Force sensing 01 = Std. square for custom resistor 02 = Std. strip designs (optional) 03 = Std. round 04, 05... = Assigned sequentially for custom designs rev 4/19-2 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 11