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 Trace width Tail width FSR01CE 39.70 x 39.70mm 0.375mm 43.69 x 43.69mm 83.09mm 39.40mm 7.62mm FSR02CE 604.60 x 10.20mm 0.375mm 15.20mm 622.30mm 12.70mm 7.60mm FSR03CE 25.42mm 0.425mm 30.50mm 69.00mm 38.00mm 7.62mm ChARACTERISTICS Mode Shunt Characteristic Description FSR01CE FSR02CE FSR03CE Trace pitch 0.25mm Actuation Force to reach 10M, Average of 100 samples < 20g < 20g < 10g Spacer height 0.50mm force 0.125mm Tail length linear region of log/log, Higher forces can be Force range All: Up to 5kg achieved with custom sensor and actuation methods Long term 1kg for 48hrs, Per log time < 2% < 1% < 1% drift Single part 100 actuations of 1kg, 1 standard deviation/mean All: 2% repeatability Part to part 100 sensors same batch, 1 standard deviation/ All: 4% repeatability mean 20C for 250hrs, Avg. change in resistance of 5 Low temp. 8% 7% 7% sensors storage High temp. +85C for 250hrs, Avg. change in resistance of 5 4% 3% 3% storage sensors High humidity +85C/85%RH for 250hrs, Avg. change in 8% 12% 8% storage resistance of 5 sensors Lifecycle (10M) 1kg force at 3Hz, Avg. change in resistance 17% 12% 3% durability of 4 sensors Hysteresis 100 actuations of 1kg, Avg. change in resistance All: 5% of 100 samples Operational 100 cycles at 0.5kg All: 20 to +85C temp. range Note: All values typical, and quoted at 10N applied force unless otherwise stated. Force dependant on actuation interface, mechanics, touch location, and measurement electronics. 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 FSR01CE FSR02CE FSR03CE 604.60 x 10.20 39.70 x 39.70 Active area Active area 43.69 x 43.69 25.42 15.20 Active area 30.50 622.30 69.00 83.09 7.60 Interconnect CCNT 7.62 female crimp with housing 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 2/18-2 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 11