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Actual size of sensor 7.6mm (.30 in.) Sensing Area 15.6 mm (.62 in.) 3.7 mm (.15 in.) FlexiForce™ Standard Model A101 The FlexiForce A101 is our smallest standard piezoresistive force sensor. The A101 design is optimized for high volume manufacturing and is ideal for embedding into products and applications. This sensor is available off-the-shelf for easy proof of concept. The A101 can be used with our test & measurement, prototyping, and embedding electronics, including the FlexiForce Sensor Characterization Kit, FlexiForce Prototyping Kit, FlexiForce Quickstart Board, and the ELF™ System*. You can also use your own electronics, or multimeter. Physical Properties Benefits • Small size is ideal for prototyping and integration Thickness 0.203 mm (0.008 in.) Length 15.6 mm (.62 in.)** Width 7.6 mm (0.30 in.) Sensing Area 3.8 mm (0.15 in.) diameter Connector 2-pin Male Square Pin Substrate Polyester Pin Spacing 2.54 mm (0.1 in.) • Thin and flexible • Easy to use ✓ROHS COMPLIANT * Sensor will require an adapter/extender to connect to the FlexiForce Sensor Characterization Kit, FlexiForce Prototyping Kit, and ELF Systems. Contact your Tekscan representative for assistance. **Length does not include pins. Please add approximately 3.7 mm (0.15 in.) for pin length for a total length of approximately 19.3 mm (0.75 in). Linearity (Error) Repeatability Hysteresis Drift Response Time Typical Performance Evaluation Conditions < ±3% of full scale Line drawn from 0 to 50% load < ±2.5% Conditioned sensor, 80% of full force applied < 4.5% of full scale Conditioned sensor, 80% of full force applied < 5% per logarithmic time scale Constant load of 111 N (25 lb) < 5µsec Impact load, output recorded on oscilloscope -40°C - 60°C (-40°F - 140°F) Convection and conduction heat sources Durability ≥ 3 million actuations Perpendicular load, room temperature, 22 N (5 lb) Temperature Sensitivity 0.36%/°C (± 0.2%/°F) Conductive heating Operating Temperature *** ***All data above was collected utilizing an Op Amp Circuit (shown on the next page). If your application cannot allow an Op Amp Circuit, visit www.tekscan.com/flexiforce-integration-guides, or contact a FlexiForce Applications Engineer. DS Rev J 062821 ISO 9001:2008 Compliant & 13485:2016 Registered Typical Performance 35.00 300.00 30.00 Resistance (kΩ) 25.00 200.00 20.00 150.00 15.00 100.00 10.00 Force (lbs) 0.5 0.25 30.85 32.41 0.5 1 11.73 85.20 0.5 2 6.33 158.00 0.5 3 4.49 222.59 0.5 4 3.60 277.53 50.00 5.00 0.00 Voltage (V) Conductance (μS) 250.00 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 Force (lbs) Resistance Standard Force Ranges • Sensor acceptance criteria ±40% of nominal • Sensor resistance measured 20 seconds after applied load • Sensor loaded through a polycarbonate puck equal to 68% (0.0123 in2) of total active area • Sensor was not attached to any drive circuitry This sensor can measure up to 44 N (10 lb). In order to measure higher forces, apply a lower drive voltage (-0.5 V, -0.25 V, etc.) and reduce the resistance of the feedback resistor (1kΩ min.). To measure lower forces, apply a higher drive voltage and increase the resistance of the feedback resistor. † as Tested with Circuit Shown 18 N (0 - 4 lb) † Conductance 0.00 Resistance Conductance (kΩ) (μS) Sensor output is a function of many variables, including interface materials. Therefore, Tekscan recommends the user calibrate each sensor for the application. Recommended Circuit VOUT = -VREF * (RF / RS) VREF Options VDD = VSUPPLY Square Wave Up to 5V, 50% Max Duty Cycle DC 0.25V - 1.25V MCP6004 VOUT RS -VREF RFEEDBACK (RF) = 100kΩ C1 = 47 pF VSS = Ground POTENTIOMETER RFEEDBACK C1 100K potentiometer and 47 pF are general recommendations; your specific sensor may be best suited with a different potentiometer and capacitor. Testing should be performed to determine this. • Polarity of VREF must be opposite the polarity of VSUPPLY • Sensor Resistance RS at no load is typically >1MΩ • Max recommended current is 2.5mA Purchase Today Online at www.tekscan.com/store ©Tekscan Inc., 2020. All rights reserved. Tekscan, the Tekscan logo, and FlexiForce are trademarks or registered trademarks of Tekscan, Inc. +1.617.464.4283 | 1.800.248.3669 | info@tekscan.com | $£ ¥$ VOLUME € ur bout O A Ask Us DISCOUNTS www.tekscan.com/flexiforce