Features - Linear Position Sensor - IP65 Dust Proof, Water Proof (Intense Spray) - Polyester Substrate - 3M Pressure Sensitive Adhesive (PSA) - Upon Request - Male or Female Nicomatic or Berg Connectors - Wiper of 1-3 Newton Force to Actuate Part - Higher Temperature and/or Contactless Options Available Mechanical Specifications Electrical Specifications -Life Cycle: >1 million -Height: 0.51mm (0.020") -Actuation Force (with a 10mm wide active cavity): -40°C 0.8 to 1.8 N -25°C 0.8 to 1.8 N +23°C 0.6 to 1.5 N +50°C 0.6 to 1.5 N -Resistance - Standard: 10k Ohms (lengths >300mm = 20k Ohms) -Resistance - Custom: 1k to 100k Ohms -Resistance Tolerance: ±20% -Effective Electrical Travel: 8 to 2000mm -Linearity (Independent): Linear ±1% & 3% Rotary ±3% & 5% -Repeatability: No hysteresis, but with any wiper looseness some hysteresis will occur -Power Rating (depending on size, varies with length and temperature): 1 Watt max. @ 25°C, 0.5 Watt recommended -Resolution: Analog output theoretically infinite; affected by variation of contact wiper surface area. -Dielectric Value: No affect @ 500VAC for 1 minute Environmental Specifications -Operating Temperature: -40°C to +50°C -Humidity: No affect @ 95% RH, 4hrs 50°C -IP Rating of Active Area: IP65 Dimensional Diagram - Stock Linear SoftPot PART LENGTH [P] 10.16 [0.400] TAIL WIDTH ACTIVE LENGTH [A] PIN 1 20.32 [0.800] 6.60 [0.260] TAIL LENGTH [T] 7.11 [0.280] ACTIVE WIDTH 7.93 [0.312] A 12.50mm 0.492" 25.00mm 0.984" 50.00mm 100.00mm 150.00mm 170.00mm 200.00mm 300.00mm 400.00mm 500.00mm 750.00mm 1000.00mm 6.693" 29.528" 39.370" 1.969" 3.937" 5.906" 7.874" 11.811" 15.748" 19.685" P 28.36mm 1.117" 40.86mm 1.609" 65.86mm 2.593" T 12.70mm 0.500" spectrasymbol.com 115.86mm 4.562" 165.86mm 6.531" 185.86mm 7.318" 215.86mm 8.499" 315.86mm 12.436" 415.86mm 16.373" 515.86mm 20.310" 765.86mm 30.153" 1015.86mm 39.995" 24.89mm 0.980" Rev F2 - Page 1 (888) 795-2283 Electrical Schematic Material Cross-Section PIN 3 (GND) (LEFT BUS BAR) 0.41 [0.016] CIRCUIT PIN 2 (COLLECTOR) 0.05 [0.002] 3M 200MP ADHESIVE PIN 1 (V+) 0.46 [0.018] TOTAL THICKNESS (RIGHT BUS BAR) 10K or 20K How to Order - Linear SoftPots SP L 0050 103 Series Model Active Length Resistance SP = SoftPot L = Linear 0012 = 12,5mm 0025 = 25mm 0050 = 50mm 0100 = 100mm 0150 = 150mm 0170 = 170mm 0200 = 200mm 0300 = 300mm 0400 = 400mm 0500 = 500mm 0750 = 750mm 1000 = 1000mm 3% Active Lengths < 300mm 103 = 10 KOhm Active Lengths > 300mm 203 = 20 KOhm ST Connectors ST = Solder Tab MP = Male Pins RH = Receptacles w/Plain Housing RL = Receptacles w/Latch Housing RD = Receptacles w/Detent Housing B = FCI/Berg Clincher Ind. Linearity 1% = ±1% 3% = ±3% Standard Connector Options Crimpflex Solder Tab (ST) Crimpflex Short Male Pins (MP) Crimpflex Female Receptacles with a Plain Housing (RH) Crimpflex Female Receptacles with a Latch Housing (RL) Crimpflex Female Receptacles with a Detent Housing (RD) FCI/Berg Clincher (B) spectrasymbol.com Page 2 (888) 795-2283 Customization Customize the size, shape, and even the number of tracks. Such custom requests, for example, can be: multiple ganged sensors (up to 40 tracks); serpentine active area track; custom lengths 10mm-2000mm; custom rotary diameters, etc. Feel free to contact Spectra Symbol with your custom request at [email protected] or (888)795-2283.. How It Works In simple terms, the SoftPot membrane potentiometer is a resistive element, which comprises a conductive resistor, a sealed encasement and a simple wiper assembly. A membrane potentiometer can also function as a voltage divider. The SoftPot is a three-wire system with two resistive output channels and an electrical collector channel. Top Circuit (Collector) Circuit Spacer Bottom Circuit (Resistor) Bottom Adhesive By pressing a wiper down onto the top circuit the SoftPot produces the desired electrical output. The "wiper" is a non-conductive mechanism that depresses the top circuit actuating the potentiometer from the outside of the element. The top and bottom circuits are separated by 0.15mm (0.006") of spacer adhesive build-up and contact between the circuit occurs by pressure (usually 1-3 Newtons) from the wiper on the top circuit, pushing down until the top circuit connects with the bottom circuit to create a potentiometric output. The construction of the wiper design can adapt to any application because most materials can serve as the wiper: plastics, metals, sliders, rollers, wheels, etc. Also, the SoftPot can also be manually (hand) actuated. spectrasymbol.com Page 3 (888) 795-2283 Wiper Typical wiper materials are delrin, plastic injection molded products, metal rollers with back-loaded springs, sliders attached to lead-screws, etc. With small quantities, an off-the-shelf solution might be easier, while with higher quantities or space limitations a custom wiper may be required. The stock 1-3 Newton wiper is an excellent product for most applications. In case of unique applications, extreme environment or cycle needs, it is recommended to seek the advice of the Spectra Symbol Design Department. The selection of the correct wiper (material, form) can affect the life cycle and electrical output of the SoftPot. Stock Wiper Mechanical Specifications -Minimum Force: 1 Newton -Maximum Force: 3 Newtons -Tip Material: Delrin -Thread Pitch: M1.0 (1mm) Dimensional Diagram 6.00 [0.236] 1.00 [0.039] 14.00 [0.551] 16.00 [0.629] Ø2.70 [Ø0.106] How to Order - Stock Wiper WP M1 01 03 014 DI Series Thread Pitch Min. Force Max. Force Threaded Body Length Tip Material WP = Wiper M1 = M1.0 01 = 1 Newton 03 = 3 Newtons 014 = 14mm DI = Delrin spectrasymbol.com Page 4 (888) 795-2283 Diagram - Stock Rotary SoftPot 10.01 [0.394] ACTIVE WIDTH Ø65.74 [Ø2.588] OUTSIDE PERIMETER Ø25.40 [Ø1.000] THRU HOLE Ø45.57 [Ø1.794] (CENTER OF TRACK) 10.16 [0.400] 353° ACTIVE ANGLE PIN 1 5.08 [0.200] 5.08 [0.200] 111.88 [4.405] Electrical Schematic Material Cross-Section PIN 3 (GND) (LEFT BUS BAR) 0.41 [0.016] CIRCUIT PIN 2 (COLLECTOR) 0.05 [0.002] 3M 200MP ADHESIVE PIN 1 (V+) 10K 0.46 [0.018] TOTAL THICKNESS (RIGHT BUS BAR) How to Order - Rotary SoftPot SP R Series Model SP = SoftPot R = Rotary 0046 Center of Active Track 0046 = 45.57mm 0353 103 Active Angle Resistance 0353 = 353° 103 = 10 KOhm Ind. Linearity 3% = ±3% 5% = ±5% spectrasymbol.com Page 5 5% ST Connectors ST = Soldertab MP = Male Pins RH = Receptacles w/Plain Housing RL = Receptacles w/Latch Housing RD = Receptacles w/Detent Housing B = FCI/Berg Clincher (888) 795-2283