RFU Series Low profile force sensor FEATURES · 0...1500 g range · High impedance bridge · Compact, commercial grade package · Robust performance characteristics · Ratiometric electrical output · Extremely low deflection · High ESD resistance · Sensortechnics PRO services ELECTRICAL CONNECTION SPECIFICATIONS Maximum ratings 3 ... 6 V Supply voltage Temperature limits Storage Operating -40 ... +100°C -40 ... +85°C Lead temperature (5 sec. soldering) Humidity limits Vs 1 315 °C 4 - Vout 0 ... 99 %RH Output Vibration (0 to 2000 Hz) (qualification tested, 0 to 2 KHz) Mechanical shock (qualification tested) Over force1 E / 11710 / A 2 20 g sine 150 g + Vout 3 GND 4500 g 1/3 www.sensortechnics.com RFU Series Low profile force sensor COMMON PERFORMANCE CHARACTERISTICS Vs = 5.0 ± 0.01 V, tamb = 25°C (unless otherwise noted) Characteristics Min. Operating force Zero pressure offset 2 Max. Unit 0 1500 g -15 +15 150 Span 4 Temperature effects (0 ... 50°C) 180 210 Offset ±0.5 Span -2200 Temperature effects on bridge impedance4 ±0.7 5 ±1.5 ±0.5 Repeatability at 300g5 ±1.5 4.0 5.0 6.0 Output impedance 4.0 5.0 6.0 MCTF (main cycles to failure at 50°C) 8 % sp a n mV Input impedance ESD (direct contact, terminals and plunger) mV ppm/ °C +2200 Linearity (BSL)3 Mechanical hysteresis Typ. kΩ kV 20 million cycles Specification notes: 1. 2. 3. 4. 5. The maximum specified force which may be applied to the sensor without causing a permanent change in the output characteristics. Span is the algebraic difference between the output voltage at full-scale force and the output at zero force. Span is ratiometric to the supply voltage. Linearity (BSL), the deviation of measured output at constant temperature (25°C) from "Best Straight Line" determined by three points, offset pressure, full-scale pressure and half full-scale pressure. Error band of the offset voltage, span or bridge impedance in the specified temperature range, relative to the 25°C reading. Repeatability, the deviation in output readings for successive application of any given input force (all other conditions remaining constant. Hysteresis, the error defined by the deviation in output signal obtained when a specific force point is approached first with increasing force, then with decreasing force or vice versa (all other conditions remaining constant). E / 11710 / A 2/3 www.sensortechnics.com RFU Series Low profile force sensor OUTLINE DRAWING Pin 1 3.81 (0.15) 4x 0.76 (0.03) 2 4x 2.54 (0.10) Pin 1 is designated by the laser marked surface 6.10 9.14 (0.24) (0.36) 4 3 5.59 (0.22) 0.50 (0.02) 1.57 (0.06) 4x 0.25 (0.01) 3.25 (0.13) 0.76 (0.03) mass: 2 g dimensions in mm (inches) ORDERING INFORMATION Series Pressure range Options R FU 1500 Example: R FU 1500 0...1500 g Lead style 1 Straight 1 Packaging P Blister p a ck P Sensortechnics PRO services: · Extended guarantee period of 2 years · Improved performance characteristics · Custom product modifications and adaptations even for small quantities · Advanced logistics models for supply inventory and short delivery times · Technical support through application engineers on the phone or at your site · Fastest possible technical response for design and QA engineers ... plus other services on request Sensortechnics reserves the right to make changes to any products herein. Sensortechnics does not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. E / 11710 / A 3/3 www.sensortechnics.com