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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
SPECIFICATIONS
Maximum ratings Supply voltage Temperature limits Storage Operating Lead temperature (5 sec. soldering) Humidity limits Vibration (0 to 2000 Hz) (qualification tested, 0 to 2 KHz) Mechanical shock (qualification tested) Over force1 3 ... 6 V
ELECTRICAL CONNECTION
-40 ... +100C -40 ... +85C 315 C 0 ... 99 %RH
Vs 1
4
- Vout
Output
20 g sine 150 g 4500 g
2 3 GND
+ Vout
E / 11710 / A
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RFU Series
Low profile force sensor
COMMON PERFORMANCE CHARACTERISTICS
Vs = 5.0 0.01 V, tamb = 25C (unless otherwise noted)
Characteristics
Operating force Zero pressure offset Span
2 4
Min.
0 -15 150 Offset Span
Typ.
Max.
1500 +15
Unit
g mV
180 0.5 -2200 +2200 0.7
210
Temperature effects (0 ... 50C)
Temperature effects on bridge impedance4 Linearity (BSL)3 Mechanical hysteresis Input impedance Output impedance ESD (direct contact, terminals and plunger) MCTF (main cycles to failure at 50C)
5
ppm/ C 1.5 % sp a n mV 6.0 6.0 k kV
0.5 1.5 4.0 4.0 8 20 5.0 5.0
Repeatability at 300g5
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 (25C) 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 25C 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
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RFU Series
Low profile force sensor
OUTLINE DRAWING
Pin 1
3.81 (0.15)
4x 0.76 (0.03) 4x 2.54 (0.10)
2 Pin 1 is designated by the laser marked surface
6.10 9.14 (0.24) (0.36)
4
1.57 (0.06) 4x 0.25 (0.01)
3
0.50 (0.02)
5.59 (0.22)
3.25 (0.13)
mass: 2 g
0.76 (0.03)
dimensions in mm (inches)
ORDERING INFORMATION
Series Options R FU 1500 Pressure range 0...1500 g 1 Lead style Straight Packaging P Blister p a ck
Example:
R FU
1500
1
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
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