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FSR® 400 Series Datasheet

Interlink Electronics

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Datasheet

Features and Benefits
Force Sensing Resistors®
Description
Interlink Electronics FSR® 400 Series is part of the single zone Force Sensing Resistor®
family. Force Sensing Resistors, or FSR's, are robust polymer thick film (PTF) devices that
exhibit a decrease in resistance with increase in force applied to the surface of the sensor.
This force sensitivity is optimized for use in human machine interface devices
including automotive electronics, medical systems, industrial controls and robotics.
The FSR 400 Series sensors come in seven different models with four different connecting
options. A battery operated demo is available. Call us for more information at
+1 805-484-8855.
FSR® 400 Series Data Sheet
Human-Machine Interface Solutions for a Connected World
P/N: PDS-10004-C
FSR® 400 Short
5mm Circle x 20mm
FSR® 400
5mm Circle x 38mm
FSR® 402 Short
13mm Circle x 25mm
FSR® 402
13mm Circle x 56mm
FSR® 404
20mm Donut with 5.5mm hold
FSR® 406
38mm Square x 83mm
FSR® 408-xxx
10mm Wide x xxx mm strip
xxx = 50, 100, 200, 300, 400, 500mm
• Actuation force as low as 0.2N
and sensitivity range to 20N
Cost effective
Ultra thin
Robust; up to 10M actuations
Simple and easy to integrate
Force Sensing Resistors®
Specifications are derived from measurements taken at 1000 grams, and are given as (one standard deviation/mean), unless otherwise noted.
*Typical value. Force dependent on actuation interface, mechanics, and measurement electronics.
FSR® 400 Series Data Sheet
Device Characteristics
Actuation Force*
Force Sensitivity Range*
Force Resolution
Force Repeatability Single Part
Force Repeatability Part to Part
Non-Actuated Resistance
Hysteresis
Device Rise Time
Long Term Drift
1kg load, 35 days
Operating Temperature Performance
Cold: -40ºC after 1 hour
Hot: +85ºC after 1 hour
Hot Humid: +85ºC 95RH after 1 hour
Storage Temperature Performance
Cold: -25ºC after 120 hours
Hot: +85ºC after 120 hours
Hot Humid: +85ºC 95RH after 240 hours
Tap Durability
Tested to 10 Million actuations, 1kg, 4Hz
Standing Load Durability
2.5kg for 24 hours
EMI
ESD
UL
RoHS
~0.2N min
~0.2N – 20N
Continuous (analog)
+/- 2%
+/- 6% (Single Batch)
>10 Mohms
+10% Average (RF+ - RF-)/RF+
< 3 Microseconds
< 5% log10(time)
-5% average resistance change
-15% average resistance change
+10% average resistance change
-10% average resistance change
-%5 average resistance change
+30% average resistance change
-10% average resistance change
-5% average resistance change
Generates no EMI
Not ESD Sensitive
All materials UL grade 94 V-1 or better
Compliant
Connector Information
Application Information
For specific application needs please contact Interlink Electronics support team.
An Integration Guide and Hardware Development Kit (HDK) are also available.
FSR's are two-wire devices with a resistance that depends on applied
force. Below is a force vs. resistance graph that illustrates a typical FSR®
response characteristic. Please note that the graph values are reference only
and actual values are dependent upon actuation system mechanics and
sensor geometry.
For simple force-to-voltage conversion, the FSR device is tied to a measuring
resistor in a voltage divider (see figure below) and the output is described by the
following equation.
Force Sensing Resistor®
FSR® 400 Series Data Sheet
In the configuration shown, the output voltage increases with increasing force. If RFSR
and RM are swapped, the output swing will decrease with increasing force. The
measuring resistor, RM, is chosen to maximize the desired force sensitivity range and
to limit current. Depending on the impedance requirements of the measuring circuit,
the voltage divider could be followed by an op-amp.
A family of force vs. VOUT curves is shown on the graph below for a standard FSR in a
voltage divider configuration with various RM resistors. A V+ of 5V was used for these
examples. Please note that the graph values are for reference only and will vary between
different sensors and applications.
Refer to the FSR Integration Guide for more integration methods and techniques.
Force Sensing Resistor®
FSR® Model 400
Sensor Mechanical Data
Model 400:
Active Area: Ø5.08mm
Nominal Thickness: 0.30mm
Switch Travel: 0.05mm
Available Part Numbers:
PN: 34-00007 Model 400
- No contacts or solder tabs
PN: 34-00011 Model 400
- with female contacts
PN: 34-44001 Model 400
- with female contacts and housing
PN: 30-49649 Model 400
- with solder tabs
Exploded View
Force Sensing Resistor®
Exploded View
Sensor Mechanical Data
FSR® Model 400 Short Tail
Model 400 Short Tail:
Active Area: Ø5.62mm
Nominal Thickness: 0.30mm
Switch Travel: 0.05mm
Available Part Numbers:
PN: 34-47021 Model 400 Short Tail
- No contacts or solder tabs
PN: 34-00005 Model 400 Short Tail
- with female contacts
PN: 34-00006 Model 400 Short Tail
-with female contacts and housing
PN: 34-00004 Model 400 Short Tail
- with solder tabs
Force Sensing Resistor®
FSR® Model 402
Model 402:
Active Area: Ø14.68mm
Nominal Thickness: 0.46mm
Switch Travel: 0.15mm
Available Part Numbers:
PN: 44-29103 Model 402
- No contacts or solder tabs
PN: 34-00012 Model 402
- with female contacts
PN: 34-00001 Model 402
- with female contacts and housing
PN: 30-81794 Model 402
- with solder tabs
Exploded View
Sensor Mechanical Data
Force Sensing Resistor®
FSR® Model 402 Short Tail
Model 402 Short Tail:
Active Area: Ø12.70mm
Nominal Thickness: 0.46mm
Switch Travel: 0.15mm
Available Part Numbers:
PN: 34-00016 Model 402 Short Tail
- No contacts or solder tabs
PN: 34-00017 Model 402 Short Tail
- with female contacts
PN: 34-00018 Model 402 Short Tail
- with female contacts and housing
PN: 34-00015 Model 402 Short Tail
- with solder tabs
Exploded View
Sensor Mechanical Data
Force Sensing Resistor®
FSR® Model 40 6LQJOH=RQH'RQXW
Model 404 Single Zone Donut:
Active Area: Ø4.35mm
Nominal Thickness: 0.53mm
Switch Travel: 0.05mm
Available Part Numbers:
PN: 34-00065 Model 404 Single Zone Donut
- with solder tabs
Exploded View
Sensor Mechanical Data
Force Sensing Resistor®
FSR® Model 406
Model 406:
Active Area: 39.6mm x 39.6mm
Nominal Thickness: 0.46mm
Switch Travel: 0.15mm
Available Part Numbers:
PN: 34-00009 Model 406
- No contacts or solder tabs
PN: 34-00013 Model 406
- with female contacts
PN: 34-61152 Model 406
- with female contacts and housing
PN: 30-73258 Model 406
- with solder tabs
Sensor Mechanical Data
Exploded View
Force Sensing Resistor®
FSR® Model 408
Model 408:
Active Area: XXXmm x 10.2mm
Nominal Thickness: 0.41mm
Switch Travel: 0.15mm
Available Part Numbers:
PN: 34-00010 Model 408
- No contacts or solder tabs
PN: 34-75319 Model 408
- with female contacts
PN: 34-23845 Model 408
- with female contacts and housing
PN: 30-61710 Model 408
- with solder tabs
PN: 34-00068 Model 408-50
- 50mm with solder tabs
PN: 34-00069 Model 408-100
- 100mm with solder tabs
PN: 34-00070 Model 408-200
- 200mm with solder tabs
PN: 34-00071 Model 408-300
- 300mm with solder tabs
PN: 34-00072 Model 408-400
- 400mm with solder tabs
PN: 34-00073 Model 408-500
- 500mm with solder tabs
Contact Us
United States Corporate Office
Interlink Electronics, Inc.
31248 Oak Crest Drive
Suite 110
Westlake Village, CA 91361 USA
Phone: +1 (805) 484-8855
Fax: +1 (805) 484-9457
www.interlinkelectronics.com
Sales & Support: sales@iefsr.com
Exploded View
Sensor Mechanical Data
www.interlinkelectronics.com

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