FSR Series
Force Sensing Resistor
The Ohmite FSR series exhibits the unique characteristic of
dynamic resistance related to the amount of applied force.
In general, the more force applied to the surface of the
sensor, the lower the resistance. The resistance change
is inversely proportional to the applied force. Typical
force-sensing resistors are characterized for Human-
Machine Interface (HMI) or Machine-Machine
Interface (MMI) applications with a sensing range
from circa 20g to 5Kg. Specific device character-
istics will depend on the size, shape and materials
used in construction. Force-sensing resistors are
intended for applications where a delta in applied force
is to be detected. They are not intended for high accu-
racy or specific weight measurement applications.
SERIES SPECIFICATIONS
Thickness (inc. Sensor overall Sensor
Series Active area 0.05mm adhesive) width overall length Tail length Tail width
FSR01 39.70 x 39.70mm 0.375mm 43.69 x 43.69mm 83.09mm 39.40mm 7.62mm
FSR02 604.60 x 10.20mm 0.375mm 15.20mm 622.30mm 12.70mm 7.60mm
FSR03 25.42mm 0.425mm 30.50mm 69.00mm 38.00mm 7.62mm
FSR04 5.60mm 0.325mm 7.62mm 15.80mm 9.00mm 6.35mm
FSR05 5.60mm 0.325mm 7.62mm 38.10mm 30.00mm 6.35mm
FSR06 14.70mm 0.375mm 18.00mm 25.00mm 9.00mm 7.62mm
FSR07 14.70mm 0.375mm 18.00mm 56.34mm 38.00mm 7.62mm
ChARACTERISTICS
Characteristic Description FSR01 FSR02 FSR03 FSR04 FSR05 FSR06 FSR07
Actuation force Force to reach 10M, Average of 100 samples < 20g < 20g < 10g <20g <30g <15g <15g
linear region of log/log, Higher forces can be achieved with
Force range All: Up to 5kg
custom sensor and actuation methods
Long term drift 1kg for 48hrs, Per log time < 2% < 1% < 1% < 2% < 2% 1% 1%
Single part repeatability 100 actuations of 1kg, 1 standard deviation/mean All: 2%
Part to part repeatability 100 sensors same batch, 1 standard deviation/mean All: 4%
20C for 250hrs, Avg. change in res. of 5 sensors
Low temp. storage 8% 7% 7% 8% 8% 7% 7%
High temp. storage +85C for 250hrs, Avg. change in res. of 5 sensors 4% 3% 3% 4% 4% 3% 3%
High humidity storage +85C/85%RH for 250hrs, Avg. change in res. of 5 sensors 8% 12% 8% 8% 8% 12% 12%
Lifecycle durability (10M) 1kg force at 3Hz, Avg. change in res. of 4 sensors 17% 12% 3% 7% 7% 3% 3%
Hysteresis 100 actuations of 1kg, Avg. change in res. of 100 samples All: 5%
100 cycles at 0.5kg
Operational temp. range All: 20 to +85C
Note: All values typical, and quoted at 10N applied force unless otherwise stated. Force dependant on actuation interface, mechanics, touch location, and measure-
ment electronics.
FSR01-03 FSR04 FSR05 FSR06 FSR07
Shunt Shunt Shunt Shunt Shunt
Mode
Trace pitch 0.25mm 0.50mm 0.50mm 0.50mm 0.50mm
Spacer height 0.125mm 0.125mm 0.125mm 0.125mm 0.125mm
Trace width 0.25mm 0.25mm 0.25mm 0.25mm 0.25mm
10 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.comFSR Series
Force Sensing Resistor
dImENSIONS
FSR01 FSR02
FSR03 FSR04 FSR05
604.60 x 10.20
39.70 x 39.70
Active area
5.60
Active area 43.69 x 43.69 25.42 5.60
15.20 Active area 7.62 7.62
Active area 30.50 Active area
15.80
6.35 38.10
622.30
FSR07
69.00
14.70
Active area 18.00
6.35
83.09
FSR06
7.60
14.70
Active area 18.00
56.34
7.62
25.00
Interconnect B
7.62 Solder tab
Interconnect C
Female crimp with housing
7.62
7.62
ORdERINg INFORmATION
Terminal type
A = Bare tail
B = Solder tab
C = Connector housing (female, equivalent
to Nicomatic 14106-12 and OF02)
D, E = Assigned sequentially
for custom designs
RoHS
FSR03C X E
Compliant
Series FSR Format Modifier
Force sensing 01 = Std. square for custom
resistor 02 = Std. strip designs (optional)
03 = Std. round
04, 05... = Assigned sequentially for
custom designs
rev 4/19-2
1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com 11