FDT Series Elements with Lead Attachment
FDT Series Rev 1 www.meas-spec.com 05/12/2009
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Piezo Film Technology
Flexible Leads
High Strain Output
Film Thickness Options
Lamination Options
Solderable Connection Pins
FEATURES
• Thin piezo film sensor
• Flexible leads give flat profile to the
sensor
• Dynamic strain sensing with a high
output
• Typical interface to a 1 or 10 MΩ input
impedance
• Output Voltage dependant on Force
applied 10 mV to 100V
APPLICATIONS
• Sensing Direct Contact Force
• Recording Time of an Event
• Counting Number of Impact Events
• Measuring Impact Related Events
• Sensing Vibration using Cantilevered
Beam
• Wakeup Switch
• Motion Detection
The “F” in FDT Series stands for
“‘Flexible Leads.” These are rectangle
elements of Piezo film with silver ink screen
printed electrodes. Rather than making the
lead attachment near the sensor, the Piezo
polymer tail extends from the active sensor
area as flex circuit material with offset
traces. This gives a very flat, flexible lead
with a connector at the end.
The FDT elements are available in a variety
of different sizes and thicknesses. They are
available without a laminate (FDT), with a
laminated (0.005” mylar) on ones side
(FLDT) or with tape release layer adhesive
(FDT with adh) in the sensor area.
FDT Series Elements with Lead Attachment
FDT Series Rev 1 www.meas-spec.com 05/12/2009
2 of 2
dimensions
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does no
t
convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notic
e
to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor doe
s
Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation
consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application b
y
customer’s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
ordering information
North America
Measurement Specialties, Inc.
1000 Lucas Way
Hampton, VA 23666
Sales and Customer Service
Tel: +1-800-745-8008 or
+1-757-766-1500
Fax: +1-757-766-4297
Technical Support
Email: piezo@meas-spec.com
Europe
MEAS Deutschland GmbH
Hauert 13
44227 Dortmund
Germany
Sales and Customer Service
Tel: +49 (0)231 9740 21
Technical Support
Tel: +49 (0)6074 862822
Email: piezoeurope@meas-spec.com
Asia
Measurement Specialties (China), Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District
Shenzhen, China 518107Sales and Customer
Service
Tel: +86 755 3330 5088
Technical Support
Email: piezo@meas-spec.com
DIMENSION in INCHES (mm)
Model Number Part Number Film
thickness
A
Film
B
Electrode
C
Film
D
Electrode
t
(μm)
Cap
(nF)
FDT1-028K 1-1002785-1 28 μm .620
(16)
.485 (12) 9.25
[235]
1.16 (30) 55 1.37
FDT1-052K 2-1002785-1 52 μm .620
(16)
.485 (12) 9.25
[235]
1.16 (30) 85 .740
FLDT1-028K 1-1002786-1 28 μm .620
(16)
.485 (12) 9.25
[235]
1.16 (30) 205 1.37
FLDT1-052K 2-1002786-1 52 μm .620
(16)
.485 (12) 9.25
[235]
1.16 (30) 230 .740
FLDT1-028K
w/adh-F
1001777 28 μm .650
(17)
.485 (12) 5.51
[140]
1.18 (30) 125 1.37
The connector pins on the FDT sensors can be directly soldered to a PCB with a reasonable level of care.
This component cannot withstand high temperatures (>80°C) and therefore soldering of the pins to a PCB
must be done quickly. A heat sink clamped to the interface area between the film and the crimps will take
the heat away from the film. Pre-tin the pins and then quickly solder them to the board. Do not allow the
soldering iron to touch the film and do not use a dwell time of over 5 seconds on the pins. Low temperature
solder can also be used.
