0-1004308-0 Measurement Specialties Inc/Schaevitz, 0-1004308-0 Datasheet - Page 6

• Manufacturer Part Number: 0-1004308-0
• Description: SENSOR PIEZO FILM DESIGN KIT
• Manufacturer: Measurement Specialties Inc/Schaevitz

Specifications of 0-1004308-0

• Rohs Status: RoHS non-compliant
• Sensor Type: Vibration, Piezo Film
• Interface: Analog
• Embedded: No
• Utilized Ic / Part: Accelerometer, Smart Switch, Speaker & Vibration Piezo Film Sensors
• Voltage - Supply: -
• Sensitivity: -
• Sensing Range: -
• Other names: MSP1010

LDT Series Elements with Lead
Attachment and Lamination
The ‘L’ in LDT stands for ‘laminated’ sensor. Typically, a 0.005" (125 µm)
polyester layer is laminated to a 28 µm or 52 µm piezo film element. When used in a
‘bending’ mode, laminated film elements develop much higher voltage output when
flexed than non-laminated (i.e., DT series) elements. The piezo film is off the neutral
axis in the laminate, and is strained more when flexed. Applications for this include
beam-type vibration sensors for vehicle alarms and solid state switches for counters and
momentary contact closure type switches. Piezo film sensor LDT elements are available in a variety
of lead attachment options. The LDT0-028K has crimped-on pins, 0.200" on center, suitable for
soldering. For significantly increased sensitivity, the LDTM-028K (M-Mass) combines an LDT0-028K form factor with the addition of a .72 gram
round mass (located E (.14") from the edge on the opposite side of the crimps in the center of the A (.26") dimension.) The LDT1, 2 and 4 have
12" of 26 gauge twisted pair wire. The capacitance is proportional to the area and inversely proportional to the thickness of the element.
The LDT0-028K and LDTM-028K with solder tabs can be soldered directly to a PCB with a reasonable level of care. Piezo film cannot
withstand high temperatures (> 80?C), and therefore soldering of the pins to a PCB must be done quickly. A heatsink clamped to the interface
area between the film and the crimps will take the heat away from the film. Pre-tin the PCB and then quickly solder the sensor 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 solders can also be
used. For tightly toleranced sensitivity requirements, please consult MSI Sensors for techniques used to control variations of boundary conditions
in production. Detailed specification sheets are available from our website.
LDT0-028K/L w/crimps
LDT1-028K/L w/rivets
LDT2-028K/L w/rivets
LDT4-028K/L w/rivets
LDTM-028K w/crimps
Description
LDT Series with rivets and wire leads
.520 [13]
.640 [16]
.640 [16]
.860 [22]
.520 [13]
Film
A
Electrode
.400 [10]
.484 [12]
.484 [12]
.740 [19]
.400 [10]
Dimensions in INCHES [mm]
Measurement Specialties, Inc.
P.O. Box 799, Valley Forge, PA 19482
Tel: [phone] FAX [phone]
B
e-mail: [e-mail]
Internet: www.msiusa.com
6.72 [171]
.980 [25]
1.63 [41]
2.86 [73]
.980 [25]
Film
C
Electrode
6.13 [156]
.580 [15]
1.19 [30]
2.42 [62]
.580 [15]
D
LDT0-028K (with crimped-on solder tabs)
(µm)
205
205
205
205
205
t
(nF)
Cap
.500
1.38
2.78
11.0
.420
15 MAY 01
Page 6 of 27
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Part #
LDTM
Volume
(US $)
Price
Low
$2.50
$4.50
$7.50
$1.00
$.75