24PC SMT Series (mbar)
Unamplified, uncompensated pressure sensors
FEATURES
· 0...50 mbar to 0...1 bar
gage or differential
· High impedance bridge
· True surface mount miniature package
· Usable for wet/wet applications8
SERVICE
All media compatible with
port 1:
- polyphtalamide
- silver-filled silicone
- silicon nitride
port 2:
- polyphtalamide
- fluor-silicone
- silicon
Scale:
1 cm
1/2 inch
ELECTRICAL CONNECTION
SPECIFICATIONS
Maximum ratings
Supply voltage
Temperature limits
Storage
Operating
Lead temperature (10 sec. soldering)
12 V
-55 to +100°C
-40 to +85°C
Vs
1
260°C
4
Humidity limits
Vibration (0 to 2000 Hz)
(qualification tested)
Mechanical shock (qualification tested)
Proof pressure1
24PC0050DSMT
24PC0100DSMT
24PC0250DSMT
24PC01K0DSMT
June 2005 / 604
0...100 %RH
-
Output
20 g sine
50 g
2
+
3
1.4 bar
1.4 bar
1.4 bar
3.0 bar
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24PC SMT Series (mbar)
Unamplified, uncompensated pressure sensors
PRESSURE SENSOR CHARACTERISTICS
Vs = 10.0 ± 0.01 V, tamb = 20°C (unless otherwise noted)
Part number
Operating pressure
Full-scale span2
Min.
Typ.
Max.
Sensitivity typ.
24PC0050DSMT
0 - 50 mbar
21 mV
33 mV
44 mV
650 µV/mbar
24PC0100DSMT
0 - 100 mbar
43 mV
65 mV
87 mV
650 µV/mbar
24PC0250DSMT
0 - 250 mbar
61 mV
83 mV
105 mV
333 µV/mbar
24PC01K0DSMT
0 - 1000 mbar
159 mV
218 mV
276 mV
220 µV/mbar
COMMON PERFORMANCE CHARACTERISTICS
Vs = 10.0 ± 0.01 V, tamb = 25°C (unless otherwise noted)
Characteristics
Min.
Zero pressure offset
-30
4
Temperature effects (0 - 50°C)
Temperature effects on bridge impedance
±2.0
Span
-2000
4
Max.
Unit
+30
Offset
mV
ppm/°C
+2200
Linearity (P2 > P1, BSL)3
Repeatability and hysteresis
Typ.
±0.25
5
±0.15
Long term stability7
% sp a n
±0.5
Input impedance
4.0
5.0
6.0
Output impedance
4.0
5.0
6.0
Response time6
kΩ
1.0
ms
Specification notes:
1. The maximum specified pressure which may be applied to the sensor without causing a permanent change in the output
characteristics.
2. Span is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure. Span is
ratiometric to the supply voltage.
3. Linearity (BSL), the deviation of measured output at constant temperature (25°C) from "Best Straight Line" determined by three
points, offset pressure, full-scale pressure and half full-scale pressure.
scale - Voffset
[ V½ full scale – { (fullVfullscale
pressure)
x (½ full scale pressure) + Voffset }] : 2 (Vfull scale) x 100 %
where: V = measured value for each device
4. Error band of the offset voltage, span or bridge impedance in the specified temperature range, relative to the 25°C reading.
5. Repeatability, the deviation in output readings for successive application of any given input pressure (all other conditions
remaining constant. Hysteresis, the error defined by the deviation in output signal obtained when a specific pressure point is
approached first with increasing pressure, then with decreasing pressure or vice versa (all other conditions remaining constant).
6. Response time for 0 to full-scale pressure step change, readings taken at 10 % and 90 % of full-scale pressure.
7. Long term stability of offset and span over a period over one year.
8. The sensors might be used on both ports, for media compatible with the components, specified under "Service" (page 1).
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June 2005 / 604
www.sensortechnics.com
24PC SMT Series (mbar)
Unamplified, uncompensated pressure sensors
OUTLINE DRAWING
mass: 0.5 g
June 2005 / 604
dimensions in mm (inches)
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24PC SMT Series (mbar)
Unamplified, uncompensated pressure sensors
SUGGESTED LAND PATTERN
dimensions in mm (inches)
ORDERING INFORMATION
2
24PC series
4
PC
xxxx
D
SMT
SMT package
non compensated
Differential pressure
0050:
0100:
0250:
01K0:
Pressure range
0 - 50 mbar
0 - 100 mbar
0 - 250 mbar
0 - 1000 mbar
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.
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June 2005 / 604
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