238169190001 Datasheet, PDF (1/2 Pages) Vishay Siliconix – Humidity Sensor

2381 691 90001/HUMIDITY-SENS-E
Vishay BCcomponents
Humidity Sensor
QUICK REFERENCE DATA
PARAMETER
VALUE
UNIT
Humidity range (RH)
10 to 90
%
Capacitance at + 25 °C; 43 % RH;
100 kHz
122 ± 15 %
pF
Tan δ at + 25 °C; 100 kHz; 43 % RH ≤ 0.035
Sensitivity between 12 %
and 75 % RH
0.4 ± 0.05 pF/%RH
Frequency
1 to 1000
kHz
Temperature dependence
+ 0.1
%RH/K
Response time in minutes
(to 90 % of indicated RH change at
+ 25 °C, in circulating air):
Between 10 % and 43 % RH
<3
Between 43 % and 90 % RH
<5
Hysteresis (for RH excursion
of 10 % to 90 % to 10 %)
≈3
%
Maximum AC or DC voltage
15
V
Storage humidity range (RH)
0 to 100
%
Ambient temperature range:
Operating
0 to + 85
°C
Storage
- 25 to + 85
°C
Weight
≈ 1.3
g
Note
Unless otherwise stated, measurements are in accordance with
“IEC publication 60539”
Component is 100 % lead (Pb)-free
Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC
Stability is in accordance with “CECC 43000” and “IEC 60068-2”
DIMENSIONS in millimeters
15.5 ± 0.5
APPLICATIONS
• Humidity measurements in electronic
hygrometers for domestic use
• Self-regulating air humidifiers, etc.
DESCRIPTION
This capacitive atmospheric humidity sensor consists of a
non-conductive foil, which is covered on both sides with a
layer of gold. The dielectric constant of the foil changes as a
function of the relative humidity of the ambient atmosphere
and, accordingly, the capacitance value of the sensor is a
measure for relative humidity. The foil is clamped between
contact springs and assembled in a plastic housing. It is
provided with two connecting pins which fit printed-circuit
boards with a grid pitch of 2.54 mm, provision is also made
for fastening with 3 mm bolts. The characteristics are not
affected by incidental water condensation on the sensor foil.
It should not be exposed to either acetone or chlorine
vapours.
MOUNTING
The device can be soldered directly on to a printed-circuit
board or fastened with 3 mm bolts.
SOLDERING
Solderability: ≤ 240 °C; ≤ 4 s
Resistance to heat: ≤ 240 °C; ≤ 4 s
ROBUSTNESS OF TERMINATIONS
Tensile strength: 10 N
ELECTRICAL CHARACTERISTICS
150
C
(pF)
140
MEA832
23.0
± 0.5
3
1.15 max
5.08
3.1 ± 0.1
3°
2.9 ± 0.2
17.0 11.5
± 0.5 ± 0.5
5.0 ± 0.5
Component outline
130
120
110
0
50
RH (%)
100
Typical capacitance as a function of relative humidity
www.vishay.com
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For technical questions, contact: [e-mail]
Document Number: 29001
Revision: 24-Jun-09