HS1101 Datasheet, PDF (1/4 Pages) Humirel – RELATIVE HUMIDITY SENSOR

1 TECHNICAL DATA
RELATIVE HUMIDITY SENSOR
HS 1100 / HS 1101
Based on a unique capacitive cell, these relative humidity sensors are designed for high
1
volume, cost sensitive applications such as office automation, automotive cabin
air control, home appliances, and industrial process control systems. They are
also useful in all applications where humidity compensation is needed.
2
FEATURES
● Full interchangeability with no calibration required in standard conditions
● Instantaneous desaturation after long periods in saturation phase
● Compatible with automatized assembly processes, including wave soldering,
reflow and water immersion (1)
● High reliability and long term stability
● Patented solid polymer structure
● Suitable for linear voltage or frequency output circuitry
● Fast response time
● Individual marking for compliance to stringent traceability requirements
(1) soldering temperature profiles available on request
MAXIMUM RATINGS (Ta= 25°C unless otherwise noted)
HS 1100
Top opening
HS 1101
Side opening
Ratings
Symbol
Value
Unit
Operating Temperature
Ta
-40 to 100
°C
100
Storage Temperature
Tstg
-40 to 125
°C
75
Supply Voltage
Vs
10
Vac
Humidity Operating Range RH
0 to 100
% RH
50
Soldering @ T = 260°C
t
10
s
25
OPERATING RANGE
0
-40
CHARACTERISTICS
(Ta = 25°C, measurement frequency @ 10kHz unless otherwise noted)
Characteristics
Symbol
Humidity measuring range
Supply voltage
Nominal capacitance @ 55% RH*
Temperature coefficient
Averaged Sensitivity from 33% to 75% RH
Leakage current (Vcc = 5 Volts)
Recovery time after 150 hours of condensation
Humidity Hysteresis
Long term stability
Response time (33 to 76 % RH, still air @ 63%)
Deviation to typical response curve (10% to 90% RH)
RH
Vs
C
Tcc
∆C/%RH
Ix
tr
ta
-20
0
20
40
60
80
100
TEMPERATURE IN °C
Min.
Typ.
Max.
Unit.
1
99
%
5
10
V
177
180
183
pF
0.04
pF/°C
0.34
pF/%RH
1
nA
10
s
+/-1.5
%
0.5
%RH/yr
5
s
+/-2
% RH
* Tighter specification available on request
HPC001 Rev. 7 June 2002