HS1101 Relative humidity sensor 
DataSheet
Based on a unique capacitive cell, these relative humidity sensors are designed for high 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.
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)
| Ratings |
Symbol |
Value |
Unit |
| Operating Temperature |
Ta |
-40 to 100 |
°C |
| Storage Temperature |
Tstg |
-40 to 125 |
°C |
| Supply Voltage |
Vs |
10 |
Vac |
| Humidity Operating Range |
RH |
0 to 100 |
% RH |
| Soldering @ T = 260°C |
t |
10 |
s |
|
 |
CHARACTERISTICS
(Ta = 25°C, measurement frequency @ 10kHz unless otherwise noted)
Characteristics
|
Symbol |
Min.
|
Typ. |
Max. |
Unit. |
| Humidity measuring range |
RH |
1 |
|
99 |
% |
| Supply voltage |
Vs |
|
5 |
10 |
V |
| Nominal capacitance @ 55% RH* |
C |
177 |
180 |
183 |
pF |
| Temperature coefficient |
Tcc |
|
0.04 |
|
pF/°C |
| Averaged Sensitivity from 33% to 75% RH |
ΔC/%RH |
|
0.34 |
|
pF/%RH |
| Leakage current (Vcc = 5 Volts) |
Ix |
|
1 |
|
nA |
| Recovery time after 150 hours of condensation |
tr |
|
10 |
|
s |
| Humidity Hysteresis |
|
|
+/-1.5 |
|
% |
| Long term stability |
|
|
0.5 |
|
%RH/yr |
| Response time (33 to 76 % RH, still air @ 63%) |
Ta |
|
5 |
|
s |
| Deviation to typical response curve (10% to 90% RH) |
|
|
+/-2 |
|
% RH |
| * Tighter specification available on request |