SHS-A4 Dew Point Sensor
DESCRIPTION
The humidity sensor SHS-A4 is a resistive dew formation sensor with miniaturized dimensions for detecting the onset of condensation. The exponentially rising resistive characteristics in the upper humidity region facilitates simple signal processing and a stable switching behavior on dew formation threshold.
The ceramic substrate can become a thermal contact on the reverse side to sense surface humidity. Through SIL-contacts, the component can be directly mounted on the printed circuit board.
Other models, for example, with connection leads and plugs are also available on request.
FEATURES
- Detection of high humidity, dew formation or condensation
- Application range from 0-100% rH, 0-60°C
- Model with SIL-contacts for PC board mounting
TECHNICAL FEATURES
| Parameter | Value |
|---|---|
| Measuring Principle: | resistive humidity sensor |
| Humidity Range: | 0-100% relative humidity |
| Temperature Range: | 0 to 60°C |
| Impedance at rH<75%: | <20 kOhm |
| Impedance at rH<93%: | <100 kOhm |
| Impedance at rH<97%: | >150 kOHM |
| max. evaluation voltage: | <0.8 Vpp ˜/= |
| Base substrate size: | Ceramic 6.2 X 7.2 X 0.6 mm |
| Connection: | 2 SIL-contacts RM 2.54 mm X 20 mm |
APPLICATIONS
- Building instrumentation, cool ceiling controller, air-conditioning
- Moisture protection in outside directed walls
- Ventilation control in rooms where humidity condensation is important
- Leakage monitor for waterproof housings
- Brown goods, (i.e. camcorder and cameras)
DATA SHEETS
- Data Sheet: SHSA4_DBE.pdf
- Dew Point Overview: Dew-Formation-Sensor-Overview.pdf
APPLICATION NOTES
- Developing Innovative Humidity Sensors: Innovative-Humidity-Sensor-White-Paper.pdf