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Description
The HCH-1000 Series humidity sensor is a capacitive polymer sensor designed for relative humidity measurement. The sensor converts humidity value into capacitance, which can be measured electronically. Polyimide is used as a humidity sensing material because of its inherent IC (Integrated Circuit) processing compatibility, reduced temperature dependence and enhanced resistance against contamination. The HCH-1000 Series is manufactured using semiconductor technology. The sensor consists of a grid top electrode, a polyimide layer, and a bottom electrode. The grid top electrode on the bottom electrode provides enhanced sensitivity when compared to that of a standard structure. A cased version, for dust protection, and an uncased version are available.
Features
Polymer sensing offers enhanced resistance against contamination
Reduced temperature dependence
Semiconductor fabrication technology
Uses glass wafer as substrate
Enhanced sensitivity and accuracy, fast response
Low hysteresis and long-term stability
Potential Applications
Hygrometers, consumer goods
Humidifiers and dehumidifiers
Medical
Automotive
HVAC systems
Weather stations
Product Specifications
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Package Type |
2,54 mm [0.100 in] lead pitch SIP |
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Operating Temperature Range |
-40 ºC to 120 ºC [-40 ºF to 248 ºF] |
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Operating Humidity Range |
0% RH to 100% RH |
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Hysteresis |
±2% RH typ. |
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Normal Capacitance |
330 ±20 pF typ. (at 55% RH) |
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Sensitivity |
0.60 ±0.5 pF/%RH at 10% RH to 95% RH |
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Linearity |
±2% RH typ. |
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Response Time |
15 s at 30% RH to 90% RH |
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Temperature Coefficient |
0.16± 0.01 pF/°C at 5 °C to 70 °C [41 °F to 158 °F] |
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Max. Supply Voltage |
5 Vac (no dc voltage) |
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Max. Supply Current |
20 ㎂ |
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Long-term Stability (Drift) |
0.2% RH/year |
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Output Signal |
Capacitance value |
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Covered Device |
No |
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Moisture/Dust Filter |
No |
Combined Humidity and
Temperature Sensor |
No |
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Calibration and Data Printout |
No |
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Series Name |
HCH-1000 |
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Availability |
Global |
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Courtesy of Honeywell
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