HC201 is the ideal solution for large volume cost-effective applications in indoor climate control.
For the range of 20...90% RH, linear approximation is possible, errors will be lower than ± 2% RH.
The version with plastic housing, HC201/H is available for easy manual mounting on PCBs.
200 ± 30 pFNominal capacitance C76 (at 20°C)
0,6 pF / % RHSensitivity
10...95 % RHWorking range humidity
-40...110 °CWorking range temperature
< ± 2 % RHLinearity error (20...90% RH)
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HC201 Datasheet(300.34 kb)
Pre-adjusted, capacitive humidity sensor
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What is the difference between a 2 wire and a 3 wire current output?
Transmitter with "two-wires" technology receive the power from the process, and the signal is carry on return wire (closed current loop). With technology "three-wires" the power supply is separate from current output: 2 wires are the power supply and third carry the signal.