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Capacitive Humidity Sensor for HVAC Applications - HC201

  • Capacitive Humidity Sensor for HVAC Applications
  • Capacitive Humidity Sensor for HVAC Applications
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• Nominal capacitance: 200 ± 30 pF
• Sensitivity: 0.6 pF / % RH
• Working Humidity range: 10~95% RH
• Working Temperature range: -40~110°C (-40~230°F)
• Linearity error (20~90% RH): < ± 2% RH
• Hysteresis: 2.0 ± 0.3% RH
• Response time t90: < 15 sec​

  • Model Number: HC201
  • Data Sheet: Date Sheet File
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Product Specification

HC201 Capacitive Humidity Sensor Description
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.

HC201 Capacitive Humidity Sensor Features
• High repeatability
• High sensitivity
• Wettable
• Very good long term stability
• Good resistance to pollutants
• Small size construction

HC201 Capacitive Humidity Sensor Typical Applications
• HVAC
• Hand helds
• Humidifiers
• Dehumidifiers

HC201 Capacitive Humidity Sensor Technical Data

Nominal capacitance C76 (at 20°C / 68°F)
 200 ± 30 pF
Sensitivity
 0.6 pF / % RH
Working range
 Humidity 10...95% RH
Temperature -40...110°C (-40...230°F)
Linearity error (20...90% RH)
 < ± 2% RH
Hysteresis
 2.0 ± 0.3% RH
Response time t90
 < 15 sec
Temperature dependence [%RH /°C]
 ∆RH = g * RH * (T - 20)  g = -0.004 ± 10 %
Long term stability at 20-30°C  (68-86°F) / 20-80% RH
 drift < 1.5 % / year
Loss tangent
 < 0.1 typical
Maximum supply voltage (no DC voltage)
 5 V max (Upp)
Maximum DC voltage
 < 5 mV
Operating frequency
 10...100 kHz, recommended 20 kHz
Material connection
 phosphor bronze with tin coating
Packaging
 HC201: taped
HC201/H: in tube (80 pcs packing unit)
HC201/G: taped

HC201 Capacitive Humidity Sensor Ordering Guide
Mode
 Type
HC201
 capacitive humidity sensor 200 pF
HC201/H
 capacitive humidity sensor 200 pF with PC housing for mounting on the printed ciruit board
HC201/G
 capacitive humidity sensor 200 pF with PC housing

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