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Capacitive Humidity Sensor for HVAC Applications - HC201

? 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:

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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