2381 691 90001/HUMIDITY-SENS-E Vishay BCcomponents Humidity Sensor APPLICATIONS Humidity measurements in electronic hygrometers for domestic use Self-regulating air humidifiers, etc. DESCRIPTION This capacitive atmospheric humidity sensor consists of a QUICK REFERENCE DATA non-conductive foil, which is covered on both sides with a PARAMETER VALUE UNIT layer of gold. The dielectric constant of the foil changes as a Humidity range (RH) 10 to 90 % function of the relative humidity of the ambient atmosphere Capacitance at + 25 C 43 % RH and, accordingly, the capacitance value of the sensor is a 122 15 % pF 100 kHz measure for relative humidity. The foil is clamped between Tan at + 25 C 100 kHz 43 % RH 0.035 contact springs and assembled in a plastic housing. It is Sensitivity between 12 % provided with two connecting pins which fit printed-circuit 0.4 0.05 pF/%RH and 75 % RH boards with a grid pitch of 2.54 mm, provision is also made Frequency 1to1000kHz for fastening with 3 mm bolts. The characteristics are not Temperature dependence + 0.1 %RH/K affected by incidental water condensation on the sensor foil. Response time in minutes It should not be exposed to either acetone or chlorine (to 90 % of indicated RH change at vapours. + 25 C, in circulating air): Between 10 % and 43 % RH < 3 MOUNTING Between 43 % and 90 % RH < 5 The device can be soldered directly on to a printed-circuit Hysteresis (for RH excursion 3% board or fastened with 3 mm bolts. of 10 % to 90 % to 10 %) Maximum AC or DC voltage 15 V SOLDERING Storage humidity range (RH) 0 to 100 % Solderability: 240 C 4s Ambient temperature range: Operating 0 to + 85 C Resistance to heat: 240 C 4s Storage - 25 to + 85 C Weight 1.3 g ROBUSTNESS OF TERMINATIONS Note Tensile strength: 10 N Unless otherwise stated, measurements are in accordance with IEC publication 60539 ELECTRICAL CHARACTERISTICS Component is 100 % lead (Pb)-free Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC MEA832 Stability is in accordance with CECC 43000 and IEC 60068-2 150 C DIMENSIONS in millimeters (pF) 15.5 0.5 140 130 23.0 3 0.5 2.9 0.2 3 120 1.15 max 5.08 110 3.1 0.1 0 50 100 RH (%) Typical capacitance as a function of relative humidity 17.0 11.5 5.0 0.5 0.5 0.5 Component outline www.vishay.com For technical questions, contact: nlr vishay.com Document Number: 29001 62 Revision: 24-Jun-09 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. 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