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 QUICK REFERENCE DATA PARAMETER Humidity range (RH) Capacitance at + 25 C; 43 % RH; 100 kHz Tan at + 25 C; 100 kHz; 43 % RH Sensitivity between 12 % and 75 % RH Frequency Temperature dependence Response time in minutes (to 90 % of indicated RH change at + 25 C, in circulating air): Between 10 % and 43 % RH Between 43 % and 90 % RH Hysteresis (for RH excursion of 10 % to 90 % to 10 %) Maximum AC or DC voltage Storage humidity range (RH) Ambient temperature range: Operating Storage Weight VALUE 10 to 90 UNIT % 122 15 % pF 0.035 0.4 0.05 pF/%RH 1 to 1000 + 0.1 kHz %RH/K <3 <5 This capacitive atmospheric humidity sensor consists of a non-conductive foil, which is covered on both sides with a layer of gold. The dielectric constant of the foil changes as a function of the relative humidity of the ambient atmosphere and, accordingly, the capacitance value of the sensor is a measure for relative humidity. The foil is clamped between contact springs and assembled in a plastic housing. It is provided with two connecting pins which fit printed-circuit boards with a grid pitch of 2.54 mm, provision is also made for fastening with 3 mm bolts. The characteristics are not affected by incidental water condensation on the sensor foil. It should not be exposed to either acetone or chlorine vapours. MOUNTING 3 % 15 0 to 100 V % 0 to + 85 - 25 to + 85 1.3 C C g Note Unless otherwise stated, measurements are in accordance with "IEC publication 60539" Component is 100 % lead (Pb)-free Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC Stability is in accordance with "CECC 43000" and "IEC 60068-2" The device can be soldered directly on to a printed-circuit board or fastened with 3 mm bolts. SOLDERING Solderability: 240 C; 4 s Resistance to heat: 240 C; 4 s ROBUSTNESS OF TERMINATIONS Tensile strength: 10 N ELECTRICAL CHARACTERISTICS MEA832 150 C (pF) DIMENSIONS in millimeters 15.5 0.5 140 130 23.0 0.5 3 2.9 0.2 120 3 1.15 max 5.08 110 3.1 0.1 17.0 11.5 0.5 0.5 0 50 RH (%) 100 Typical capacitance as a function of relative humidity 5.0 0.5 Component outline www.vishay.com 62 For technical questions, contact: nlr@vishay.com Document Number: 29001 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. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. 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