Humidity Sensor Units Unit type CHS series Type: CHS-U (For industrial use and measuring equipment) CHS-SS(For consumer and office equipment) CHS-C(For consumer and office equipment) Issue date: January 2010 All specifications are subject to change without notice. Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.(1/6) Humidity Sensor Units CHS Series CHS-U, -SS, -C Types TDKs CHS series humidity sensors are compact and extremely simple to apply. Because they contain the necessary circuitry, there is no need to provide additional control circuitry or perform time-consuming calibration. With simple connection to a power supply, they will output DC at 100% relative humidity. This makes it possible to read RH directly with a voltmeter. CHS-U TYPE For industrial use and measuring equipment Characteristics are stable over a wide temperature range. FEATURES Humidity sensing characteristics exhibit virtually no hysteresis. These sensors can measure a wide range of humidity from Highly cost-effective and compact, requiring extremely little 5(%) to 95(%)RH. mounting space. They are highly accurate. The nominal accuracy for the CHS- Low current consumption. UPR and CHR-UPS is within 3(%) RH. Outputs DC.1V at 100(%)RH relative humidity can be read CHS-UGS CHS-UPS directly with a voltmeter. Type CHS-UGR CHS-UPR All-in-one construction integrates sensor with support circuitry. Nominal accuracy(%)RH 5 3 The entire module operates off a 5V power supply. Measuring range(%)RH 5 to 95 5 to 95 Generated ripple at low humidity levels will not exceed 2.5mV. SHAPES AND DIMENSIONS SQUARE TYPE ROUND TYPE CHS-UGS, -UPS CHS-UGR, -UPR 20max. 11.5max. 6.5max. Sensible Sensible side side Sensible side Label 0.49 Label 0.49 12 3 5 5 Pin No. 1 Analog output voltage Pin No. 2 GND Pin No. 1 Analog output voltage Pin No. 3 +Power supply voltage Pin No. 2 GND Label Pin No. 3 +Power supply voltage 1 3 2.5 2.5 Weight: 1.38g typ. 2 MAXIMUM RATINGS (Ta=25C) When installing the device, ensure that the humidity Power supply voltage Edc 7V max. sensing surface is not obstructed. Weight: 1.68g typ. 0 to +50C, power supply voltage 5V, without Operating conditions dewing Dimensions in mm Storage conditions 20 to +60C, without dewing Tolerance: 0.2 All specifications are subject to change without notice. 002-01 / 20100120 / eb111 chs.fm ( ) 3.8 5.70.5 27max. 5 50.5 9max.