TEMPERATURE RELATIVE HUMIDITY SENSOR HTS2010SMD Based unique capa

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TEMPERATURE RELATIVE HUMIDITY SENSOR HTS2010SMD Based unique capa

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TECHNICAL DATA
TEMPERATURE RELATIVE HUMIDITY SENSOR HTS2010SMD
Based unique capacitive cell humidity measurement Negative Temperature Coefficient (NTC) thermistor temperature measurement, this dual purpose relative humidity temperature miniaturized sensor designed high volume, cost sensitive applications with tight space constraints. useful applications where point, absolute humidity measurements humidity compensation required.
Miniature Surface mount package Compatible with automated assembly processes, including wave soldering, water immersion reflow soldering Full interchangeability with calibration required standard conditions High reliability long term stability
HTS2010SMD
HUMIDITY SENSOR SPECIFIC FEATURES
Instantaneous desaturation after long periods saturation phase Patented solid polymer structure Suitable linear voltage frequency output circuitry Fast response time
TEMPERATURE SENSOR SPECIFIC FEATURES
High quality thermistor Stable High sensitivity
MAXIMUM RATINGS
Ratings Symbol
25°C unless otherwise noted)
Value
Unit
Storage Temperature Supply Voltage humidity cell Humidity Operating Range Temperature Operating Range Maximum Electric Power supplied (continuous) 25°C
Tstg
CHARACTERISTICS
Humidity sensor
Characteristics
25°C, volts, measurement frequency unless otherwise noted)
Symbol
Min.
Typ.
Max.
Unit.
Humidity measuring range Nominal capacitance Averaged Sensitivity from Long term stability Recovery time after hours condensation Response time static,
C/%RH
0.34
pF/%RH %RH/yr
Humirel Sensor Device Data HPC008 April 2001
TECHNICAL DATA
CHARACTERISTICS (CONT)
Humidity sensor
Characteristics
25°C, measurement frequency unless otherwise noted)
Symbol
Min.
Typ.
Max.
Unit.
Temperature coefficient 40°C Humidity Hysteresis Deviation typical curve (see below) Supply voltage Leakage current volts)
*Tighter tolerance available request
0.04 +/-1.5 +/-2
pF/°C
Temperature sensor
Characteristics Symbol Min. Typ. Max. Unit.
Nominal resistance 25°C Beta value B25/100 Temperature measuring range Nominal Resistance Tolerance* value tolerance Response Time
*Tighter tolerance available request
3800
3600
3730
Typical response curve HTS2010SMD humidity
Relative Humidity
Calibration data traceable NIST standards through CETIAT laboratory.
Measurement frequency 25°C Polynomial response
capacitance
standardized 262960 194110 144790 109030 82923 63591 49204 38279 30029 23773 18959 15207 12280 10000 8178 6734 5575 4636 3874 3237 2720 2304 1960 1674 1432 1235 1067 exponential 6670 5500 4550 3800 3180 2690 2270 1940 1650 1430 1230 1070
Typical temperature output
Depending needed temperature measurement range associated accuracy, suggest methods access resistance values.
resistance temperature resistance rated temperature Temperature value, material-specific constant thermistor Base natural logarithm 2,71828)
actual characteristic thermistor can, however, only roughly described exponential relation, material parameter reality also depends temperature. this approach only suitable describing restricted range around rated temperature resistance with sufficient accuracy.
practical applications more precise description real curve required. Either more complicated approaches (e.g Steinhart-Hart equation) used resistance/temperature relation given tabulated from. These standardized curves have been experimentally determined with utmost accuracy they aslo available temperature increments degree.
Humirel Sensor Device Data HPC008 April 2001
52000 40500 31000 24500 19300 15400 12350 10000 8140
TECHNICAL DATA
SUGGESTED EVALUATION CIRCUIT HUMIDITY FREQUENCY
TEMPERATURE ANALOG OUTPUTS
Relative humidity (Frequency output)
This circuit typical Astable design 555. HTS2010 used variable capacitor provides output frequency modulation with relative humidity ranging from 100%. this frequency output circuit configuration (for capacitance measurement), unbalances internal temperature compensation scheme 555. shifts negative initial temperature coefficient positive that matches humidity sensing chip's temperature coefficient 1.4Hz/°C. cases, should resistor with maximum 100ppm temperature coefficient like other timer resistors.
Resistors values
Since internal temperature compensation changes from manufacturer manufacturer, values should adapted device used. TLC555 (Texas) TS555 (STM) 7555 (Harris) LMC555 (National) 909k 100nF capacitor 1732k 1238k frequency 6660Hz 55%RH 576k 523k 549k 562k
Temperature (voltage output)
temperature measurement done voltage divider, must adjusted 25°C temperature measurement.
Polarization
order better reproducibility during measurement, always connect (see package outline page ground circuit.
Soldering instructions
application note
Humirel Sensor Device Data HPC008 April 2001
TECHNICAL DATA
QUALIFICATION PROCESS
HTS2010SMD sensors have been qualified through complete qualification process taking account many requirements STD750 including Solder heat solderability Wave soldering 260°C water clean 45°C Mechanical shock 1500 blows, directions Vibration Variable 2000Hz), fixed 35Hz) Constant acceleration Marking permanency Electrostatic Discharge Human body Machine model Salt Atmosphere STD750/Method 1041/96 hours Temperature Cycling -40°C +70°C High Temperature Humidity Operating Life 60°C 1000 hours humidity storage life 10%/23°C 1000 hours Resistance immersion water ambient temperature 80°C hours Resistance acid vapors 75000 nitric, sulfuric chlorhydric acids Resistance many chemicals linked with home appliances/ automative consumer applications.
PACKAGE OUTLINE HTS2010SMD
GULL WING (JLEAD option also available).
RECOMMENDED FOOTPRINT
dimensions Scale
Dimension
(typical)
2.54 12.8 0-7°
ORDERING INFORMATION (MULTIPLE PACKAGE QUANTITY PIECES). 2010 HUMIDITY ANALOG VOLTAGE OUTPUT MODULE
SAMPLE 2010 AVAILABLE THROUGH HUMIREL SITE www.humirel.com
email sales@humirel.com
information this sheet been carefully reviewed believed accurate however, responsability assumed inaccuracies. Furthermore, this information does convey purchaser semiconductor devices license under patent rights manufacturer. Humirel reserves right make changes without further notice product herein. Humirel makes warranty, representation guarantee regarding suitability product particular purpose, does Humirel assume liability arising application product circuit specifically disclaims liability, including without limitation consequential incidental damages. "Typical" parameters vary different applications. Customer's technical experts must validate operating parameters, including "Typical" each customer application. Humirel does convey license under patent rights rights others. Humirel products designed, intended, authorized components systems intended surgical implant into body, other application intended support sustain life, application which failure Humirel product could create situation where personal injury death occur. Should buyer purchase Humirel products such unintended unauthorized application, Buyer shall indemnify hold Humirel officers, employees, subsidiaries, affiliates distributors harmless against claims, costs, damages expenses, reasonable attomey fees arising directly indirectly, claim personal injury death associated with such unintended unauthorized use, even such claim alleges that Humirel negligent regarding design manufacture part. Humirel registered trademark Humirel.
Humirel Sensor Device Data HPC008 April 2001

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