HTS2030SMD Temperature and Relative Humidity Sensor DESCRIPTION Based on a unique capacitive cell for humidity measurement and a Negative Temperature Coefficient (NTC) thermistor for temperature measurement, this dual purpose relative humidity / temperature miniaturized sensor is designed for high volume, cost sensitive applications with tight space constraints. It is useful in all applications where dew point, absolute humidity measurements or humidity compensation are required. FEATURES maximum ratings Miniature Surface Mount SMD Package Ratings Symbol Value Unit Ta -60 to 140 °C Storage Temperature Tstg -60 to 140 °C Supply Voltage (Peak) Vs 10 Vac Humidity Operating Range RH 0 to 100 % RH Operating Temperature Lead Free Components Full Interchangeability with no calibration required in standard conditions Instantaneous desaturation after long periods in saturation phase Compatible with automatized assembly processes, including Pb free wave soldering and reflow processes (1) Operating Range 100 90 80 High Reliability and Long Term Stability Relative Humidity in % RH 70 Patented Solid Polymer Structure Suitable for linear voltage or frequency output circuitry 60 50 40 30 20 Fast response time and very low temperature coefficient 10 0 -60 -40 -20 0 20 40 60 80 100 Temperature in °C Part may be washed with distilled water Individual marking for compliance to stringent traceability requirements (1) Soldering temperature profiels available upon request/contact us at [email protected] Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 USA -1- www.meas-spec.com 757-766-1500 800-745-8008 Fax 757-766-4297 120 140 160 HTS2030SMD Temperature and Relative Humidity Sensor C h a r a c t e r i s t i c s ( Ta = 2 5 º C , m e a s u re m e n t f re q u e n c y @ 1 0 k H z u n l e s s o t h e r w i s e s t a t e d ) Characteristics Symbol Min Humidity metrology range RH 1 Voltage supply Vs Nominal capacitance @ 55% RH C Temperature coefficient Typ 177 180 Tcc Unit 99 % RH 10 V 183 pF 0.01 C /% RH Averaged Sensitivity from 33% to 75% RH Max pF/°C 0.31 Leakage current (Vcc=5 Volts) I Recovery time after 150 hours of condensation tr 10 t +/-0.5 pf/% RH 1 nA s Humidity Hysteresis +/-1 Long term stability τα Time constant (33 to 80% RH, still air, @ 63%) 3 Deviation to typical response curve (10% to 90%) RH) % RH % RH/yr 5 s +/-2 % RH Ty p i c a l R e s p o n s e i n H u m i d i t y Capacitance (pF) 195 190 185 180 175 170 165 160 0 10 20 30 40 50 60 70 80 90 100 %RH Polynomial response of HTS2030SMD: C (pF)=C@55 %*( 3.903 10-8 *RH3-8.294 10-6 *RH2+2.188 10-3 *RH+0.898) Reversed Polynomial response of HTS2030SMD: RH (%) = -3.4656 10+3 *X3+1.0732 10-4 *X2-1.0457 10+4 *X+3.2459 10+3 With X=C(read) / C@55%RH Ty p i c a l re s p o n s e l o o k - u p t a b l e ( P o l y n o m i a l R e f e re n c e c u r v e ) 1 0 k H z / 1 V RH (%) 0 5 10 15 20 25 30 35 40 45 50 Cp (pF) 161.6 163.6 165.4 167.2 169.0 170.7 172.3 173.9 175.5 177.0 178.5 RH (%) 55 60 65 70 75 80 85 90 95 100 Cp (pF) 180 181.4 182.9 184.3 185.7 187.2 188.6 190.1 191.6 193.1 Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 USA -2- www.meas-spec.com 757-766-1500 800-745-8008 Fax 757-766-4297 HTS2030SMD Temperature and Relative Humidity Sensor C h a r a c t e r i s t i c s Te m p e r a t u re s e n s o r ( Ta = 2 5 ° C ) Characteristics Symbol Min Typ B 3600 3730 Temperature measuring range Ta - 60 Nominal Resistance Tolerance at 25°C Rn B value tolerance B 3 % Response Time τ 10 s Nominal resistance @ 25°C Max 10 Beta value : B25/100 Unit kS 3800 2 140 °C 3 % Ty p i c a l t e m p e r a t u re o u t p u t Depending on the needed temperature measurement range and associated accuracy, we suggest two methods to access to the NTC resistance values. The actual characteristic of an NTC thermistor can, however, only be roughly described by the exponential relation,as the material parame ter B in reality also depends on temperature. So this approach is only suitable for describing a restricted range around the rated temperature or resistance with sufficient accuracy. NTC resistance in Sat temperature T in K NTC resistance in Sat rated temperature in K Temperature in K B value,material-specific constant of the NTC thermistor Base of natural logarithm (e =2.71828) Measurement Specialties, Inc. For practical applications a more precise description of the real R/T curve may be required. Either more complicated approaches (e.g the Steinhart-Hart equation) are used or the resistance/ temperature relation as given in tabulated form. The below table has been experimentally determined with utmost accuracy for temperature increments of 1 degree. 1000 Lucas Way Hampton, VA 23666 USA -3- www.meas-spec.com 757-766-1500 800-745-8008 Fax 757-766-4297 HTS2030SMD Temperature and Relative Humidity Sensor Temperature Resistance Max. °C (ohm) Deviation Temperature Resistance Max. °C (ohm) Deviation -40 -39 -38 -37 -36 -35 -34 -33 -32 -31 -30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 262960 247217 232539 218845 206064 194110 182852 172332 162498 153299 144790 136664 129054 121925 115243 109030 103115 97565 92354 87460 82923 78581 74497 70655 67039 63591 60381 57356 54503 51813 49204 46767 44467 42296 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 35403 32777 30358 28130 26075 24178 22416 20791 19290 17905 16636 15444 14343 13325 12383 11516 10705 9953 9257 8612 8020 7463 6947 6468 6023 5606 5222 4865 4533 4225 3932 3662 3411 3177 40247 38279 36455 34731 33100 31557 30029 28627 27299 26042 24852 23773 22708 21698 20739 19829 18959 18128 17338 16588 15876 15207 14569 13962 13384 12834 12280 11777 11297 10840 10404 10000 9600 9218 Temperature Resistance Max. °C (ohm) Deviation 2960 2756 2568 2393 2230 2078 1932 1799 1675 1560 1452 1355 1261 1174 1093 1017 946 879 817 759 705 654 607 563 522 484 447 413 382 353 325 300 300 300 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 8853 8506 8178 7866 7568 7283 7011 6734 6484 6244 6015 5796 5575 5373 5180 4995 4817 4636 4473 4316 4166 4021 3874 3737 3606 3481 3360 3237 3126 3019 2917 2819 2720 2629 Temperature Resistance Max. °C (ohm) Deviation 299 297 296 294 292 290 287 284 281 278 275 271 267 264 260 257 253 248 245 241 237 233 229 225 221 217 213 208 204 200 197 193 189 185 62 63 64 65 66 67 68 69 70 71 72 73 74 75 77 79 81 83 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 2542 2458 2378 2304 2229 2158 2089 2022 1960 1898 1839 1782 1727 1673 1573 1480 1390 1310 1235 1199 1163 1130 1097 1067 1038 1009 982 955 927 901 877 853 830 S u g g e s t e d F re q u e n c y O u t p u t C i rc u i t s Note: R22=499kS / R4=49.9S? / R1=1 kS / RV1=50 kS potentiometer / C1=10nF / C2=2.2nF / C3=100nF Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 USA -4- www.meas-spec.com 757-766-1500 800-745-8008 Fax 757-766-4297 182 178 175 171 168 165 161 158 155 152 149 146 143 140 135 130 124 119 115 112 110 108 106 104 102 100 98 96 94 92 90 89 87 HTS2030SMD Temperature and Relative Humidity Sensor Ty p i c a l re s p o n s e l o o k - u p t a b l e ( H u m i d i t y O u t p u t ) RH (%) 0 5 Fout (Hz) RH (%) Fout (Hz) 10 15 20 25 30 35 40 45 50 7155 7080 7010 6945 6880 6820 6760 6705 6650 100 55 60 65 70 75 80 85 90 95 6600 6550 6500 6450 6400 6355 6305 6260 6210 Q u a l i f i c a t i o n P ro c e s s HTS2030SMD sensors have been qualified through a complete qualification process taking in account many of the requirements of the JEDEC standard including: • • • • • • • • • • • • • Solder heat and solderability including lead free process. Pb free wave soldering and reflow soldering process(260°C) + DI water clean at 45°C Mechanical shock JESD-22-B104-A Vibration - Variable frequency(20 to 2000Hz) JESD-22-B103-A Marking permanency ESD - Electrostatic Discharge –Air Gun +-15kV(IEC 1000) Salt Atmosphere JESD22-A107-A Temperature Cycling - 40°C / +125°C High Temperature / Humidity Operating Life - 93%RH / 60°C for 1000 hours Low Humidity storage life - RH < 10%/23°C - 1000 hours Resistance to immersion in water at ambient temperature and 80°C High temperature storage 140°C for 168 hours. Resistance to many chemicals linked to home appliances/automotive or consumer applications. ENVIRONMENTAL AND RECYCLING HTS2030SMD sensors are lead free components and are compatible with Pb Free soldering processes. HTS2030SMD sensors are free from Cr (6+), Cd and Hg. Package Outline HTS2030SMD Dim A B C D E F G H L Min 6 10 2.7 0.8 2.54 12.8 0-7° 0.2 0.1 A B C Carrier Carrier Reel Reel Diameter 360 mm Tape Carrier Tape Tape Pitch Depth 30.4 mm 24 mm 4 mm 4 mm Width Dimensions in millimeters O rd e r i n g I n f o r m a t i o n : H T S 2 0 3 0 S M D •HPP804B130: TUBE M.P.Q. OF 78 PIECES. •HPP804B131: TAPE AND REEL M.P.Q. OF 1500 PIECES. TEMPERATURE AND RELATIVE HUMIDITY SENSORS. Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 USA -5- www.meas-spec.com 757-766-1500 800-745-8008 Fax 757-766-4297 HTS2030MD-0307