HIH-4030/31 Series Humidity Sensors DESCRIPTION The HIH-4030/4031 Series delivers instrumentation-quality RH Honeywell has expanded our HIH Series to include an SMD (Relative Humidity) sensing performance in a competitively (Surface Mount Device) product line: the new HIH 4030/4031. priced, solderable SMD. The HIH 4030/4031 complements our existing line of non-SMD humidity sensors. SMD packaging on tape and reel allows for The HIH-4030 is a covered integrated circuit humidity sensor. use in high volume, automated pick and place manufacturing, The HIH-4031 is a covered, condensation-resistant, integrated eliminating lead misalignment to printed circuit board through- circuit humidity sensor that is factory-fitted with a hydrophobic hole. filter allowing it to be used in condensing environments including industrial, medical and commercial applications. The HIH-4030/4031 Series Humidity Sensors are designed specifically for high volume OEM (Original Equipment The RH sensor uses a laser trimmed, thermoset polymer Manufacturer) users. capacitive sensing element with on-chip integrated signal conditioning. Direct input to a controller or other device is made possible by this sensor’s near linear voltage output. With a typical current The sensing element's multilayer construction provides draw of only 200 μA, the HIH-4030/4031 Series is often ideally excellent resistance to most application hazards such as suited for low drain, battery operated systems. condensation, dust, dirt, oils and common environmental chemicals. Tight sensor interchangeability reduces or eliminates OEM production calibration costs. Individual sensor calibration data Sample packs are available. See order guide. is available. FEATURES POTENTIAL APPLICATIONS • Tape and reel packaging allows for use in high volume pick • Refrigeration equipment and place manufacturing (1,000 units per tape and reel) • HVAC (Heating, Ventilation and Air Conditioning) • Molded thermoset plastic housing equipment • Near linear voltage output vs %RH • Medical equipment • Laser trimmed interchangeability • Drying • Low power design • Metrology • Enhanced accuracy • Battery-powered systems • Fast response time • OEM assemblies • Stable, low drift performance • Chemically resistant

HIH-4030/31 Series TABLE 1. PERFORMANCE SPECIFICATIONS (At 5 Vdc supply and 25 ºC [77 ºF] unless otherwise noted.) Parameter Minimum Typical Maximum Unit Specific Note Interchangeability (first order curve) – – – – – 0% RH to 59% RH -5 – 5 % RH – 60% RH to 100% RH -8 – 8 % RH – Accuracy (best fit straight line) -3.5 – +3.5 % RH 1 Hysterisis – 3 – % RH – Repeatability – ±0.5 – % RH – Settling time – – 70 ms – Response time (1/e in slow moving air) – 5 – s – Stability (at 50% RH in a year) – ±1.2 – % RH 2 Stability (at 50% RH in a year) – ±0.5 – % RH 3 Voltage supply 4 – 5.8 Vdc 4 Current supply – 200 500 μA – Voltage output (1st order curve fit) V =(V )(0.0062(sensor RH) + 0.16), typical at 25 ºC OUT SUPPLY Temperature compensation True RH = (Sensor RH)/(1.0546 – 0.00216T), T in ºC Output voltage temp. coefficient at 50% RH, 5 V – -4 – mV/ºC – Operating temperature -40[-40] See Figure 1. 85[185] ºC[ºF] – Operating humidity (HIH-4030) 0 See Figure 1. 100 % RH 5 Operating humidity (HIH-4031) 0 See Figure 1. 100 % RH – Storage temperature -50[-58] – 125[257] ºC[ºF] – Storage humidity See Figure 2. % RH 5 Specific Notes: General Notes: 1. Can only be achieved with the supplied slope and offset. For • Sensor is ratiometric to supply voltage. HIH-4030/31-003 catalog listings only. • Extended exposure to >90% RH causes a reversible 2. Includes testing outside of recommended operating zone. shift of 3% RH. 3. Includes testing for recommended operating zone only. • Sensor is light sensitive. For best performance, shield 4. Device is calibrated at 5 Vdc and 25 ºC. sensor from bright light. 5. Non-condensing environment. When liquid water falls on the humidity sensor die, output goes to a low rail condition indicating no humidity. FACTORY CALIBRATION DATA HIH-4030/31 Sensors may be ordered with a calibration and data printout. See Table 2 and the order guide on the back page. TABLE 2. EXAMPLE DATA PRINTOUT Model HIH-4030-003 Channel 92 Wafer 030996M MRP 337313 Calculated values at 5 V V at 0% RH 0.958 V OUT V at 75.3% RH 3.268 V OUT Linear output for 3.5% RH accuracy at 25 °C Zero offset 0.958 V Slope 30.680 mV/%RH Sensor RH (V - zero offset)/slope OUT (V - 0.958)/0.0307 OUT Ratiometric response for 0% RH to 100% RH V V (0.1915 to 0.8130) OUT SUPPLY 2 www.honeywell.com/sensing

Humidity Sensors FIGURE 1. OPERATING ENVIRONMENT (Non-condensing environment for HIH-4030 catalog listings only.) FIGURE 2. STORAGE ENVIRONMENT (Non-condensing environment for HIH-4030 catalog listings only.) 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% -40 -20 0 20 40 60 80 100 120 140 Recommended storage zone Temperature ºC Honeywell Sensing and Control 3

HIH-4030/31 Series FIGURE 3. TYPICAL OUTPUT VOLTAGE VS RELATIVE HUMIDITY (At 25 ºC and 5 V.) 4 3.5 3 c) d V ge ( 2.5 Sensor Response a olt Sensor Response V ut 2 Best Linear Fit p ut O 1.5 1 0.5 0 20 40 60 80 100 Relative Humidity (%RH) FIGURE 4. TYPICAL OUTPUT VOLTAGE (BFSL) VS RELATIVE HUMIDITY (At 0 ºC, 70 ºC and 5 V.) 4.5 4 3.5 3 c) d V e ( 2.5 ag 0 C olt 70 C V ut 2 p ut O 1.5 1 0.5 0 0 10 20 30 40 50 60 70 80 90 100 Relative Humidity (%) 4 www.honeywell.com/sensing

Humidity Sensors FIGURE 5. HIH-4030 MOUNTING DIMENSIONS (For reference only. mm/[in]) Honeywell Sensing and Control 5

HIH-4030/31 Series FIGURE 6. HIH-4031 MOUNTING DIMENSIONS (For reference only. mm/[in]) FIGURE 7. HIH-4031 PCB LANDING PATTERN (For reference only. mm/[in]) 6 www.honeywell.com/sensing

Humidity Sensors FIGURE 8. TAPE AND REEL DIMENSIONS (For reference only. mm/[in]) 3,99 [0.157] DIA. 1,50 1,75 3,91 2,01 [0.059] [0.069] [0.154] [0.079] 2,64 [0.104] 11,51 [0.453] 24,00 2,64 [0.945] [0.076] 22,25 [0.876] DIA. 1,50 [0.059] 8,00 [0.315] 0,343 [0.0135] FIGURE 9. TYPICAL APPLICATION CIRCUIT ORDER GUIDE Catalog Listing Description HIH-4030-001 Covered integrated circuit humidity sensor, SMD, 1000 units on tape and reel HIH-4030-003 Covered integrated circuit humidity sensor, SMD, calibration and data printout, 1000 units on tape and reel HIH-4031-001 Covered, filtered integrated circuit humidity sensor, SMD, 1000 units on tape and reel HIH-4031-003 Covered, filtered integrated circuit humidity sensor, SMD, calibration and data printout, 1000 units on tape and reel HIH-4030-001S Sample pack: covered integrated circuit humidity sensor, SMD, five units on tape HIH-4030-003S Sample pack: covered integrated circuit humidity sensor, SMD, calibration and data printout, five units on tape HIH-4031-001S Sample pack: covered, filtered integrated circuit humidity sensor, SMD, sample pack, five units on tape HIH-4031-003S Sample pack: covered, filtered integrated circuit humidity sensor, SMD, calibration and data printout, five units on tape FURTHER HUMIDITY SENSOR INFORMATION See the following associated literature is available on the Web: • Product installation instructions • Application sheets: – Humidity Sensor Performance Characteristics – Humidity Sensor Theory and Behavior – Humidity Sensor Moisture and Psychrometrics – Thermoset Polymer-based Capacitive Sensors Honeywell Sensing and Control 7

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