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Honeywell International Electronic Components Datasheet

HIH-5031-001 Datasheet

Low Voltage Humidity Sensors

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DESCRIPTION
The HIH-5030/5031 Series Low Voltage Humidity Sensors
operate down to 2.7 Vdc, often ideal in battery-powered
systems where the supply is a nominal 3 Vdc.
The HIH 5030/5031 complements our existing line of 5 Vdc
SMD (Surface Mount Device) humidity sensors. SMD
packaging on tape and reel allows for use in high volume,
automated pick and place manufacturing, eliminating lead
misalignment to printed circuit board through-holes.
The HIH-5030/5031 Series Humidity Sensors are designed
specifically for high volume OEM (Original Equipment
Manufacturer) users.
Direct input to a controller or other device is made possible by
this sensor s near linear voltage output. With a typical current
draw of only 200 A, the HIH-5030/5031 Series is ideally
suited for many low drain, battery operated systems.
Tight sensor interchangeability reduces or eliminates OEM
production calibration costs.
FEATURES
Operates down to 2.7 Vdc, often ideal in battery-powered
systems where the supply is a nominal 3 Vdc.
Tape and reel packaging allows for use in high volume pick
and place manufacturing (1,000 units per tape and reel)
Molded thermoset plastic housing
Near linear voltage output vs %RH
Laser trimmed interchangeability
Low power design
Enhanced accuracy
Fast response time
Stable, low drift performance
Chemically resistant
The HIH-5030/5031 Series delivers instrumentation-quality RH
(Relative Humidity) sensing performance in a competitively
priced, solderable SMD.
The HIH-5030 is a covered integrated circuit humidity sensor.
The HIH-5031 is a covered, condensation-resistant, integrated
circuit humidity sensor that is factory-fitted with a hydrophobic
filter allowing it to be used in many condensing environments
including industrial, medical and commercial applications.
The RH sensor uses a laser trimmed, thermoset polymer
capacitive sensing element with on-chip integrated signal
conditioning.
The sensing element's multilayer construction provides
excellent resistance to most application hazards such as
condensation, dust, dirt, oils and common environmental
chemicals.
Sample packs are available. See order guide.
POTENTIAL APPLICATIONS
Industrial
Air compressors
Battery-powered systems
Drying equipment
HVAC (includes air conditioning, air movement,
thermostats, humidifiers, de-humidifiers, humidistats,
enthalpy sensing)
OEM assemblies
Office automation equipment
Process equipment
Refrigeration (includes bulk and transport systems)
Telecommunications cabinets
Weather stations and meteorology equipment
Medical
Hospital air compressors
Infant incubators
Microenvironments
Sleep apnea equipment
Treadmill stress monitoring equipment


Honeywell International Electronic Components Datasheet

HIH-5031-001 Datasheet

Low Voltage Humidity Sensors

No Preview Available !

Table 1. Performance Specifications (At 3.3 Vdc supply and 25 C [77 F] unless otherwise noted.)
Parameter
Minimum
Typical
Maximum
Unit
Specific
Note
Interchangeability (first order curve)
0% RH to 10% RH, 90% RH to 100% RH
-7
7
% RH
11% RH to 89% RH
-3
3
% RH
Accuracy (best fit straight line) 11% RH to 89% RH
-3
+3
% RH
4
Hysteresis
2
% RH
Repeatability
0.5
% RH
Settling time
70
ms
Response time (1/e in slow moving air)
5
s
Stability (at 50% RH in 5 years)
1.2
% RH
1
Voltage supply
2.7
5.5
Vdc
2
Current supply
200
500
A
Voltage output (1st order curve fit)
Temperature compensation
VOUT=(VSUPPLY)(0.00636(sensor RH) + 0.1515), typical at 25 C
True RH = (Sensor RH)/(1.0546 0.00216T), T in C
Output voltage temp. coefficient at 50% RH, 3.3 V
-2
mV/ C
Operating temperature
-40[-40] See Figure 2. 85[185]
C[ F]
Operating humidity (HIH-5030)
0
See Figure 2.
100
% RH
3
Operating humidity (HIH-5031)
0
See Figure 2.
100
% RH
Storage temperature
-50[-58]
125[257]
C [ F]
Storage humidity
See Figure 3.
% RH
3
Specific Notes:
1. Includes stress outside of recommended operating zone.
General Notes:
Sensor is ratiometric to supply voltage.
2. Device is tested at 3.3 Vdc and 25 C.
3. Non-condensing environment. When liquid water falls on
Extended exposure to >90 % RH causes a reversible shift
of 3 % RH.
the humidity sensor die, output goes to a low rail condition
indicating no humidity.
Sensor is light sensitive. For best performance, shield
sensor from bright light.
4. Total accuracy including interchangeability is 3 %RH.
2
www.honeywell.com/sensing


Part Number HIH-5031-001
Description Low Voltage Humidity Sensors
Maker Honeywell
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