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.
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.
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
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
2 www.honeywell.com/sensing
Table 1. Performance Specifications (At 3.3 Vdc supply and 25 C [77 F] unless otherwise noted.)
Parameter
Minimum
Typical
Maximum
Unit
Interchangeability (first order curve)
0% RH to 10% RH, 90% RH to 100% RH
11% RH to 89% RH
-7
-3
7
3
% RH
% RH
Accuracy (best fit straight line) 11% RH to 89% RH
-3
+3
% RH
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
Voltage supply
2.7
5.5
Vdc
Current supply
200
500
A
Voltage output (1st order curve fit)
VOUT=(VSUPPLY)(0.00636(sensor RH) + 0.1515), typical at 25 C
Temperature compensation
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.
2. Device is tested at 3.3 Vdc and 25 C.
3. Non-condensing environment. When liquid water falls on
the humidity sensor die, output goes to a low rail condition
indicating no humidity.
4. Total accuracy including interchangeability is 3 %RH.
General Notes:
Sensor is ratiometric to supply voltage.
Extended exposure to >90 % RH causes a reversible shift
of 3 % RH.
Sensor is light sensitive. For best performance, shield
sensor from bright light.
Honeywell Sensing and Control 3
Figure 1. Operating Environment (Non-condensing environment for HIH-5030 catalog listings only.)
0%
10%
20%
30%
50%
40%
60%
70%
80%
90%
100%
-40 20-20 0 40 60 80 100
Relative Humidity
Temperature ºC
Recommended operating zone
Operating zone limited to <50 hours
No specification zone
Figure 2. Storage Environment (Non-condensing environment for HIH-5030 catalog listings only.)
0%
10%
20%
30%
50%
40%
60%
70%
80%
90%
100%
-40 20-20 0 40 60 80 100 120 140
Relative Humidity
Temperature ºC
Recommended storage zone
4 www.honeywell.com/sensing
Figure 3. Typical Output Voltage vs Relative Humidity (At 25 °C and 3.3 Vdc.)
020 40 60 80 100
0.5
1
2
2.5
3
1.5
Relative Humidity (%RH)
Output Voltage (Vdc)
Rising RH
Falling RH
Figure 4. Typical Output Voltage (BFSL) vs Relative Humidity (At 0 C, 70 C and 3.3 Vdc.)
020 40 60 80 100
0.5
1
2
2.5
3
1.5
Relative Humidity (%RH)
Output Voltage (Vdc)
70° C
0° C
Honeywell Sensing and Control 5
Figure 5. HIH-5030 Mounting Dimensions (For reference only. mm/[in])
2,54
[0.100]
0.57
[0.226]
1,27
[0.050] 2,54
[0.100]
3X 0,38
[0.015]
4,17 ±0,05
[0.164 ±0.002]
-ve
OUT
+ve
0,71
[0.028]
2,27 ±0,05
[0.090 ±0.002]
8,59 ±0,05
[0.338 ±0.002]
2,67
[0.105]
0,41
[0.016]
1,22
[0.048]
2,62
[0.103] 2,95
[0.116]
1,78
[0.070]
Figure 6. HIH-5030 PCB Landing Pattern (For reference only. mm/[in])
2X 1,27
[0.05]
3X 0,51
[0.02]
8,89
[0.35]
1,78
[0.07]
2,29
[0.09]
2,54
[0.10]
PCB LANDING PATTERN
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Figure 7. HIH-5031 Mounting Dimensions (For reference only. mm/[in])
2,54
[0.100]
0.57
[0.226]
1,27
[0.050] 2,54
[0.100]
3X 0,38
[0.015]
4,17 ±0,05
[0.164 ±0.002]
-ve
OUT
+ve
0,71
[0.028]
2,27 ±0,05
[0.090 ±0.002]
8,59 ±0,05
[0.338 ±0.002]
2,67
[0.105]
0,41
[0.016]
1,22
[0.048]
2,62
[0.103] 2,95
[0.116]
FILTER
1,78
[0.070]
Figure 8. HIH-5031 PCB Landing Pattern (For reference only. mm/[in])
2X 1,27
[0.05]
3X 0,51
[0.02]
8,89
[0.35]
1,78
[0.07]
2,29
[0.09]
2,54
[0.10]
PCB LANDING PATTERN
Honeywell Sensing and Control 7
Figure 9. Tape and Reel Dimensions (For reference only. mm/[in])
8,00
[0.315]
11,51
[0.453]
2,64
[0.104]
22,25
[0.876]
1,75
[0.069]
24,00
[0.945]
2,64
[0.076]
DIA. 1,50
[0.059]
2,01
[0.079]
3,99
[0.157]
DIA. 1,50
[0.059]
3,91
[0.154]
0,343
[0.0135]
25,4
[1]
DIA. 101,6
[4] DIA. 330,2
[13]
Figure 10. Typical Application Circuit
HIH-50XX
+ Ve
- Ve
OUT Supply Voltage (3.3 V)
Voltage Out
0 V
Minimum
Load
65
kOhm
ORDER GUIDE
Catalog Listing
Description
HIH-5030-001
Covered integrated circuit humidity sensor, SMD, 1000 units on tape and reel
HIH-5031-001
Covered, filtered integrated circuit humidity sensor, SMD, 1000 units on tape and reel
HIH-5030-001S
Sample pack: covered integrated circuit humidity sensor, SMD, five units on tape
HIH-5031-001S
Sample pack: covered, filtered integrated circuit humidity sensor, SMD, sample pack, five units on tape
ADDITIONAL 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
Sensing and Control
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
www.honeywell.com
009050-2-EN IL50 GLO Printed in USA
Mar 2010
© 2010 Honeywell International Inc. All rights reserved.
WARNING
MISUSE OF DOCUMENTATION
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result
in death or serious injury.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell s
standard product warranty applies unless agreed to otherwise
by Honeywell in writing; please refer to your order
acknowledgement or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell
during the period of coverage, Honeywell will repair or replace,
at its option, without charge those items it finds defective. The
foregoing is buyer s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
While we provide application assistance personally, through
our literature and the Honeywell web site, it is up to the
customer to determine the suitability of the product in the
application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this
printing. However, we assume no responsibility for its use.
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result
in death or serious injury.
SALES AND SERVICE
Honeywell serves its customers through a worldwide network
of sales offices, representatives and distributors. For
application assistance, current specifications, pricing or name
of the nearest Authorized Distributor, contact your local sales
office or:
E-mail: info.sc@honeywell.com
Internet: www.honeywell.com/sensing
Phone and Fax:
Asia Pacific +65 6355-2828
+65 6445-3033 Fax
Europe +44 (0) 1698 481481
+44 (0) 1698 481676 Fax
Latin America +1-305-805-8188
+1-305-883-8257 Fax
USA/Canada +1-800-537-6945
+1-815-235-6847
+1-815-235-6545 Fax