HIH-4000-001

DESCRIPTION
The HIH-4000 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 µA, the HIH-4000 Series is often ideally
suited for low drain, battery operated systems.
Tight sensor interchangeability reduces or eliminates OEM
production calibration costs. Individual sensor calibration data
is available.
The HIH-4000 Series delivers instrumentation-quality RH
(Relative Humidity) sensing performance in a competitively
priced, solderable SIP (Single In-line Package).
Available in two lead spacing configurations, the RH sensor is
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
wetting, dust, dirt, oils and common environmental chemicals.
FEATURES
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
Refrigeration equipment
HVAC (Heating, Ventilation and Air Conditioning)
equipment
Medical equipment
Drying
Metrology
Battery-powered systems
OEM assemblies
2 www.honeywell.com/sensing
Table 1. Performance Specifications (At 5 Vdc supply and 25 ºC [77 ºF] unless otherwise noted.)
Parameter
Minimum
Typical
Maximum
Unit
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
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)
1.2
% RH
Voltage supply
4
5.8
Vdc
Current supply
200
500
µA
Voltage output (1
st
order curve fit)
V
OUT
=(V
SUPPLY
)(0.0062(sensor RH) + 0.16), typical at 25 ºC
Temperature compensation
True RH = (Sensor RH)/(1.0546 0.00216T), T in ºC
Output voltage temperature, coefficient at
50% RH, 5 V
-4
mV/ºC
Operating temperature
-40[-40]
See Figure 1.
85[185]
ºC[ºF]
Operating humidity
0
See Figure 1.
100
% RH
Storage temperature
-50[-58]
125[257]
ºC[ºF]
Storage humidity
See Figure 2.
% RH
Specific Notes:
1. Can only be achieved with the supplied slope and offset.
For HIH-4000-003 and HIH-4000-004 catalog listings only.
2. Device is calibrated at 5 Vdc and 25 ºC.
3. Non-condensing environment.
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.
FACTORY CALIBRATION DATA
HIH-4000 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-4000-003
Channel
92
Wafer
030996M
MRP
337313
Calculated values at 5 V
V
OUT
at 0% RH
V
OUT
at 75.3% RH
0.826 V
3.198 V
Linear output for 3.5% RH
accuracy at 25 °C
Zero offset
Slope
RH
0.826 V
31.483 mV/%RH
(V
OUT
- zero offset)/slope
(V
OUT
- 0.826)/0.0315
Ratiometric response for
0% RH to 100% RH
V
OUT
V
SUPPLY
(0.1652 to 0.7952)
Honeywell Sensing and Control 3
Figure 1. Operating Environment (Non-condensing environment.)
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.)
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

HIH-4000-001

Mfr. #:
Manufacturer:
Description:
Board Mount Humidity Sensors 2.54MM SIP lead pitch SIP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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