1 DATA
TECHNICAL
TEMPERATURE AN D HUMIDITY MO DULE
Meets RoHS regulations
HTF3226LF
Based on the rugged HS1101LF humidity sensor, HTF3226LF is a dedicated humidity and
temperature transducer designed for OEM applications where a reliable and accurate measurement is
needed. It features a miniature connector for easy, cost-effective mechanical mounting. Direct interface
with a micro-controller is made possible with the module’s linear frequency output.
MAIN FEATURES
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The best combination of cost effectiveness and performance
Stable, linear proportional frequency output from 10 to 95% RH.
Calibrated w ithin +/- 5% RH @ 55% RH.
10 kohm +/- 3% NTC temperature sensor (1% optional)
Stable and reproducible characteristics with temperature.
High reliability and long term stability.
HUMIDITY SENSOR SPECIFIC FEATURES
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Instantaneous de-saturation after long periods in saturation phase.
Fast response time.
High resistance to chemicals.
Not affected by water immersion.
Patented solid polymer structure.
TEMPERATURE SENSOR SPECIFIC FEATURES
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High quality thermistor
Stable
High sensitivity
MAXIMUM RATINGS
Ratings
Symbol
Value
-40 to 85
0 to 100
7
Unit
°C
Storage Temperature
Storage Humidity Range
Supply Voltage (Peak)
Humidity Operating Range
Tstg
RHstg
Vs
% RH
Vdc
RH
0 to 99
-30 to 85
% RH
Temperature Operating Range Ta
°C
CHARACTERISTICS
Humidity sensor (Ta = 25°C, Vs = 5.0 Vdc +/- 5% , RL > 100 KΩ unless otherwise stated)
Characteristics
Symbol
Min.
Typ.
Max.
Unit.
Humidity metrology range
RH
1
99
% RH
Relative Humidity accuracy (10 to 95 % RH)
Voltage supply
RH
+/- 5
5.0
+/- 10
5.25
8830
0.1
% RH
VdC
Vs
4.75
Nominal output @ RH = 55 %
Current consumption
Fout
8670
8750
Hz
Ic
mA
Temperature coefficient (0 to 60 °C )
Averaged Sensitivity from 33 % to 75 % RH
Condensing conditions output (100% RH)
Recovery time after 150 hours of condensation
Humidity Hysteresis
Tcc
- 0.2
- 14
% RH/°C
Hz/% RH
Hz
∆Fout /∆ RH
-13
-16
Fout
8000
8300
t
10
s
+/-1
10
% RH
% RH/yr
s
Long term stability
+/ -0.5
Time constant (33 to 76% RH, static, @63 %)
τ
Humirel Sensor Device Data / HPC053 RevD June 2005