HTF3226LF Datasheet, PDF (1/4 Pages) Humirel – TEMPERATURE AND HUMIDITY MODULE

1 _{TECHNICAL DATA}
TEMPERATURE AND HUMIDITY MODULE 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
G _{The best combination of cost effectiveness and performance}
G Stable, linear proportional frequency output from 10 to 95% RH.
G Calibrated within +/- 5% RH @ 55% RH.
G 10 kohm +/- 3% NTC temperature sensor (1% optional)
G Stable and reproducible characteristics with temperature.
G High reliability and long term stability.
HUMIDITY SENSOR SPECIFIC FEATURES
G Instantaneous de-saturation after long periods in saturation phase.
G Fast response time.
G High resistance to chemicals.
G Not affected by water immersion.
G Patented solid polymer structure.
TEMPERATURE SENSOR SPECIFIC FEATURES
G High quality thermistor
G Stable
G High sensitivity
MAXIMUM RATINGS
Ratings
Symbol
Storage Temperature
Tstg
Storage Humidity Range RHstg
Supply Voltage (Peak)
Vs
Humidity Operating Range RH
Temperature Operating Range Ta
Value
-40 to 85
0 to 100
7
0 to 99
-30 to 85
Unit
°C
% RH
Vdc
% RH
°C
CHARACTERISTICS
Humidity sensor (Ta = 25°C, Vs = 5.0 Vdc +/- 5%, R_L > 100 KΩ unless otherwise stated)
Characteristics
Symbol
Min.
Typ.
Max.
Unit.
Humidity metrology range
Relative Humidity accuracy (10 to 95 % RH)
Voltage supply
Nominal output @ RH = 55 %
Current consumption
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
Long term stability
Time constant (33 to 76% RH, static, @63 %)
RH
RH
Vs
Fout
Ic
Tcc
∆Fout /∆ RH
Fout
t
τ
1
4.75
8670
-13
8000
+/- 5
5.0
8750
- 0.2
- 14
10
+/-0.5
99
+/- 10
5.25
8830
0.1
-16
8300
+/-1
10
% RH
% RH
VdC
Hz
mA
% RH/°C
Hz/% RH
Hz
s
% RH
% RH/yr
s
Humirel Sensor Device Data / HPC053 RevD June 2005