TECHNICAL
TEMPERATURE AND HUMIDITY MODULE
Meets RoHS regulations
1
DATA
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鈥檚 linear
frequency output.
M
AIN FEATURES
G
G
G
G
G
G
The best combination of cost effectiveness and performance
Stable, linear proportional frequency output from 10 to 95% RH.
Calibrated within +/- 5% RH @ 55% RH.
10 kohm +/- 3% NTC temperature sensor (1% optional)
Stable and reproducible characteristics with temperature.
High reliability and long term stability.
H
UMIDITY SENSOR SPECIFIC FEATURES
G
G
G
G
G
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.
T
EMPERATURE SENSOR SPECIFIC FEATURES
G
High quality
thermistor
G
Stable
G
High sensitivity
M
AXIMUM RATINGS
Ratings
Symbol
Value
Unit
Storage Temperature
Storage Humidity Range
Supply Voltage (Peak)
Humidity Operating Range
T
stg
RH
stg
Vs
RH
-40 to 85
0 to 100
7
0 to 99
-30 to 85
擄C
% RH
Vdc
% RH
擄C
Temperature Operating Range
Ta
C
HARACTERISTICS
Humidity sensor
Humidity metrology range
Relative Humidity accuracy (10 to 95 % RH)
Voltage supply
Nominal output @ RH = 55 %
Current consumption
Temperature coefficient (0 to 60 擄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 %)
+/-0.5
(Ta = 25擄C, Vs = 5.0 Vdc +/- 5%, R
L
> 100 K鈩?unless otherwise stated)
Characteristics
Symbol
Min.
Typ.
Max.
Unit.
RH
RH
V
s
F
out
I
c
T
cc
1
+/- 5
4.75
8670
5.0
8750
- 0.2
-13
8000
10
- 14
-16
99
+/- 10
5.25
8830
0.1
% RH
% RH
VdC
Hz
mA
% RH/擄C
Hz/% RH
Hz
s
% RH
% RH/yr
s
鈭?/div>
F
out
/
鈭?/div>
RH
Fout
8300
+/-1
t
蟿
10
Humirel Sensor Device Data /
HPC053
RevD June 2005
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