TECHNICAL DATA
RELATIVE HUMIDITY AND TEMPERATURE MODULE
1
HTM1505
Based on the rugged HS1101 humidity sensor , HTM1505 is a dedicated humidity and temperature
transducer designed for OEM applications where a reliable and accurate measurement is needed.
Direct interface with a micro-controller is made possible with the module’s humidity linear voltage
and direct NTC outputs.HTM1505 is designed for an optimized board to board connection.
M
AIN FEATURES
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Suitable for direct board assembly
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Not affected by repeated condensations
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Full interchangeability
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High reliability and long term stability
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Typical 1 to 4 Volt DC output for 0 to 100% RH at 5 V DC supply
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Humidity calibrated within +/- 2% RH @ 55% RH
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Temperature measurement through NTC 10 kohm +/- 3% direct output
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Ratiometric to voltage supply within the specified range
H
UMIDITYSENSOR SPECIFIC
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FEATURES
Instantaneous de-saturation
after long periods in saturation phase.
Patented solid polymer structure.
High resistance to chemicals.
Fast response time.
M
AXIMUM RATINGS
Ratings
Storage Temperature
Supply Voltage
(peak)
Humidity Operating Range
Symbol
Tstg
Vs
RH
Value
-40 to 85
7
0 to 100
-30 to 85
Unit
°C
Vdc
% RH
°C
Temperature Operating Range
Ta
.
C
HARACTERISTICS
(Ta = 23°C, Vs = 5Vdc, R
L
> 1M
otherwise stated)
Characteristics
Humidity measuring range
Relative Humidity accuracy (10 to 95% RH)
Voltage supply
Nominal output @ RH = 55%
Current consumption
Temperature coefficient (10 to 50 °C )
Averaged Sensitivity from 33% to 75% RH
NTC Nominal output @ 25°C / Tolerance +/-3%
Recovery time after 150 hours of condensation
Humidity Hysteresis
Long term stability
Response time (33 to 76% RH, static, @ 63%)
Output impedance
Sink current capability (R
L
15 k )
Symbol
RH
RH
V
s
V
out
I
c
T
cc
mV/% RH
Ta
t
Min
1
Typ
+/-5
Max
99
Unit
% RH
% RH
V
V
mA
% RH/°C
mV/% RH
kohm
s
% RH
%RH/yr
s
4.75
2.42
5.00
2.48
0.4
+ 0.1
+25
10
10
+/-1.5
0.5
5
5.25
2.54
0.8
Z
I
s
70
300
A
HUMIREL [ Humirel ]
