HTG3400 Series
Compliant with RoHS regulations
RELATIVE HUMIDITY AND TEMPERATURE MODULE
Based on the rugged HUMIREL humidity sensor, the HTG3400 series are dedicated humidity and temperature plug and
play transducers designed for OEM applications where reliable and accurate measurements are needed. Direct interface
with a micro-controller is made possible with the modules humidity linear frequency and direct NTC outputs. The
HTG3400 series are designed for high volume and demanding applications, where power consumption is critical.
• HTG SERIES GENERAL CHARACTERISTICS
Main Features
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Suitable for small bulk assembly
Product free from Lead, Cr (6+), Cd and Hg. Compliant with RoHS
Reliability not affected by repeated condensation
Full interchangeability. Better than +/-3%RH and +/-0.25°C
Demonstrated reliability and long term stability
Humidity calibrated within +/- 3% RH @ 55% RH
Temperature measurement through NTC direct output
Ratiometric to voltage supply within the specified range
HTG3400 Series are also available with a Humidity Linear Voltage Output : HTG3500 Series (HPC123_0)
OPERATING RANGE
Maximum Ratings
Ratings
Storage Temperature
Supply Voltage (Peak)
Humidity Operating Range
Temperature Operating Range
Maximum Output Current (Peak)
Maximum Power
100
75
50
25
0
Peak Condition
at 450g/kg
Sym bol
Tstg
Vcc
Value
- 40 to +125
20
Unit
°C
Vdc
Maximum Humidity
of 250g/kg
RH
Ta
0 to 100
-40 to +110
3
%RH
°C
I peak
Pd
mA
mW
-40
-20
0
20
40
60
80
100
TEMPERATURE IN °C
10
Electrical Characteristics
(@T=23°C, RL>1MΩ unless otherwise noted)
H um idity Characteristics
Humidity Measuring Range
Relative Humidity Accuracy (10% to 95%RH)
Temperature coefficient (10°C to 50°C)
Recovery time after 150 hours of condensation
Humidity hysteresis
Sym bol
RH
M in
0
Typ
M ax
100
±5
Unit
%RH
%RH
%RH/°C
s
±3
-0.05
10
Tcc
t
-0.1
+/-1
%RH
Output impedance
Z
I
tw
τ
50
1
Ω
mA
ms
s
Sink current capability (RL_Min = 8 kOhms) (1)
Warm up time
150
5
Constant Time (at 63% of signal) 33%RH to 75%RH (2)
10
(1) Conditions of sink current: Vout + 0.054V (3%RH) at Vout = 0.600 V (Vout min)
(2) At 1m/s air flow
Tem perature Characteristics*
Nominal resistance @ 25°C
Beta value : B25/50
Temperature measuring range
Nominal Resistance Tolerance at 25°C
B value tolerance
Sym bol
M in
Typ
10
3380
M ax
10.1
3414
85
Unit
kꢀ
K
°C
%
R
9.9
B
3346
-40
Ta
Rn
B
1
1
%
Constant Time
ꢁ
10
s
* Except for low temperatures
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
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