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
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)
Maximum Ratings
OPERATING RANGE
100
Tstg
Vcc
RH
Ta
I peak
Pd
- 40 to +125
20
0 to 100
-40 to +110
3
10
°C
Vdc
%RH
°C
mA
mW
RELATIVE HUMIDITY IN %RH
Storage Temperature
Supply Voltage (Peak)
Humidity Operating Range
Temperature Operating Range
Maximum Output Current (Peak)
Maximum Power
Peak Condition
at 450g/kg
75
Maximum Humidity
of 250g/kg
50
25
0
-40
-20
0
20
40
60
80
100
TEMPERATURE IN °C
Electrical Characteristics
(@T=23°C, RL>1MΩ unless otherwise noted)
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
Output impedance
Sink current capability (RL_Min = 8 kOhms) (1)
Warm up time
Constant Time (at 63% of signal) 33%RH to 75%RH (2)
(1)
(2)
RH
0
Tcc
t
Z
I
tw
τ
±3
-0.05
10
+/-1
100
±5
-0.1
50
1
150
5
10
%RH
%RH
%RH/°C
s
%RH
Ω
mA
ms
s
Conditions of sink current: Vout + 0.054V (3%RH) at Vout = 0.600 V (Vout min)
At 1m/s air flow
*
Nominal resistance @ 25°C
Beta value : B25/50
Temperature measuring range
Nominal Resistance Tolerance at 25°C
B value tolerance
Constant Time
R
B
Ta
Rn
B
9.9
3346
-40
10
3380
10.1
3414
85
1
1
10
k
K
°C
%
%
s
* Except for low temperatures
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
1
Power Supply option of HTG3400 Series at 5VDC
Continuous Mode:
When powering HTG3400 series modules at 5VDC in continuous mode, an initial 3-minute stabilization time (ts) is
necessary to reach the temperature and the RH outputs with an optimum accuracy.
Pulsed Mode:
When powering HTG3400 series modules in pulsed mode, accurate temperature and RH measurement is reached
instantaneously. Time up (Tup) must be of 5% of the cycle time. Minimum time up (Tup) is 150 ms. Thus minimium
cycle time is 3s.
Supply Voltage (V)
Tup = 5% of
cycle time
Vcc = 5V
Time
Cycle time
Power Supply option of HTG3400 Series at 3.3VDC
At 3.3VDC power supply, there is no measurable impact of type of powering on temperature and RH accuracy.
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
2
Nomenclature
HTG3XYZ yyy
Connector Type
Voltage Supply: 3 for 3.3 Volts
5 for 5 Volts
Mechanical Package: 1 for Housing 1 with screw/fastener mount capability
3 for Housing 3 with PTFE membrane
Output Type: 4 for Frequency
5 for Voltage
• SPECIFIC ELECTRICAL AND METROLOGICAL CHARACTERISTICS
Electrical Characteristics
HTG34Y3
Voltage Supply (1) (2)
Nominal Output @55%RH (in continuous mode and pulsed mode)
Humidity Average Sensitivity (in continuous mode and pulsed mode)
Output Noise
Output High Level
Output Low Level
Sink Current Capability (VOL – 0.1V)
Source Current Capability (VOH + 0.1V)
Current consumption (in continuous and pulsed mode)
Measurement Window Time
(1)
(2)
Vcc
Fout
Hz/%RH
n
VOH
VOL
Isink
Isource
Icc
-
3.0
Vcc – 0.15
0.0
250
3.3
4960
+36
Vcc – 0.10
0.0
1.5
-
3.46
+/- 20
Vcc
0.1
500
250
2
-
Vdc
Hz
Hz
Hz
V
V
µA
µA
mA
ms
5
5075
4960
+43
+41
Vcc – 0.4
0.0
2.8
-
5.25
+/- 20
Vcc
0.1
500
350
5
-
Vdc
Hz
Hz
Hz
Hz
Hz
V
V
µA
µA
mA
ms
Module is ratiometric to voltage supply
Maximum power supply ramp up time to VCC should be less than 20ms
HTG34Y5
Voltage Supply (1) (2)
Nominal Output @55%RH (in pulsed mode)
Nominal Output @55%RH (in continuous mode)
Humidity Average Sensitivity (in pulsed mode)
Humidity Average Sensitivity (in continuous mode)
Output Noise
Output High Level
Output Low Level
Sink Current Capability (VOL – 0.1V)
Source Current Capability (VOH + 0.1V)
Current consumption (in continuous and pulsed mode)
Measurement Window Time
(1)
(2)
Vcc
Fout
Fout
Hz/%RH
Hz/%RH
n
VOH
VOL
Isink
Isource
Icc
-
4.75
Vcc – 0.5
0.0
250
Module is ratiometric to voltage supply
Maximum power supply ramp up time to VCC should be less than 20ms
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
3
Humidity Sensor
!
"
#
$
Reference Output Values (Vcc = 5V)
In Continuous Mode
Reference Output Values (Vcc = 5V)
In Pulsed Mode (5%)
%& '
10
15
20
25
30
35
40
45
50
"
% ('
2970
3230
3480
3725
3965
4200
4425
4645
4860
%& '
"
% ('
5075
5280
5485
5690
5885
6085
6280
6475
6670
55
60
65
70
75
80
85
90
95
%& '
"
10
15
20
25
30
35
40
45
50
POLYNOMIAL EQUATION
% ('
2950
3195
3435
3670
3900
4125
4345
4550
4750
%& '
"
55
60
65
70
75
80
85
90
95
% ('
4960
5150
5345
5545
5725
5915
6105
6285
6465
POLYNOMIAL EQUATION
Fout = 6.39E-4 RH3 - 1.828E-1RH2 + 56.29 RH + 2424
RH = -8.97E-11Fout3 + 2.318E-6 Fout2 + 7.19E-3 Fout - 29.38
with Fout in Hz and RH in %
Fout = 6.03E-4 RH3 - 1.77E-1RH2 + 53.97 RH + 2425
RH = -9.07E-11Fout3 + 2.47E-6 Fout2 + 7.20E-3 Fout - 30.30
with Fout in Hz and RH in %
LINEAR EQUATION
LINEAR EQUATION
Fout = 43.15 RH + 2647
RH = 0.0231 Fout – 61.12
with Fout in Hz and RH in %
Fout = 41.05 RH + 2646
RH = 0.0243 Fout - 64.19
with Fout in Hz and RH in %
"
#
$
Reference Output Values (Vcc = 3.3V)
In any power mode
%& '
10
15
20
25
30
35
40
45
50
"
% ('
3270
3460
3650
3845
4035
4225
4410
4595
4780
%& '
55
60
65
70
75
80
85
90
95
"
% ('
4960
5140
5320
5495
5670
5840
6010
6180
6345
POLYNOMIAL EQUATION
Fout = -2E-5RH3 - 0.033RH2 + 39.94RH + 2867
RH = 5.7E-11 Fout3 + 7.4E-8 Fout2 + 2.42E-2 Fout – 70.10
with Fout in Hz and RH in %
LINEAR EQUATION
Fout = 36.18 RH + 2867
RH = 0.02755 Fout – 80.97
with Fout in Hz and RH in %
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
4
Temperature Sensor
Typical temperature output
Depending on the needed temperature measurement range and associated accuracy, we suggest two methods to access
to the NTC resistance values.
RT = RN ∗ e
RT
RN
T, TN
e
1 1
)
T TN
β( −
NTC resistance in at temperature T in K
NTC resistance in at rated temperature T in K
Temperature in K
Beta value, material specific constant of NTC
Base of natural logarithm (e=2.71828)
The exponential relation only roughly describes the actual characteristic of an NTC thermistor can, however, as
the material parameter in reality also depend on temperature. So this approach is suitable for describing a restricted
range around the rated temperature or resistance with sufficient accuracy.
For practical applications, a more precise description of the real R/T curve may be required. Either more
complicated approaches (e.g. the Steinhart-Hart equation) are used or the resistance/temperature relation as given in
tabulation form. The below table has been experimentally determined with utmost accuracy for temperature increments
of 1 degree.
Actual values may also be influenced by inherent self-heating properties of NTCs. Please refer to Humirel Application
Note HPC106-0 “Low power NTC measurement”.
Temperature Look-Up Table in pulsed mode or for a 3.3 continuous voltage supply
%* '
%) '
%* '
%) '
%* '
%) '
%* '
-40
-39
-38
-37
-36
-35
-34
-33
-32
-31
-30
-29
-28
-27
-26
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
195652
184917
174845
165391
156513
148171
140330
132958
126022
119494
113347
107565
102116
96978
92132
87559
83242
79166
75316
71677
68237
64991
61919
59011
56258
53650
51178
48835
46613
44506
42506
40600
38791
37073
35442
33892
32420
31020
29689
28423
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
27219
26076
24988
23951
22963
22021
21123
20267
19450
18670
17926
17214
16534
15886
15266
14674
14108
13566
13049
12554
12081
11628
11195
10780
10382
10000
9634
9284
8947
8624
8315
8018
7734
7461
7199
6948
6707
6475
6253
6039
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
5834
5636
5445
5262
5086
4917
4754
4597
4446
4301
4161
4026
3896
3771
3651
3535
3423
3315
3211
3111
3014
2922
2834
2748
2666
2586
2509
2435
2364
2294
2228
2163
2100
2040
1981
1925
1870
1817
1766
1716
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
1669
1622
1578
1535
1493
1452
1413
1375
1338
1303
1268
1234
1202
1170
1139
1110
1081
1053
1026
999
974
949
925
902
880
858
837
816
796
777
758
Delta Temperature corresponding to NTC deviation (°C)
2,5
2,0
Delta Temperature (°C)
%) '
1,5
1,0
0,5
0,0
-40
-20
0
20
40
60
80
100
Temperature (°C)
0.1°C tolerance on Resistance Measurement
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
5
Temperature Look-Up Table for a 5V continuous voltage supply
%* '
%) '
%* '
%) '
%* '
%) '
%* '
-40
-39
-38
-37
-36
-35
-34
-33
-32
-31
-30
-29
-28
-27
-26
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
176844
168835
161153
153786
146725
139958
133477
127271
121331
115648
110213
105017
100052
95309
90780
86457
82332
78398
74648
71074
67670
64428
61342
58405
55612
52956
50432
48034
45755
43592
41539
39590
37741
35988
34325
32748
31254
29837
28495
27223
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
26018
24980
23982
23024
22103
21219
20371
19557
18777
18028
17311
16623
15965
15334
14730
14152
13598
13069
12562
12078
11615
11172
10748
10343
9956
9586
9233
8895
8571
8262
7966
7684
7413
7154
6906
6668
6440
6222
6012
5811
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
5618
5432
5254
5082
4916
4757
4603
4454
4311
4172
4038
3908
3783
3661
3543
3429
3319
3212
3108
3008
2911
2817
2727
2640
2557
2477
2401
2329
2261
2197
2137
2081
2031
1985
1945
1910
1707
1654
1604
1559
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
1555
1515
1473
1431
1391
1352
1314
1277
1241
1206
1173
1140
1108
1076
1046
1017
988
960
934
907
882
857
833
810
787
765
743
722
702
682
663
Delta Temperature corresponding to NTC deviation (°C)
2,5
2,0
Delta Temperature (°C)
%) '
1,5
1,0
0,5
0,0
-40
-20
0
20
40
60
80
100
Temperature (°C)
0.1°C tolerance on Resistance Measurement
Humidity Error Budget Conditions at 23°C
HTG3400 series modules are specified for maximum accuracy measurements within 10 to 95 %RH.
Excursion out of this range (< 10% or > 95% RH, including condensation) does not affect the reliability of
HTG3400 series characteristics.
2
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
6
• CONNECTING AND MECHANICAL CHARACTERISTICS
Connecting Characteristics
$+
Side Connector
Short Male Connector (1) (3)
(1.65 mm – 0.065 in long)
+ ,
-
"
.
-
CH
1&3
PVBS
3
Samtec
CLT 104 Series
3
Direct Soldering
(through hole)
JST ZHR-4
1 2
3 4
Long Male Connector (2) (3)
(4.27 mm – 0.198 in long)
PVBL
1
Female Connector (1) (3)
23
4
CFB
-
3
Samtec
TMM 104-05-D
4 3 2
1
* For alternate connector type, please contact factory.
(1)
(2)
(3)
Connector should undergo vibration test before validation.
A second fixing point add double-sided adhesive tape (ref: 3M – 5925F).
For board-to-board mounting, we suggest wave soldering.
Pins are connected by twos.
Pin Out Assignment (with any connector)
/)
1
2
3
4
"
Ground
Vcc – Voltage Supply
NTC – Temperature
Fout - Humidity
Wiring Characteristics
$+
+ ,
0
1
With wires
3
Wiring cable length: TBD
Wiring cable type: AWG 30
Wiring cable length: TBD
Wiring cable type: AWG 30
Pin Out Assignment (with wires)
Black
Red
Green
Yellow
"
Ground
Vcc – Voltage Supply
NTC – Temperature
Fout - Humidity
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
7
Mechanical Characteristics
HTG Series Package Outline
31 4 %,
1 2
, 50
'
Package Outline
With CH connector
6
% '
27 ± 0.25
11.9 ± 0.2
5.5 ± 0.2
24.65 ± 0.25
Ø2.5 ± 0.2
6.7 ± 0.3
A
B
C
D
E
F
Color : Black
Weight : 1.5g
Housing 1 can be fixed with a M2 screw.
2
3 4 %,
- "7
'
Package Outline
with CH connector
6
A
B
C
F
% '
27 ± 0.25
11.9 ± 0.2
5.5 ± 0.2
6.7 ± 0.3
Color : Black
Weight : 1.8g
Package Outline
with PVBS connector
(1.65 mm – 0.065 in long)
6
A
B
C
F
% '
27 ± 0.25
11.9 ± 0.2
5.5 ± 0.2
8.2 ± 0.5
Color : Black
Weight : 1.8g
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
8
Package Outline
with PVBL connector
(4.27 mm – 0.198 in long)
6
A
B
C
F
% '
27 ± 0.25
11.9 ± 0.2
5.5 ± 0.2
10.8 ± 0.5
Color : Black
Weight : 1.8g
Package Outline
with CFB connector
6
A
B
C
F
% '
27 ± 0.25
11.9 ± 0.2
5.5 ± 0.2
5.96 ± 0.5
Color : Black
Weight : 1.8g
Double coated adhesive tape could be used on potted area for housings 1 and 3 (ref:.3M – 5925F) to fix parts.
• RESISTANCE TO PHYSICAL AND CHEMICAL STRESSES
HTG3400 series contain circuits to protect its inputs and outputs against Electrostatic discharges (ESD) up to
±15kV, air discharge.
HTG3400 series are protected against EMC interferences.
HTG3400 series are protected against reverse polarity.
Additional tests under harsh chemical conditions demonstrate good operation in presence of salt atmosphere,
SO2 (0.5%), H2S (0.5%), O3, NOx, NO, CO, CO2, Softener, Soap, Toluene, acids (H2SO4, HNO3, HCl), HMDS,
Insecticide, Cigarette smoke, a non-exhaustive list.
HTG3400 series are not light sensitive.
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
9
• ORDERING INFORMATION
HTG3XYZ yyy
3
4
$
4
Frequency
5
Voltage
+
0
A
1
3
(with screw/fatsener capability)
(with PTFE membrane)
8
Issue Originale
CTN LUT updated
3
3.3V
6
D. LE GALL
D. LE GALL
5
5V
CH
PVBS
PVBL
CFB
October 07
November 07
• DISCLAIMER
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsability is assumed for inaccuracies. Furthermore, this information does
not convey to the purchaser of semiconductor devices any license under the patent rights to the manufacturer. Humirel reserves the right to make changes without further notice to
any product herein. Humirel makes no warranty, representation of guarantee regarding the suitability of its product for any particular purpose, nor does Humirel assume any liability
arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. « Typical »
parameters can and do vary in different applications. All operating parameters, including « Typical » must be validated for each customer applications by customer’s technical
experts. Humirel does not convey any license under its patent rights nor the rights of others. Humirel products are not designed, intended, or authorized for use as components in
systems intended for surgical implant into the body, or other application intended to support or substain life, or for any application in which the failure of the Humirel product could
create a situation where personal injury or death may occur. Should buyer purchase or use Humirel products for any such unintended or unauthorized application. Buyer shall
indemnity and hold Humirel and its officers, employees, subsidiaries, affiliates and distributors harmless against all claims, costs, damages and expenses, and reasonable attorney
fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if claim alleges that Humirel was negligent
regarding the design or manufacture of the part. Humirel is a registered trade mark of Humirel.
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
10