Outside Air
Temperature
Sensor (OAT)
This sensor measures the temperature outside
the passenger compartment and is usually
mounted inside or near the front bumper
or in the side mirror. The sensor relays the
outside air temperature to the controller of the
automatic HVAC systems. The controller uses
this temperature to help control the interior
temperature of the vehicle. The sensor also
provides the vehicle occupants with temperature
readings from outside the car. This information
is particularly useful when driving under near
freezing or freezing conditions.
Features
• Low Price
• High sensitivity
• Wide application
• Compact design
• Integral sealed connector
• Small size
Applications
• Outside Air Temperature measurement
• Under hood or outside temperature
• Single hand installation with no tools
• Alternate RvT curves available
• Other resistance and beta values available
• Different geometries to meet package
requirements
Amphenol
Advanced Sensors
Resistance vs. Temperature Data
Resistance = 10000 Ohms at 25.00 °C Rtol. @ 25°C 1.50%
Temp.
(°C)
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
Rnominal
(ohms)
332776
240264
175427
129449
96481
72592
55109
42193
32566
25338
19869
15695
12486
10000
8060
6536
5331
4373
3606
2989
2490
2085
1754
1482
1257
1071
916.4
786.9
678.1
586.5
509.1
443.3
387.3
339.5
298.4
263.1
232.6
206.1
183.2
Res. Tol.
±%
5.95
5.50
5.07
4.65
4.24
3.84
3.46
2.71
2.71
2.44
2.19
1.95
1.72
1.50
1.71
1.91
2.11
2.29
2.47
2.66
2.84
3.00
3.16
3.31
3.45
3.58
3.80
4.00
4.19
4.29
4.38
4.48
4.59
4.69
4.79
4.89
5.00
5.11
5.21
Rmin.
(Ohms)
312976
227050
166533
123430
92390
69805
53203
41050
32683
24720
19433
15389
12271
9850
7922
6411
5219
4273
3517
2909
2419
2022
1698
1433
1214
1033
881.6
755.4
649.7
561.4
486.8
423.5
369.6
323.6
284.1
250.2
220.9
195.6
173.7
Rmax.
(Ohms)
352577
253479
184321
135468
100572
75380
57016
43337
33448
25956
20304
16001
12701
10150
8198
6661
5444
4473
3695
3068
2561
2147
1809
1531
1301
1110
951.2
818.3
706.6
611.7
531.4
463.2
405.1
355.4
312.7
275.9
244.2
216.7
192.8
Temp.
Coef.
(%/ °C)
6.63
6.40
6.18
5.98
5.78
5.60
5.43
5.26
5.10
4.94
4.79
4.65
4.51
4.38
4.25
4.13
4.02
3.91
3.81
3.70
3.60
3.51
3.42
3.33
3.24
3.16
3.09
3.01
2.94
2.87
2.80
2.73
2.67
2.61
2.55
2.49
2.44
2.39
2.33
Temp.
Accy.
(± °C)
0.90
0.86
0.82
0.78
0.73
0.69
0.64
0.52
0.53
0.49
0.46
0.42
0.38
0.34
0.40
0.46
0.52
0.59
0.65
0.72
0.79
0.86
0.93
0.99
1.06
1.13
1.23
1.33
1.43
1.49
1.57
1.64
1.72
1.80
1.88
1.96
2.05
2.14
2.23
Specifications
R @ 77°C (25°C)
10 KΩ ± 1.5%
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
B (25/85)°C
3957 – 3990
Operating Temperature
-30°C to 80°C
Storage Temperature
-40°C to 90°C
Temperature Accuracy
±0.34 @ 25°C
NTC Part Number
NDUS 7897
Response time
Maximum 30 seconds (in air)
Housing Material
Polyamide 6/6
Weight
2.85 grams
Connector
064-S-002-1-B02
Mating Connector
Molex Part No. 31402 2500
Amphenol
Advanced Sensors
www.amphenol-sensors.com
© 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
AAS-920-523C-03/2014
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