11
Part number
Dimensions
Taping
Package
Our newly developed
IT
thermistors are axial
leaded diode type packaged in high-density resin
mold and featured strength against various operating
environments.
We offer
IT
thermistor with 2% tolerance for a
resistance value of 25 C and 1% for B value.
IT
thermistors are the most appropriate device for
accurate temperature control below 100 C.
103 IT
IT thermistor
Rated zero-power resistance
at 25 C 103 : 10k
Mark
Reel
Ammopack (Zig-Zag)
Epoxy
0.6 Silver plated
CP wire
2
0
9
2
7
2
70
2
1
5
260
5
80
5
24
0.5
3
2
3
2
30
2
30
2
3
0.1
103
AA
Lot NO
103 : 10k
Unit (mm)
(mm)
Unit (mm)
Unit (mm)
2
5
6
1.2 max
0.5 max.
Minimum quantity : 5000 pcs/reel
Minimum quantity : 2000 pcs/box
Label
52
182.1
93.35
49.85
27.75
16.02
9.541
5.876
3.728
2.431
1.623
303.4
155.6
83.09
46.25
26.70
15.90
9.793
6.214
4.051
2.705
367.7
204.7
118.5
71.02
43.67
27.70
18.07
12.11
8.301
5.811
1539
810.8
445.1
253.8
149.8
91.31
57.32
36.99
24.47
16.56
3135
1602
855.0
474.4
272.7
161.9
99.13
62.38
40.24
26.58
9584
4572
2282
1191
647.2
365.0
212.5
127.7
78.88
50.03
1026
540.5
296.7
169.2
99.85
60.87
38.21
24.66
16.31
11.04
Specifications
Part No.
R
25
*
1
B value
*
2
Dissipation factor
(mW/ C)
3.6
3.6
3.6
3.6
3.6
3.6
3.6
Thermal time
constant (s)
*
3
13.5
13.5
13.5
13.5
13.5
13.5
13.5
Operating temp.
range ( C)
50 125
50 125
50 100
50 125
50 125
50 125
50 125
Rated power
at 25 C (mW)
18.0
18.0
18.0
18.0
18.0
18.0
18.0
*
1
R
25
: Rated zero-power resistance value at 25 C,
*
2
B value : determined by rated zero-power resistance at 25 C and 85 C.
*
3
Time when thermistor temperature reaches 63.2% of the temperature difference. The value is measured in the air.
1% and 3% are also available.
302IT
502IT
103IT
203IT
3.0k
5.0k
10.0k
20.0k
30.0k
50.0k
100.0k
2%
2%
2%
2%
2%
2%
2%
3860K 1%
3860K 1%
3435K 1%
3760K 1%
3760K 1%
4055K 1%
4390K 1%
Resistance-Temperature
50
40
30
20
10
0
10
20
30
40
Temperature
( C)
Temperature
( C)
50
60
70
80
90
100
110
120
125
1.109
0.7744
0.5513
0.4000
0.2951
0.2210
0.1680
0.1295
0.1142
1.849
1.291
0.9189
0.6667
0.4918
0.3683
0.2800
0.2158
0.1903
4.147
3.011
2.224
1.668
1.267
0.9753
7.632
5.380
3.861
2.815
2.083
1.564
1.190
0.9159
0.8067
11.45
8.070
5.792
4.223
3.125
2.346
1.785
1.374
1.210
17.93
12.33
8.588
6.064
4.338
3.142
2.302
1.705
1.472
32.51
21.61
14.66
10.13
7.135
5.111
3.720
2.746
2.371
Unit (k )
IT
THERMISTOR
Unit
104IT
503IT
302IT
502IT
103IT
203IT
303IT
503IT
104IT
302IT
502IT
203IT
303IT
503IT
104IT
103IT
303IT
Type
Type
ACCURATE AXIAL TYPE THERMISTOR