ACCURATE AXIAL TYPE THERMISTOR
IT THERMISTOR
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 Ϯ2% tolerance for a
resistance value of 25ЊC and Ϯ1% for B value.
IT thermistors are the most appropriate device for
accurate temperature control below 100ЊC.
Part number
103 I T
IT thermistor
Rated zero-power resistance
at 25ЊC 103 : 10k⍀
Dimensions
Epoxy
0.6 Silver plated
CP wire
Mark
Package
Reel
24Ϯ0.5
Ammopack (Zig-Zag)
Label
30Ϯ2
3Ϯ0.1 30Ϯ2
103 AA
Lot NO
103 : 10k⍀
Unit (mm)
Minimum quantity : 5000 pcs/reel
70Ϯ2
2
Unit (mm)
260Ϯ5
Minimum quantity : 2000 pcs/box
80Ϯ5
Unit (mm)
Taping
0.5 max. 6
5
1.2 max
52
Unit (mm)
Specifications
Part No.
302 I T
502 I T
103 I T
203 I T
303 I T
503 I T
104 I T
R25*1
3.0k⍀Ϯ2%
5.0k⍀Ϯ2%
10.0k⍀Ϯ2%
20.0k⍀Ϯ2%
30.0k⍀Ϯ2%
50.0k⍀Ϯ2%
100.0k⍀Ϯ2%
B value*2
3860KϮ1%
3860KϮ1%
3435KϮ1%
3760KϮ1%
3760KϮ1%
4055KϮ1%
4390KϮ1%
Dissipation factor
(mW/ ЊC)
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
Rated power
at 25ЊC (mW)
18.0
18.0
18.0
18.0
18.0
18.0
18.0
Operating temp.
range (ЊC)
Ϫ50ϳ125
Ϫ50ϳ125
Ϫ50ϳ100
Ϫ50ϳ125
Ϫ50ϳ125
Ϫ50ϳ125
Ϫ50ϳ125
1 R25 : Rated zero-power resistance value at 25ЊC, Ϯ1% and 3% are also available.
*2 B value : determined by rated zero-power resistance at 25ЊC and 85ЊC.
**3 Time when thermistor temperature reaches 63.2% of the temperature difference. The value is measured in the air.
Resistance-Temperature
Temperature
(ЊC)
Ϫ50
Ϫ40
Ϫ30
Ϫ20
Ϫ10
0
10
20
30
40
302 I T
182.1
93.35
49.85
27.75
16.02
9.541
5.876
3.728
2.431
1.623
502 I T
303.4
155.6
83.09
46.25
26.70
15.90
9.793
6.214
4.051
2.705
103 I T
367.7
204.7
118.5
71.02
43.67
27.70
18.07
12.11
8.301
5.811
Type
203 I T
1026
540.5
296.7
169.2
99.85
60.87
38.21
24.66
16.31
11.04
303 I T
1539
810.8
445.1
253.8
149.8
91.31
57.32
36.99
24.47
16.56
503 I T
3135
1602
855.0
474.4
272.7
161.9
99.13
62.38
40.24
26.58
104 I T
9584
4572
2282
1191
647.2
365.0
212.5
127.7
78.88
50.03
Temperature
(ЊC)
50
60
70
80
90
100
110
120
125
302I T
1.109
0.7744
0.5513
0.4000
0.2951
0.2210
0.1680
0.1295
0.1142
502I T
1.849
1.291
0.9189
0.6667
0.4918
0.3683
0.2800
0.2158
0.1903
103 I T
4.147
3.011
2.224
1.668
1.267
0.9753
Type
203 I T
7.632
5.380
3.861
2.815
2.083
1.564
1.190
0.9159
0.8067
303 I T
11.45
8.070
5.792
4.223
3.125
2.346
1.785
1.374
1.210
503 I T
17.93
12.33
8.588
6.064
4.338
3.142
2.302
1.705
1.472
104I T
32.51
21.61
14.66
10.13
7.135
5.111
3.720
2.746
2.371
Unit (k⍀)
11