UNTC-7D~60D Series
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Details
◆FEATURES

●7mm 9mm 11mm 13 mm 15mm 20mm 30mm 35mm 45mm 60mm Epoxy coated Disc Type.
●SURGE PROTECTORS of ceramic material are made from specially formulated metal oxide.
●The Power Thermistor is a device for suppressing inrush current to an electric circuit.
●The Power Thermistor in the circuits protects electric equipment’s from being damaged by limiting the inrush current.
 
Diameter
(mm)		 Part Number Resistance
at 25℃（Ω）		 Max. Steady State
Current (Amps)		 （ 25℃ Ambient）
Approx. Res
at Max. CurrentΩ		 Thermal Dissipation
Constant
（mW/℃）		 Thermal Time
Constant
（sec）
7 UNTC-2.5D-7 □ 2.5 3 0.110 9 35
UNTC - 5D- 7 □ 5 3 0.171 9 35
UNTC - 8D- 7 □ 8 2.5 0.245 9 35
UNTC -10D-7 □ 10 2.3 0.298 9 32
UNTC -12D-7 □ 12 2.3 0.327 12 30
UNTC -16D-7 □ 16 2 0.516 12 30
UNTC -22D-7 □ 22 1.5 0.714 10 32
UNTC -30D-7 □ 30 1.5 0.771 10 32
UNTC -50D-7 □ 50 1.2 0.638 10 30
9 UNTC-2.5D-9 □ 2.5 5 0.110 11 42
UNTC - 3D- 9 □ 3 4 0.121 11 42
UNTC - 5D- 9 □ 5 4 0.143 11 42
UNTC - 8D- 9 □ 8 3.5 0.139 12 43
UNTC -10D- 9 □ 10 3 0.172 12 50
UNTC -12D-9 □ 12 3 0.408 12 40
UNTC -16D-9 □ 16 2.5 0.359 11 44
UNTC -18D-9 □ 18 2 0.371 11 46
UNTC -22D-9 □ 22 2 0.402 11 46
UNTC -50D-9 □ 50 1.4 0.392 10 46
UNTC-400D-9□ 400 1 9.150 9 30
11 UNTC-  1D- 11 □ 1 5 0.090 17 65
UNTC- 1.5D- 11 □ 1.5 5 0.120 15 60
UNTC-  2D- 11 □ 2 5 0.099 12 55
UNTC- 2.5D- 11 □ 2.5 5 0.102 11 58
UNTC-  3D- 11 □ 3 4 0.106 11 60
UNTC-  4D- 11 □ 4 4 0.163 10 62
UNTC-  5D- 11 □ 5 4 0.168 10 58
UNTC-  6D- 11 □ 6 3 0.250 10 59
UNTC-  7D- 11 □ 7 3 0.262 13 60
UNTC-  8D- 11 □ 8 3 0.265 12 59
UNTC- 10D- 11 □ 10 3 0.273 12 56
UNTC- 12D- 11 □ 12 2 0.504 11 62
UNTC- 15D- 11 □ 15 2 0.500 12 40
UNTC- 16D- 11 □ 16 2 0.501 11 62
UNTC- 20D- 11 □ 20 2 0.557 12 60
UNTC- 25D- 11 □ 25 2 0.555 12 56
UNTC- 50D- 11 □ 50 2 0.723 10 58
UNTC- 80D- 11 □ 80 1 1.742 10 55
UNTC- 120D- 11 □ 120 1 2.335 15 91
13 UNTC-1.3D-13 □ 1.3 7 0.065 15 91
UNTC-2.5D-13 □ 2.5 6 0.094 16 85
UNTC- 3D- 13 □ 3 5 0.131 16 91
UNTC-  4D- 13 □ 4 5 0.139 16 91
UNTC-  5D- 13 □ 5 6 0.150 17 93
UNTC-  8D- 13 □ 8 4 0.207 15 91
UNTC- 10D- 13 □ 10 4 0.211 14 87
UNTC- 12D- 13 □ 12 4 0.227 18 82
UNTC- 16D- 13 □ 16 3 0.367 15 87
UNTC- 18D- 13 □ 18 3 0.391 15 92
UNTC- 20D- 13 □ 20 3 0.430 17 93
15 UNTC-1.3D-15□ 1.3 8 0.059 20 107
UNTC-1.5D-15□ 1.5 8 0.064 19 107
UNTC-2.5D-15□ 2.5 8 0.070 20 104
UNTC-  3D-15□ 3 5 0.089 20 105
UNTC-  4D-15□ 4 6 0.115 18 104
UNTC-  5D-15□ 5 6 0.122 20 110
UNTC-  7D-15□ 7 5 0.188 21 99
UNTC-  8D-15□ 8 5 0.186 15 103
UNTC-10D -15□ 10 5 0.182 19 103
UNTC-12D -15□ 12 4 0.252 21 102
UNTC-15D -15□ 15 4 0.260 17 101
UNTC-16D -15□ 16 4 0.285 22 102
UNTC-20D -15□ 20 4 0.292 20 101
UNTC-22D -15□ 22 4 0.303 17 107
UNTC-25D -15□ 25 3 0.482 21 100
UNTC-33D -15□ 33 3 0.490 18 102
UNTC-40D -15□ 40 3 0.496 20 101
UNTC-47D -15□ 47 3 0.517 21 102
UNTC-55D -15□ 55 3 0.534 21 102
UNTC-80D -15□ 80 2.5 0.748 22 102
UNTC-120D -15□ 120 2 1.159 20 104
20 UNTC-0.7D-20□ 0.7 12 0.039 25 145
UNTC- 1D-20 □ 1 10 0.051 28 160
UNTC-1.3D-20□ 1.3 8 0.064 24 144
UNTC- 2D-20 □ 2 8 0.072 21 140
UNTC-2.5D-20 □ 2.5 8 0.073 25 120
UNTC- 4D-20 □ 4 8 0.087 25 135
UNTC- 5D-20 □ 5 7 0.107 24 144
UNTC- 6D-20 □ 6 7 0.156 24 136
UNTC- 7D-20 □ 7 6 0.156 24 132
UNTC-10D -20 □ 10 6 0.158 23 135
UNTC-12D -20 □ 12 5 0.209 25 132
UNTC-20D -20 □ 20 6 0.197 22 127
UNTC-120D -20 □ 120 2 1.222 24 142
30 UNTC-0.7D-30□ 0.7 14 0.161 45 190
UNTC- 1D-30 □ 1 11 0.089 45 190
UNTC-1.5D-30□ 1.5 11 0.117 43 190
UNTC- 2D-30 □ 2 10 0.120 43 190
UNTC- 3D-30 □ 3 10 0.148 41 190
UNTC- 5D-30 □ 5 9 0.179 45 190
UNTC- 8D-30 □ 8 8 0.188 45 190
UNTC-10D-30 □ 10 8 0.232 45 190
UNTC-16D-30 □ 16 7 0.232 45 190
UNTC-20D -30 □ 20 7 0.245 45 190
UNTC-30D -30 □ 30 6 0.333 45 190
35 UNTC- 3D-35 □ 3 11 0.120 47 235
UNTC- 5D-35 □ 5 10 0.145 45 235
UNTC- 8D-35 □ 8 9 0.173 56 235
UNTC-10D -35 □ 10 9 0.179 47 235
UNTC-20D -35 □ 20 8 0.226 50 235
UNTC-30D -35 □ 30 7 0.296 50 235
45 UNTC- 1D-45 □ 1 14 0.078 66 285
UNTC-1.5D-45 □ 1.5 14 0.087 62 285
UNTC- 2D-45 □ 2 13 0.096 62 285
UNTC- 3D-45 □ 3 13 0.101 62 285
UNTC- 5D-45 □ 5 12 0.118 60 285
UNTC- 8D-45 □ 8 11 0.134 66 285
UNTC-10D -45 □ 10 11 0.140 62 285
UNTC-16D -45 □ 16 10 0.163 60 285
UNTC-20D -45 □ 20 10 0.170 60 285
UNTC-30D -45 □ 30 9 0.210 60 285
60 UNTC-0.5D-60□ 0.5 25 0.032 94 350
UNTC-0.7D-60□ 0.7 20 0.050 94 350
UNTC- 1D-60 □ 1 17 0.060 94 350
UNTC-1.5D-60□ 1.5 17 0.069 88 350
UNTC- 2D-60 □ 2 16 0.075 88 350
UNTC- 3D-60 □ 3 16 0.078 88 350
UNTC- 5D-60 □ 5 15 0.089 85 350
UNTC- 8D-60 □ 8 14 0.098 94 350
UNTC-10D -60 □ 10 14 0.102 88 350
UNTC-16D -60 □ 16 13 0.113 85 350
UNTC-20D -60 □ 20 13 0.118 85 350
UNTC-30D -60 □ 30 12 0.138 85 350
 
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Series Code Res. value Nominal Diameter Res. Tolerance
UNTC-7D~60D at 2 5℃  10 x 103 Ω 7 : 7mm 20 : 20mm J  :  ±  5%
    9 : 9mm 30 : 30mm K = ±10%
    11 : 11mm   35 :35mm L = ± 15%
    13 : 13mm 45 : 45mm M = ± 20%
    15 :15mm 60 : 60mm N = ±30%
 
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