
Inrush Current Limiters Power Type Thermistor NTC MF72 For Conversion Power-supply
PDF Specification File Download Link : MF72 Power NTC Thermistor.pdf
1.Description
The MF72 series Power NTC Thermistors provide inrush current suppression for sensitive electronics. Connecting a MF72 in series with the power source will limit the current surges typically created at turn on. Once the circuit is energized the resistance of the MF72 will decrease rapidly to a very low value, power consumption can be ignored and there will be no effect on normal operating current. Using the MF72 Power NTC Thermistor is a most cost-effective way to curb surge current and protect sensitive electronics from damage.
2.Features
3.Application
Can be installed into the power circuits of:
4. Dimension in mm
Part No./Dim (mm)/Sym | Dmax | Tmax | d +/- 0.05 Fig. II/I | F1 +/-1 Fig. II/I | F2 +/-1.5 Fig. II/III | Straight Lead Wire | Curved Lead Wire | |
L1min. Fig. II/III | L1min | L2+/-2 | ||||||
MF72- D5 | 7 | 5 | 0.6/0.45 | 5/2.5 | 3 | 25 * | 17/5 | 5 |
MF72- D7 | 9 | 5 | 0.6 | 5 | 3 | 25 | 17/5 | 5 |
MF72- D9 | 11 | 5.5 | 0.8/0.6 | 7.5/5 | 5/3 | 25 | 17/5 | 8 |
MF72- D11 | 13 | 5.5 | 0.8 | 7.5/5 | 5/3 | 25 | 17/5 | 8 |
MF72- D13 | 15.5 | 6 | 0.8 | 7.5 | 5 | 25 | 17/5 | 5 |
MF72- D15 | 17.5 | 6 | 0.8 | 10/7.5 | 5 | 25 | 17/5 | 5 |
MF72- D20 | 22.5 | 7 | 1.0 | 10/7.5 | / | 25 * | / | / |
MF72- D25 | 27.5 | 8 | 1.0 | 10 | / | 25 * | / | / |
Remark | L1min., 17/5 17 indicates the long bent lead wire, 5 indicates the
short bent lead wire (Fig. III) Illustration: In general, the long bent lead wire is used, see figure II Add suffix "L" + Fig. # to specify optional leads. * Straight Leads Are Standard |
5.Specifications
Part NO. | R25 (Ω) | Max. Steady State Current (A) | Approx.R of Max.Cur (Ω) | Dissi,Coef. (mW/℃) | Thermal time Constant (S) | Max. Load Capacitance in uF | Operating Temp. | |
120 VAC | 240 VAC | |||||||
MF72-5D5 | 5 | 1 | 0.353 | 6 | 20 | 188 | 47 | -55 to +200 |
MF72-10D5 | 10 | 0.7 | 0.771 | 6 | 20 | 188 | 47 | |
MF72-60D5 | 60 | 0.3 | 1.878 | 6 | 18 | 188 | 47 | |
MF72-200D5 | 200 | 0.1 | 18.70 | 6 | 18 | 88 | 22 | |
MF72-5D7 | 5 | 2 | 0.283 | 10 | 30 | 224 | 56 | |
MF72-8D7 | 8 | 1 | 0.539 | 9 | 28 | 224 | 56 | |
MF72-10D7 | 10 | 1 | 0.616 | 9 | 27 | 224 | 56 | |
MF72-12D7 | 12 | 1 | 0.816 | 9 | 27 | 224 | 56 | |
MF72-16D7 | 16 | 0.7 | 1.003 | 9 | 27 | 224 | 56 | |
MF72-22D7 | 22 | 0.6 | 1.108 | 9 | 27 | 224 | 56 | |
MF72-33D7 | 33 | 0.5 | 1.485 | 10 | 28 | 188 | 47 | |
MF72-200D7 | 200 | 0.2 | 11.65 | 11 | 28 | 188 | 47 | |
MF72-3D9 | 3 | 4 | 0.120 | 11 | 35 | 272 | 68 | |
MF72-4D9 | 4 | 3 | 0.190 | 11 | 35 | 272 | 68 | |
MF72-5D9 | 5 | 3 | 0.210 | 11 | 34 | 272 | 68 | |
MF72-6D9 | 6 | 2 | 0.315 | 11 | 34 | 272 | 68 | |
MF72-8D9 | 8 | 2 | 0.400 | 11 | 32 | 400 | 100 | |
MF72-10D9 | 10 | 2 | 0.458 | 11 | 32 | 400 | 100 | |
MF72-12D9 | 12 | 1 | 0.652 | 11 | 32 | 400 | 100 | |
MF72-16D9 | 16 | 1 | 0.802 | 11 | 31 | 400 | 100 | |
MF72-20D9 | 20 | 1 | 0.864 | 11 | 30 | 600 | 150 | |
MF72-22D9 | 22 | 1 | 0.950 | 11 | 30 | 600 | 150 | |
MF72-30D9 | 30 | 1 | 1.022 | 11 | 30 | 600 | 150 | |
MF72-33D9 | 33 | 1 | 1.124 | 11 | 30 | 600 | 150 | |
MF72-50D9 | 50 | 1 | 1.252 | 11 | 30 | 600 | 150 | |
MF72-60D9 | 60 | 0.8 | 1.502 | 11 | 30 | 600 | 150 | |
MF72-80D9 | 80 | 0.8 | 2.010 | 11 | 30 | 272 | 68 | |
MF72-120D9 | 120 | 0.8 | 3.015 | 11 | 30 | 272 | 68 | |
MF72-200D9 | 200 | 0.5 | 5.007 | 11 | 32 | 188 | 47 | |
MF72-400D9 | 400 | 0.2 | 30.30 | 11 | 32 | 188 | 47 | |
MF72-2.5D11 | 2.5 | 5 | 0.095 | 13 | 43 | 600 | 150 | |
MF72-3D11 | 3 | 5 | 0.100 | 13 | 43 | 600 | 150 | |
MF72-4D11 | 4 | 4 | 0.150 | 13 | 44 | 600 | 150 | |
MF72-5D11 | 5 | 4 | 0.156 | 13 | 45 | 600 | 150 | |
MF72-6D11 | 6 | 3 | 0.240 | 13 | 45 | 800 | 220 | |
MF72-8D11 | 8 | 3 | 0.255 | 14 | 47 | 800 | 220 | |
MF72-10D11 | 10 | 3 | 0.275 | 14 | 47 | 800 | 220 | |
MF72-12D11 | 12 | 2 | 0.462 | 14 | 48 | 800 | 220 | |
MF72-16D11 | 16 | 2 | 0.470 | 14 | 50 | 800 | 220 | |
MF72-20D11 | 20 | 2 | 0.512 | 15 | 52 | 800 | 220 | |
MF72-22D11 | 22 | 2 | 0.563 | 15 | 52 | 800 | 220 | |
MF72-30D11 | 30 | 1.5 | 0.667 | 15 | 52 | 800 | 220 | |
MF72-33D11 | 33 | 1.5 | 0.734 | 15 | 52 | 800 | 220 | |
MF72-50D11 | 50 | 1.5 | 1.021 | 15 | 52 | 800 | 220 | |
MF72-60D11 | 60 | 1.5 | 1.215 | 15 | 52 | 800 | 220 | |
MF72-80D11 | 80 | 1.2 | 1.656 | 15 | 52 | 600 | 150 | |
MF72-1.3D13 | 1.3 | 7 | 0.062 | 13 | 60 | 880 | 220 | |
MF72-1.5D13 | 1.5 | 7 | 0.073 | 13 | 60 | 880 | 220 | |
MF72-2.5D13 | 2.5 | 6 | 0.088 | 13 | 60 | 880 | 220 | |
MF72-3D13 | 3 | 6 | 0.092 | 14 | 60 | 880 | 220 | |
MF72-4D13 | 4 | 5 | 0.120 | 15 | 67 | 880 | 220 | |
MF72-5D13 | 5 | 5 | 0.125 | 15 | 68 | 880 | 220 | |
MF72-6D13 | 6 | 4 | 0.170 | 15 | 65 | 880 | 220 | |
MF72-7D13 | 7 | 4 | 0.188 | 15 | 65 | 1320 | 330 | |
MF72-8D13 | 8 | 4 | 0.194 | 15 | 60 | 1320 | 330 | |
MF72-10D13 | 10 | 4 | 0.206 | 15 | 65 | 1320 | 330 | |
MF72-12D13 | 12 | 3 | 0.316 | 16 | 65 | 1320 | 330 | |
MF72-15D13 | 15 | 3 | 0.335 | 16 | 60 | 1320 | 330 | |
MF72-16D13 | 16 | 3 | 0.338 | 16 | 60 | 1320 | 330 | |
MF72-20D13 | 20 | 3 | 0.372 | 16 | 65 | 1320 | 330 | |
MF72-30D13 | 30 | 2.5 | 0.517 | 16 | 65 | 1320 | 330 | |
MF72-47D13 | 47 | 2 | 0.810 | 17 | 65 | 880 | 220 | |
MF72-120D13 | 120 | 1.2 | 2.124 | 16 | 65 | 880 | 220 | |
MF72-1.3D15 | 1.3 | 8 | 0.048 | 18 | 68 | 1320 | 330 | |
MF72-1.5D15 | 1.5 | 8 | 0.052 | 19 | 69 | 1320 | 330 | |
MF72-3D15 | 3 | 7 | 0.075 | 18 | 76 | 1320 | 330 | |
MF72-5D15 | 5 | 6 | 0.112 | 20 | 76 | 1880 | 470 | |
MF72-6D15 | 6 | 5 | 0.155 | 20 | 80 | 1880 | 470 | |
MF72-7D15 | 7 | 5 | 0.173 | 20 | 80 | 1880 | 470 | |
MF72-8D15 | 8 | 5 | 0.178 | 20 | 80 | 1880 | 470 | |
MF72-10D15 | 10 | 5 | 0.180 | 20 | 75 | 1880 | 470 | |
MF72-12D15 | 12 | 4 | 0.250 | 20 | 75 | 1880 | 470 | |
MF72-15D15 | 15 | 4 | 0.268 | 21 | 85 | 1880 | 470 | |
MF72-16D15 | 16 | 4 | 0.276 | 21 | 70 | 1880 | 470 | |
MF72-20D15 | 20 | 4 | 0.288 | 17 | 86 | 1880 | 470 | |
MF72-30D15 | 30 | 3.5 | 0.438 | 18 | 75 | 1320 | 330 | |
MF72-47D15 | 47 | 3 | 0.680 | 21 | 86 | 1320 | 330 | |
MF72-120D15 | 120 | 1.8 | 1.652 | 22 | 87 | 1320 | 330 | |
MF72-0.7D20 | 0.7 | 11 | 0.018 | 25 | 89 | 1880 | 470 | |
MF72-1.3D20 | 1.3 | 9 | 0.037 | 24 | 88 | 1880 | 470 | |
MF72-3D20 | 3 | 8 | 0.055 | 24 | 88 | 1880 | 470 | |
MF72-5D20 | 5 | 7 | 0.087 | 23 | 87 | 2240 | 560 | |
MF72-6D20 | 6 | 6 | 0.113 | 25 | 103 | 2240 | 560 | |
MF72-8D20 | 8 | 6 | 0.142 | 25 | 105 | 2240 | 560 | |
MF72-10D20 | 10 | 6 | 0.162 | 24 | 102 | 2240 | 560 | |
MF72-12D20 | 12 | 5 | 0.195 | 24 | 100 | 2720 | 680 | |
MF72-16D20 | 16 | 5 | 0.212 | 25 | 100 | 2720 | 680 | |
MF72-0.7D25 | 0.7 | 12 | 0.014 | 30 | 120 | 2240 | 560 | |
MF72-1.5D25 | 1.5 | 10 | 0.027 | 30 | 121 | 2240 | 560 | |
MF72-3D25 | 3 | 9 | 0.044 | 32 | 124 | 2240 | 560 | |
MF72-5D25 | 5 | 8 | 0.070 | 32 | 125 | 2720 | 680 | |
MF72-8D25 | 8 | 7 | 0.114 | 33 | 125 | 2720 | 680 | |
MF72-10D25 | 10 | 7 | 0.130 | 32 | 125 | 2720 | 680 | |
MF72-12D25 | 12 | 6 | 0.156 | 32 | 126 | 3280 | 820 | |
MF72-16D25 | 16 | 6 | 0.160 | 35 | 126 | 3280 | 820 |
Note: Unless otherwise specified, the allowable tolerance of R25 is
+/- 20%
Specifications may change without notice.
6. Package
Bulk
Series | Quantity/poly bag |
MF72- D5 | 1000 |
MF72- D7 | 1000 |
MF72- D9 | 1000 |
MF72- D11 | 500 |
MF72- D13 | 500 |
MF72- D15 | 500 |
MF72- D20 | 250 |
MF72- D25 | 250 |
7. Storage Condtions
Do not exposing the components to the following conditions, otherwise, it may result in deterioration of characteristics.
1) Corrosive gas or deoxidizing gas.
2) Flammable and explosive gases.
3) Oil, water and chemical liquid.
4) Under the sunlight.
Do not apply the components under the following conditions, otherwise, it may result in deterioration of characteristics, destruction of components or in the worst case, to catching fire.
Guangdong Uchi Electronics Co.,Ltd
Uchi was established in 2006 in Dongguan, China.
After years of development, Uchi has become a large scale hi-tech
enterprise that specialized in development and production of
complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL
TYPE),Resistor、integrated circuit 、 Capacitor, surge protector and
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China's leading enterprise of circuit protection components
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Factory Tour :
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Exquisite quality at customers' favor
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Metal Oxide Varistor
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CDS Photoconductive Cell
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Cooperation with good faiths to win in the market.
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In the future Uchi will still stick to the tenets of "Quality
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