NTC resistance switch thermistor MF72 series (0.7D-25)
Specification
| Zero Power Resistance at 25degC | 0.7Ohm |
| Resistance Tolerance | -/+10% |
| B Value | 3300K |
| Rated Power | 17mw |
| Operating Temperature | -40ºC~200ºC |
| Temperature Coefficient | </= 21 |
| Thermal Time Constant | 31S |
| Max. Shock Capacity | 680 |
| Max Steady State Current | 1A |
| Diameter | 25mm |
| Color | Black |
| Technology | Ceramic Composition |
| Type | Thermal Resistor |
| Feature Type | Carbon Film Resistor |
| Usage | Transforming powers,switching powers,UPS powers,heaters,electronic energy saving lamps,electronic ballasts.etc |
General Introduction
Power NTC thermistor is a advice that can suppress inrush current during powering on to protect electrical devices from being destroyed.
Usage
It is wildly used in transforming powers,switching powers,UPS powers,heaters,electronic energy saving lamps,electronic ballasts,electronic power circuit protection, and filaments in colorful display tube,incandescent and other lights.
Feature
1.Small size, powerful power,stronger suppressing inrush current capacity.
2.Fast responding speed,long span life,stability and credibility
3.B value is higher
4.All kinds of series is available and cover wildly.
Size
Model | D | L | F | T | d |
| Max | Min | ±1 | Max | ±0.06 |
| D-5 | 6.5 | 25 | 5/2.5 | 5 | 0.6/0.45 |
| D-7 | 8.5 | 25 | 5 | 5 | 0.6 |
| D-9 | 10.5 | 25 | 7.5/5 | 5 | 0.8/0.6 |
| D-11 | 12.5 | 25 | 7.5/5 | 5 | 0.8/0.6 |
| D-13 | 14.5 | 25 | 7.5 | 6 | 0.8/0.6 |
| D-15 | 16.5 | 25 | 10/7.5 | 6 | 0.8 |
| D-20 | 22.5 | 25 | 10/7.5 | 7 | 1.0 |
| D-25 | 26.5 | 25 | 10 | 8 | 1.0 |
Parameter
| Model | Rated R | Max Steady State Current | Residual R | Power Dissipation | Time Constant |
| (Ω) | (A) | (Ω) | (mW/ºC) | (S) |
| 5D-5 | 5 | 1 | 0.318 | 9 | 18 |
| 10D-5 | 10 | 0.7 | 0.694 | 9 | 18 |
| 60D-5 | 60 | 0.5 | 1.690 | 9 | 17 |
| 200D-5 | 200 | 0.1 | 5.633 | 9 | 16 |
| 5D-7 | 5 | 2 | 0.255 | 14 | 27 |
| 8D-7 | 8 | 1 | 0.485 | 12 | 27 |
| 10D-7 | 10 | 1 | 0.554 | 12 | 28 |
| 12D-7 | 12 | 1 | 0.734 | 12 | 28 |
| 16D-7 | 16 | 0.7 | 0.903 | 12 | 28 |
| 22D-7 | 22 | 0.6 | 0.997 | 12 | 25 |
| 33D-7 | 33 | 0.5 | 1.337 | 13 | 26 |
| 200D-7 | 200 | 0.2 | 5.610 | 14 | 26 |
| 3D-9 | 3 | 4 | 0.108 | 15 | 28 |
| 4D-9 | 4 | 3 | 0171 | 15 | 28 |
| 5D-9 | 5 | 3 | 0.189 | 15 | 29 |
| 6D-9 | 6 | 2 | 0.194 | 15 | 28 |
| 8D-9 | 8 | 2 | 0.360 | 15 | 30 |
| 10D-9 | 10 | 2 | 0.412 | 15 | 30 |
| 12D-9 | 12 | 1 | 0.587 | 15 | 30 |
| 16D-9 | 16 | 1 | 0.722 | 15 | 31 |
| 20D-9 | 20 | 1 | 0.724 | 15 | 30 |
| 22D-9 | 22 | 1 | 0.855 | 15 | 30 |
| 30D-9 | 30 | 1 | 0.920 | 15 | 31 |
| 33D-9 | 33 | 1 | 1.012 | 15 | 31 |
| 50D-9 | 50 | 1 | 0.125 | 15 | 31 |
| 60D-9 | 60 | 0.8 | 0.352 | 15 | 30 |
| 80D-9 | 80 | 0.8 | 1.809 | 15 | 31 |
| 120D-9 | 120 | 0.8 | 2.714 | 15 | 30 |
| 200D-9 | 200 | 0.5 | 4.506 | 15 | 30 |
| 400D-9 | 400 | 0.2 | 8.868 | 15 | 30 |
| 2.5D-11 | 2.5 | 5 | 0.086 | 17 | 43 |
| 3D-11 | 3 | 5 | 0.900 | 17 | 45 |
| 4D-11 | 4 | 4 | 0.135 | 17 | 45 |
| 5DD-11 | 5 | 4 | 0.140 | 17 | 46 |
| 6D-11 | 6 | 3 | 0.216 | 17 | 46 |
| 8D-11 | 8 | 3 | 0.230 | 17 | 46 |
| 10D-11 | 10 | 3 | 0.248 | 17 | 46 |
| 12D-11 | 12 | 2 | 0.416 | 18 | 46 |
| 16D-11 | 16 | 2 | 0.423 | 18 | 47 |
| Model | Rated R | Max Steady State Current | Residual R | Power Dissipation | Time Constant |
| (Ω) | (A) | (Ω) | (mW/ºC) | (S) |
| 20D-11 | 20 | 2 | 0.461 | 18 | 47 |
| 22D-11 | 22 | 2 | 0.507 | 19 | 48 |
| 30D-11 | 30 | 1.5 | 0.600 | 19 | 48 |
| 33D-11 | 33 | 1.5 | 0.661 | 19 | 48 |
| 50D-11 | 50 | 1.5 | 0.919 | 19 | 50 |
| 60D-11 | 60 | 1.5 | 1.094 | 19 | 50 |
| 80D-11 | 80 | 1.2 | 1.490 | 19 | 50 |
| 1.3D-13 | 1.3 | 7 | 0.056 | 18 | 60 |
| 1.5D-13 | 1.5 | 7 | 0.066 | 18 | 62 |
| 2.5D-13 | 2.5 | 6 | 0.079 | 18 | 62 |
| 3D-13 | 3 | 6 | 0.083 | 18 | 62 |
| 4D-13 | 4 | 5 | 0.108 | 20 | 63 |
| 5D-13 | 5 | 5 | 0.113 | 20 | 64 |
| 6D-13 | 6 | 4 | 0.153 | 20 | 64 |
| 7D-13 | 7 | 4 | 0.169 | 20 | 62 |
| 8D-13 | 8 | 4 | 0.175 | 20 | 62 |
| 10D-13 | 10 | 4 | 0.185 | 20 | 62 |
| 12D-13 | 12 | 3 | 0.284 | 21 | 63 |
| 15D-13 | 15 | 3 | 0.303 | 21 | 63 |
| 16D-13 | 16 | 3 | 0.304 | 21 | 62 |
| 20D-13 | 20 | 3 | 0.335 | 21 | 62 |
| 30D-13 | 30 | 2.5 | 0.465 | 21 | 62 |
| 47D-13 | 47 | 2 | 0.729 | 21 | 63 |
| 120D-13 | 120 | 1.5 | 1.912 | 21 | 63 |
| Model | Rated R | Max Steady State Current | Residual R | Power Dissipation | Time Constant |
| (Ω) | (A) | (Ω) | (mW/ºC) | (S) |
| 1.3D-15 | 1.3 | 8 | 0.043 | 21 | 76 |
| 1.5D-15 | 1.5 | 8 | 0.067 | 25 | 76 |
| 3D-15 | 3 | 7 | 0.680 | 25 | 80 |
| 5D-15 | 5 | 6 | 0.101 | 25 | 81 |
| 6D-15 | 6 | 5 | 0.140 | 25 | 82 |
| 7D-15 | 7 | 5 | 0.156 | 25 | 82 |
| 8D-15 | 8 | 5 | 0.160 | 25 | 80 |
| 10D-15 | 10 | 5 | 0.162 | 25 | 78 |
| 12D-15 | 12 | 4 | 0.225 | 25 | 75 |
| 15D-15 | 15 | 4 | 0.234 | 25 | 83 |
| 16D-15 | 16 | 4 | 0.248 | 25 | 84 |
| 20D-15 | 20 | 4 | 0.259 | 25 | 83 |
| 30D-15 | 30 | 3.5 | 0.394 | 25 | 83 |
| 47D-15 | 47 | 3 | 0.612 | 25 | 84 |
| 120D-15 | 120 | 2.5 | 1.482 | 25 | 85 |
| 0.7D-20 | 0.7 | 12 | 0.016 | 31 | 85 |
| 1.3D-20 | 1.3 | 9 | 0.033 | 31 | 99 |
| 3D-20 | 3 | 8 | 0.049 | 31 | 102 |
| 5D-20 | 5 | 7 | 0.078 | 31 | 103 |
| 6D-20 | 6 | 6 | 0.102 | 31 | 100 |
| 8D-20 | 8 | 6 | 0.128 | 31 | 97 |
| 10D-20 | 10 | 6 | 0.146 | 30 | 97 |
| 12D-20 | 12 | 5 | 0.176 | 30 | 98 |
| 16D-20 | 16 | 5 | 0.191 | 30 | 98 |
| Model | Rated R | Max Steady State Current | Residual R | Power Dissipation | Time Constant |
| (Ω) | (A) | (Ω) | (mW/ºC) | (S) |
| 0.7D-25 | 0.7 | 13 | 0.013 | 36 | 124 |
| 1.5D-25 | 1.5 | 10 | 0.024 | 36 | 124 |
| 3D-25 | 3 | 9 | 0.039 | 38 | 124 |
| 5D-25 | 5 | 8 | 0.063 | 38 | 123 |
| 8D-25 | 8 | 7 | 0.103 | 38 | 123 |
| 10D-25 | 10 | 7 | 0.117 | 38 | 124 |
| 12D-25 | 12 | 6 | 0.140 | 38 | 125 |
| 16D-25 | 16 | 6 | 0.044 | 40 | 125 |