7mm Disc Type NTC Thermistor for Surge Current Limiting in High Capacitance Circuits
The MF72-NTC**D-7 series is a disc-type NTC thermistor with a φ7mm ceramic body, designed for effective inrush current suppression. With higher dissipation and lower load resistance, it is ideal for circuits with large capacitive loads. It protects AC input power supplies and high-power LED drivers from startup surge damage, providing reliable circuit protection and extended system lifetime.
| Part Number | Resistance at 25℃ | Max. Permissible Working Current | Resistance under Load | Dissipation Factor | Thermal Time Constant | Maximum permissible capacitance @240Vac |
| R25 (Ω) ±20% | Imax (A) | (mΩ) | δ(mW/℃) | τ(Sec.) | C（uF） | |
| MF72-NTC3D-7 | 3 | 2 | 280 | 10 | 30 | 68 |
| MF72-NTC5D-7 | 5 | 2 | 283 | 10 | 30 | 78 |
| MF72-NTC8D-7 | 8 | 1 | 539 | 9 | 28 | 78 |
| MF72-NTC10D-7 | 10 | 1 | 616 | 9 | 27 | 78 |
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