High Power φ15mm NTC Thermistor | Supports 470μF @240Vac Capacitive Load | Ideal for Heavy-Duty Inrush Protection
The MF72-NTC**D-15 series is engineered for inrush current protection in heavy-load circuits. With a 15mm ceramic disc, this series supports up to 8A rated current and up to 470μF input capacitors at 240Vac. High thermal time constants (up to 86s) and dissipation factors (up to 21mW/°C) make this series highly reliable for robust surge protection.
| 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-NTC1.5D-15 | 1.5 | 8 | 52 | 19 | 69 | 470 |
| MF72-NTC2.5D-15 | 2.5 | 7 | 62 | 21 | 85 | 470 |
| MF72-NTC3D-15 | 3 | 7 | 75 | 18 | 76 | 470 |
| MF72-NTC5D-15 | 5 | 6 | 112 | 20 | 76 | 470 |
| MF72-NTC8D-15 | 8 | 5 | 178 | 20 | 80 | 470 |
| MF72-NTC10D-15 | 10 | 5 | 180 | 20 | 75 | 470 |
| MF72-NTC15D-15 | 15 | 4 | 268 | 21 | 85 | 470 |
| MF72-NTC18D-15 | 18 | 3.5 | 100 | 21 | 85 | 470 |
| MF72-NTC20D-15 | 20 | 3.5 | 287 | 20 | 80 | 470 |
| MF72-NTC30D-15 | 30 | 3.5 | 438 | 21 | 75 | 470 |
| MF72-NTC47D-15 | 47 | 3 | 680 | 21 | 86 | 470 |
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