Superior Quality Switching Power Thermal Resistor NTC Thermistor 20D-9
Quick Detail:
• Small Size and fast response
• High Power handling capability
• Fast response to surge current
• High material constant (B value)
• Low residual resistance
• Wide operating temperature range -55 to +200C
• R25 allowable tolerance is ±20%
• Long-term Stability and Reliability
The NTC thermistor is a kind of semiconductor ceramic element that mostly made from transition metal oxide material, and belongs to negative temperature thermistors. When you tune on an electrical equipment ,the surge current can be restrained by a power NTC thermistor connected in series with the power circuit .Because of the continuing action of current, temperature of power NTC thermistor raising, the resistance will rapidly drop to a small value, the consumed power can be ignored. So it can not affect normal operating current. Therefore, using power NTC thermistor is a most effectively amd most brief measure to restrain surge current, protecting electrical equipment from destruction.
Product parameters
| model | Rated zero power resistance R25 (Ω) | Max.steady
State current(A) | Residual
Resistance(Ω) | B25/85
(K) | Themal time
Constant(s) | Dissipation factor(mw/℃) |
| 1.3D-13 | 1.3 | 7 | 0.089 | 2700 | ≤70 | ≥13 |
| 1.5D-13 | 1.5 | 7 | 0.089 | 2700 |
| 2.5D-13 | 2.5 | 6 | 0.108 | 2700 |
| 3D-13 | 3 | 6 | 0.145 | 2700 |
| 4D-13 | 4 | 5 | 0.146 | 2700 |
| 4.7D-13 | 4.7 | 5 | 0.147 | 2800 |
| 5D-13 | 5 | 5 | 0.15 | 2800 |
| 6D-13 | 6 | 4 | 0.211 | 2800 |
| 6.8D-13 | 6.8 | 4 | 0.228 | 3000 |
| 7D-13 | 7 | 4 | 0.232 | 3000 |
| 8D-13 | 8 | 4 | 0.275 | 3000 |
| 10D-13 | 10 | 4 | 0.272 | 3000 |
| 12D-13 | 12 | 3 | 0.483 | 3000 |
| 15D-13 | 15 | 3 | 0.488 | 3100 |
| 16D-13 | 16 | 3 | 0.454 | 3100 |
| 18D-13 | 18 | 3 | 0.511 | 3200 |
| 20D-13 | 20 | 3 | 0.568 | 3200 |
| 22D-13 | 22 | 3 | 0.581 | 3200 |
| 25D-13 | 25 | 2 | 0.625 | 3200 |
| 30D-13 | 30 | 2 | 0.696 | 3200 |
| 33D-13 | 33 | 2 | 0.765 | 3200 |
| 47D-13 | 47 | 2 | 1.091 | 3200 |
| 50D-13 | 50 | 2 | 1.161 | 3200 |
Product Tags:
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Quality Switching Power NTC Thermistor 20D-9 Fast Response Small Size Images
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