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Address: No.1, Yixiang ,Liwu Industrial Park,Liwuyuan Village,Xihu District, Shilong Town,Dongguan 523325,Guangdong ,China
Contact name:James Lai
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SCK Ametherm Amphenol Cross Inrush Negative Temperature NTC Type Power Thermistor MF73T
Short overview Of The NTC Type Power Thermistor MF73T
R25(Ω): 0.2～400
Imax(A): 40A
[Product Features] Small size, high power, strong ability to
suppress surge current
[Product use] High-power switching power supply, conversion power
supply, UPS power supply
Features Of The NTC Type Power Thermistor MF73T
● Small size, high power, strong ability to suppress surge current.
● The material constant (B value) is large, the residual resistance is small, and its own power consumption is small.
● Large current, long life, high reliability.
● Easy to install the circuit board, complete series and wide application range.
Application Scope Of The NTC Type Power Thermistor MF73T
High-power switching power supply, conversion power supply, UPS
power supply.
High-power battery chargers, electric car chargers.
High-power LED lights, high-power electronic energy-saving lamps
and other lighting fixtures.
Size Of The NTC Type Power Thermistor MF73T (mm)
MF73T-1
| Body size | Φ3 | Φ5 | Φ8 | Φ10 | Φ13 | Φ15 | Φ20 | Φ25 | Φ30 | Φ35 | Φ40 |
| Diameter (Dmax) | 4.5 | 7 | 11 | 13 | 15.5 | 17.5 | 22.5 | 29 | 35 | 40 | 45 |
| Thickness (Tmax) | 4.5 | 5 | 5.5 | 5.5 | 6 | 6 | 7 | 8 | 10 | 12 | 12 |
| Pitch (F±1) | 2.5 | 2.5 | 7.5 | 7.5 | 7.5 | 7.5 | 10 | 10 | 18±1 .5 | 18±1.5 | 18±1.5l |
| Lead diameter (d±0.05) | 0.45 | 0.45 | 0.8 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1.6 | 2 | 2.0(26) |
| Lead length (L)min | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Lead length (L1)min | / | / | 17 | 17 | 17 | 17 | 17 | 17 | / | / | / |
| Regular lead Shape | (II) straight | (II) straight | (I) inside kink | (I) inside kink | (I) inside kink | (I ) inside kink | (II) straight | (II) straight | (II) straight | (II) straight | (II) straight |
| Special lead Shape | / | / | (II) straight | (II) straight | (II) straight | (II ) straight | ( III) outside kink | ( III) Outside kink |
MF73T-2
| Body size | Φ20 | Φ25 | Φ30 | Φ35 | Φ40 |
| (Dmax)/Diameter | 22.5 | 29 | 35 | 40 | 45 |
| (Tmax)/Thickness | 10 | 12 | 15 | 18 | 18 |
| (F)/Pitch | 10.0 | 10.0 | 18 | 18 | 18 |
| (d±0.05)/Lead diameter | 1.2 | 1.2 | 1.6 | 2 | 2.0/2.6 |
| (L)/Lead length min | 17 | 17 | 17 | 17 | 17 |
| Height (A) max | 38 | 40 | 55 | 58 | 60 |
| Normal lead structure | Y Kink | ||||
Note: 2.6mm lead would be applied when Imax is above 32A for D40
Specification Of The NTC Type Power Thermistor MF73T
Part No MF73T
| Max Steady State Current(A) | Approx.R of Max.Cur.(Ω ) | Operating Temp.(℃ ) | Max surge capactiance current 240V/vc |
| Φ3 | 0.3~2 | 0.493~7.346 | -140 ±150 | 47~100 |
| Φ5 | 0.3~3.5 | 0.920~16.1 | -140 ±150 | 47~110 |
| Φ8 | 0.5~7 | 0.032~9.956 | -140 ±170 | 100~220 |
| Φ10 | 1.3~8 | 0.041~2.895 | -140 ±170 | 220~470 |
| Φ13 | 1.8~9 | 0.032~0.994 | -140 ±200 | 560~680 |
| Φ15 | 2.5~11 | 0.024~0.652 | -140 ±200 | 680~1000 |
| Φ20 | 3~16 | 0.026~0.047 | -140 ±200 | 1000~3000 |
| Φ25 | 8~22 | 0.017~0.132 | -140 ±200 | 1200~3500 |
| Φ30 | 9~30 | 0.013~0.133 | -140 ±200 | 1500~4700 |
| Φ35 | 10~ 32 | 0.01~0.089 | -140 ±200 | 2200~4700 |
| Φ40 | 13~40 | 0.005~0.074 | -140 ±200 | 3000~8000 |
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