SCK Ametherm Amphenol Cross Inrush NTC Power Thermistor MF73T
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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