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Output: Max Steady State Current
Theory: Current Sensor
Usage: Consumption Sensor
Brand Name: Nanjing Shiheng Electronic Technology Co., Ltd
material: medal
Model Number: MF72/73/73T/74/75
Place of Origin: China (Mainland)
Max Steady State Current: 0.1-12(A)
Dimensions(mm): 7-27.5(mm)
Approx.R of Max.Cur.: 0.014~18.70
Operating Temp.: -140
Max surge capacity(UF): 47~1200

Specifications

MF72 Power NTC Thermistor series 



Introduction

When you turn on An electrical equipment, the surge current can be restrained by a power NTC termistor 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't affect normal operating Current. Therefore, using power NTC thermistor is a most effectively and most brief measure to restrain surge current, protecting electrical Equipment from destruction.

 

Applications

Coversion power-supply, switch power-supply, UPS power-supply

Electronic energy saving lamps, electronic ballast and all kinds of electric heater

All kinds of RT, display

Bulb and other lighting lamps

 

Characteristics

 Small size, strong power and strong capability of surge current protection.

Fast response to surge current

Big material constant (B value), Small remain resistance

 Longevity of service. High reliability

Integral series, extensive operating range

 

Dimensions(mm)

Part No

Dim(mm)

Sym

D

max

T

max

d

±0.05

F1±1

Straight lead

Kinked lead






Lmin

L1min

L2±2

MF72D5

7

5

0.6/0.45

5

25

17/5

5

MF72D7

9

5

0.6

5

25

17/5

5

MF72D9

11

5.5

0.8/0.6

7.5

25

17/5

5

MF72D1I

13

5.5

0.8

7.5

25

17/5

5

MF72D13

15.5

6

0.8

7.5

25

17/5

5

MF72D15

17.5

6

0.8

7.5

25

17/5

5

MF72D20

22.5

7

1.0

10

25

/

/

MF72D25

27.5

8

1.0

10

25

/

 /


NTC ThermistorInrush Current LimiterpowerhighpowersuperpowerNTC ThermistorInrush Current Limiterpowerhighpowersuperpower

MAIN TECHNICAL PARAMETER  

Part No MF 72

 

Max Steady State Current(A)

Approx.R of Max.Cur.(Ω )

Operating Temp.( )

Maxsurge Capacity(UF)

240V/AC

D5

0.1~1

0.353~18.70

-140 ±150

47~100

D7

0.2~2

0.283~11.65

-140 ±150

68~150

D9

0.2~4

0.120~30.30

-140 ±170

47~220

D11

1.2~5

0.095~1.656

-140 ±170

150~470

D13

1.2~7

0.062~2.124

-140 ±200

220~560

D15

1.8~8

0.075~1.652

-140 ±200

330~680

D20

5~11

0.018~0.212

-140 ±200

680~1000

D25

6~12

0.014~0.160

-140 ±200

820~1200


MF73 High-power NTC Thermistor series




Characteristics

Reliable Configuration and convenient installment

Have the strongest capability of surge current protection and energy absorptionMaximum steady state operating current

 longevityof service,high reliability


 Applications

 All kinds of power supply,UPS power supply, Switching power supply

 EV charger,charging pile

 Motor driver,Superpower server motor driver,Logic controller

High power plasma electic welder,cutting machine, super power lighting lamp

Nuclear magnetic resonance equipment,super power audio power amplifier,high power circle transformer

the solar panel arrays with high capacity power inverter

the industrial robot drived by high voltage power supply,intelligent electric cabinet with low voltage


Dimensions(mm)

Curved

Body size

Φ40

Φ45

Φ50

Diameter(Dmax)

45

50

55

Thickness(Imax)

18

18

18

Pitth(F±15)

22.5

22.5

22.5

Lead length(L2)

20

20

20

Lead width(W±02

8

8

8

Lead thickness(H±0.1)

1.0

1.0

1.0


Straight
NTC ThermistorInrush Current Limiterpowerhighpowersuperpower


Body size 

Φ40 

Φ45 

Φ50 

Diameter(Dmax)

45

50

55

Thickness(TMax)

18

18

18

Pitch(F±15)

22.5

22.5

22.5

Lead length(L±2)

30

30

30

Lead width(W±0.2)

10

10

10

Lead thickness(H±0.1)

1

1

1

WidTh of lowLead(W1±0.2)

6

6

6


MAIN TECHNICAL PARAMETER      

Part No MF 73

 

Max Steady State Current(A)

Approx.R of Max.Cur.(Ω )

MaxSurgeCapacitanceCurrent

240V/vc

Operating Temp.( )

 Φ40

13~50

0.005~0.075

3300~8000


 Φ45

16~65

0.004~0.070

47000~11500


 Φ50

15~80

0.003~0.085

6800~15000


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