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Inrush Current Limiting Power NTC Thermistors For Switch Mode Power Supply

Dongguan Uchi Electronics Co.,Ltd.
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    Buy cheap Inrush Current Limiting Power NTC Thermistors For Switch Mode Power Supply from wholesalers
     
    Buy cheap Inrush Current Limiting Power NTC Thermistors For Switch Mode Power Supply from wholesalers
    • Buy cheap Inrush Current Limiting Power NTC Thermistors For Switch Mode Power Supply from wholesalers

    Inrush Current Limiting Power NTC Thermistors For Switch Mode Power Supply

    Ask Lasest Price
    Brand Name : UCHI
    Certification : UL.VDE.SGS.
    Model Number : MF72
    Price : Negotiable
    Delivery Time : 3~5 working days
    Payment Terms : T/T,Paypal,Western Union,Money gram
    Supply Ability : 8000,000,000PCS Per Month
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    Inrush Current Limiting Power NTC Thermistors For Switch Mode Power Supply

    Inrush Current Limiting Power NTC Thermistors For Switch Mode Power Supply


    Quick Detail:


    ·Low cost solid state device for inrush current supression.
    ·Minimise line current distortion and radio noise.
    ·Protect switches, rectifier diodes and smoothing capacitors against premature failures.
    ·Prevent fuse from blowing in error.


    Description:


    Power NTC thermistor can be a cost effective device to limit the amount of inrush current in a switching power supply or other devices when the power is first turned on. Power NTC thermistor limits surge current by functioning as a power resistor which drops from a high cold resistance to a low hot resistance when heated by the current flowing through it.
    Inrush-current limiters power NTC thermistor protect circuits from undesirably high currents, suppressing high inrush current surges, while its resistance remains negligible low during continuous operation. Thanks to their low resistance in the operating state, Power thermistor have a considerably lower power dissipation than the fixed resistors frequently used for this application.


    Applications:


    Limiting surge current, suitable for the protection of switch mode power supply, UPS power, transformers, motors, various electric heating utensil, energy saving lights, ballast, various power circuit, amplifiers, colored displayer, monitors, color TV, filament protection, etc.
    Power thermistor components can also be used for the soft starting of motors, for example in vacuum cleaners with continuous currents of up to 20 A.


    Specifications:


    Inrush Current Limiting Power NTC Thermistor Features:

    ·Resin coated disk thermistor with uninsulated lead-wires.
    ·Suitable for both AC and DC circuits up to a voltage of 265 V(rms).
    ·Wide range of resistance, current and dimension.
    ·Excellent mechanical strength.
    ·Suitable for PCB mounting.


    Comparison curve with and without Inrush Current Limiting power NTC thermistor

    Inrush Current Limiting Power NTC thermistor
    Load-temperature characteristics
    Typical Application of Inrush Current Limiting Power NTC thermistors for Circuit Protection

    Basic circuit diagram NTC thermistor for diode protection


    Possible locations of NTC Thermistors inrush current limiters


    Typical power supply circuit


    Power NTC thermistors application circuits


    Another example NTC Thermistor for inrush current protection circuit


    Inrush Current Limiting Power NTC Thermistors Dimensions (mm)

    Inrush Current Limiting Power NTC Thermistors Data Sheet


    Part No.

    R25
    (ohm)

    Max
    Stable
    Current
    (A)

    Approx.
    Resistance
    value at
    max current
    (Ω)

    Dissipation
    Factor
    (mW/oC)

    Thermal
    Time
    Constant
    (sec)

    Dimensions (mm)

    Dmax

    Tmax

    H

    H 0

    d±1

    MF72-3D9

    3 ohm

    4A

    0.120

    11

    34

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-5D9

    5 ohm

    3A

    0.210

    11

    34

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-8D9

    8 ohm

    2A

    0.400

    11

    32

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-10D9

    10 ohm

    2A

    0.458

    11

    32

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-16D9

    16 ohm

    1A

    0.802

    11

    31

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-22D9

    22 ohm

    1A

    0.950

    11

    30

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-33D9

    33 ohm

    1A

    1.124

    11

    30

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-50D9

    50 ohm

    1A

    1.252

    11

    30

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-80D9

    80 ohm

    0.8A

    2.010

    11

    30

    11

    5.5

    13.5

    20.5

    7.5 /5

    MF72-3D11

    3 ohm

    5A

    0.100

    13

    43

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-5D11

    5 ohm

    4A

    0.156

    13

    45

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-8D11

    8 ohm

    3A

    0.255

    14

    47

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-10D11

    10 ohm

    3A

    0.275

    14

    47

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-12D11

    12 ohm

    2A

    0.462

    14

    48

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-16D11

    16 ohm

    2A

    0.470

    14

    50

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-20D11

    20 ohm

    2A

    0.512

    15

    52

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-22D11

    22 ohm

    2A

    0.563

    15

    52

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-33D11

    33 ohm

    1.5A

    0.734

    15

    52

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-50D11

    50 ohm

    1.5A

    1.021

    15

    52

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-60D11

    60 ohm

    1.5A

    1.215

    15

    52

    13

    5.5

    15.5

    22.5

    7.5 /5

    MF72-1.3D13

    1.3 ohm

    7A

    0.062

    13

    60

    15.5

    6

    17.5

    24.5

    7.5

    MF72-3D13

    3 ohm

    6A

    0.092

    14

    60

    15.5

    6

    17.5

    24.5

    7.5

    MF72-5D13

    5 ohm

    5A

    0.125

    15

    68

    15.5

    6

    17.5

    24.5

    7.5

    MF72-10D13

    10 ohm

    4A

    0.206

    15

    65

    15.5

    6

    17.5

    24.5

    7.5

    MF72-15D13

    15 ohm

    3A

    0.335

    16

    60

    15.5

    6

    17.5

    24.5

    7.5

    MF72-30D13

    30 ohm

    2.5A

    0.517

    16

    65

    15.5

    6

    17.5

    24.5

    7.5

    MF72-47D13

    47 ohm

    2A

    0.810

    17

    65

    15.5

    6

    17.5

    24.5

    7.5

    MF72-1.3D15

    1.3 ohm

    8A

    0.048

    18

    68

    17.5

    6

    19.5

    26.5

    10/7.5

    MF72-1.5D15

    1.5 ohm

    8A

    0.052

    18

    69

    17.5

    6

    19.5

    26.5

    10/7.5

    MF72-3D15

    3 ohm

    7A

    0.075

    18

    76

    17.5

    6

    19.5

    26.5

    10/7.5

    MF72-5D15

    5 ohm

    6A

    0.112

    20

    76

    17.5

    6

    19.5

    26.5

    10/7.5

    MF72-8D15

    8 ohm

    5A

    0.178

    20

    80

    17.5

    6

    19.5

    26.5

    10/7.5

    MF72-10D15

    10 ohm

    5A

    0.180

    21

    85

    17.5

    6

    19.5

    26.5

    10/7.5

    MF72-15D15

    15 ohm

    4A

    0.268

    20

    75

    17.5

    6

    19.5

    26.5

    10/7.5

    MF72-30D15

    30 ohm

    3.5A

    0.438

    18

    75

    17.5

    6

    19.5

    26.5

    10/7.5

    MF72-47D15

    47 ohm

    3A

    0.680

    21

    86

    17.5

    6

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