Sign In | Join Free | My himfr.com
Home > Power NTC Thermistor >

1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply

Dongguan Ampfort Electronics Co., Ltd.
Trust Seal
Verified Supplier
Credit Check
Supplier Assessment
Contact Now
    Buy cheap 1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply from wholesalers
     
    Buy cheap 1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply from wholesalers
    • Buy cheap 1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply from wholesalers
    • Buy cheap 1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply from wholesalers
    • Buy cheap 1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply from wholesalers
    • Buy cheap 1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply from wholesalers
    • Buy cheap 1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply from wholesalers

    1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply

    Ask Lasest Price
    Brand Name : AMPFORT
    Model Number : MF71-1D-25MY
    Certification : UL
    Price : 0.5~1USD/PC
    Payment Terms : T/T, Western Union, MoneyGram
    Supply Ability : 500000pcs per day
    Delivery Time : 10 workdays
    • Product Details
    • Company Profile

    1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply


    High Inrush Current Power NTC Thermistor MF71 1D-25 1Ohm 25mm 20A For Switching Power Supply


    Description Of The Power NTC Thermistor MF71 1D-25 1Ohm 25mm 20A


    * NTC Thermistor is a kind of resistor with negative temperature coefficient.It's resistance decreases with the temperature rising. According to its different uses, the thermistor may be packaged in various forms with different performances.

    * MF71 Series Thermistor was applied to restrain surge current and protect overvoltage in various power supplies,IC,circuit.

    * MF11 Series thermistor are widely applied to compensate temperature variation and measure temperature


    Size Of The Power NTC Thermistor MF71 1D-25 1Ohm 25mm 20A (mm)


    MODELDmaxP±1d±0.05AminTmax
    MF71-1D-25MY307.5/101.078

    Electrical Characteristic Of The Power NTC Thermistor MF71 1D-25 1Ohm 25mm 20A


    Type

    1D-25
    Zero Power Resistance at 25℃
    1±20% ohm
    maximum steady state current at 25℃
    20A
    Capacitance at 240Vac
    1200μF (240V)
    Thermal Dissipation Constant (δ)
    ≧30 mw/℃
    Thermal Time constantτ(t)
    ≦130S
    Operation Temperature
    -40~+200℃
    Rating power (Pmax)
    7.0W

    Performance Characteristics Of The Power NTC Thermistor MF71 1D-25 1Ohm 25mm 20A


    Item

    Test Methods

    Specifications

    Zero Power Resistance at 25℃

    Resistance shall be measured at DC current applied when the self heat generation does not occur at room ambient (25.0±0.2℃)

    1±20% ohm
    Thermal Dissipation Constant

    Equivalent to the required power to rise temperature of the thermistor up to 1℃ in the air and without cooling of airflow. the unit of the constant is mw/℃

    ≥30mw/℃
    Maximum allowable steady-state current (Imax)

    Maximum allowable steady-state DC current applied at the specified temperature without cooling of airflow

    20A
    Thermal Time constant

    The period of time when the temperature of the specimens is (1-1/e) times the temperature difference shall be measured when the ambient temperature is changed.(e:2.71828)

    ≤130S
    Voltage withstanding (Between Terminals and coating)

    An AC Voltage of 1000V shall be applied. Between the terminals and the insulating coating for one minute at room ambient.

    No substantial damage

    ΔR/R≤±20%

    Insulation Resistance (Between Terminals and coating)

    Insulation resistance between terminals and the insulating coating shall be measured at 1000Vdc with one minute electrification, and at room ambient.

    ≥500MΩ

    Packing Specification Of The Power NTC Thermistor MF71 1D-25 1Ohm 25mm 20A


    (PCS)

    Quantity of each inter-box

    (PCS)

    Quantity of each outer-box

    200Appr.2000

    Lead-free wave soldering process temp. Of The Power NTC Thermistor MF71 1D-25 1Ohm 25mm 20A


    1. Preheat temp.:100-120 ℃, Time:86-100/Sec, Heating rate:1-2 ℃/Sec
    2. Parts after preheating, into the 255-260 ℃ molten tin, immersion time:2.5-3.5/Sec

    3. Parts after welding cooling rate of 1-3 ℃/Sec
    4. Total welding time was 3.5Min.
    In order to ensure the parts had to withstand thermal shock wave soldering, specification of heat-resistant parts must be higher than the temperature curve of wave soldering temperature, the largest is above 260 ℃


    Storage Conditions Of The Power NTC Thermistor MF71 1D-25 1Ohm 25mm 20A


    1. Storage Temperature : -10℃~+40℃
    2. Relative Humidity : ≦75%RH
    3. Keep products away from corrosive such as sulfur, chlorine gas or acid, or it may cause oxidization of electrode, resulting in poor solderability
    4. The products can be used in two years under storage condition.

    1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply

    Quality 1 Ohm 20A High Inrush Current Power NTC Thermistor For Switching Power Supply for sale
    Inquiry Cart 0
    Send your message to this supplier
     
    *From:
    *To: Dongguan Ampfort Electronics Co., Ltd.
    *Subject:
    *Message:
    Characters Remaining: (0/3000)