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    5V DC 20A 100W Switching Power Supply

    $46.15
    5V DC, 100W switching power supply can convert full range AC (selected by switch) to DC, current rating to 10A. Cheap and reliable SMPS power supply for wide applications like LED lamps, security cameras, communications equipment, industrial control, and household appliances.
    SKU: ATO-SMPS-100-5
    Free shipping
    Delivery date: 6-12 days

    Features

    • Universal AC input range selectable by a switch
    • Protections: short circuit and overload
    • Cooling by free air convection
    • LED indicator for power on
    • 100% full load burn-in test
    • Low cost and high reliability

    SMPS Power Supply Applications

    • Power Tools
      Electric Saw, Drilling Machine, Ginder, Sand Blast Machine, Puching Machine, Weeding Machine, Air Compressor, etc.
    • Offices Devices
      Computer, Printer, LCD Monitor, Scanning Machine, etc.
    • Electrics & Household Appliance
      TV, VCRS, Radio, Dust Collector, Fan Lamp or LED Strip, Sewing Machine, Microwave Oven, Fridge/Freezr, Coffemarker, etc.
    • Industrial Equipemnt
      Monitoring Equipment, Shipping, Vehicle, Metalhalide Lamp, Solar System, Wind Power Generation, etc.

    5V DC 20A 100W SMPS Specification

    Model ATO-S-100-5
    Output
    DC Voltage 5V
    Rated Current 20A
    Current Range 0 ~ 20A
    Rated Power 100W
    Ripple & Noise (Max.)(Note 2) 100mVp-p
    Voltage Adjust Range 4.75 ~ 5.5V
    Voltage Tolerance (Note 3) ±2.0%
    Line Regulation ±0.5%
    Load Regulation ±0.5%
    Setup, Rise, Holdup Time 200ms, 80ms, 20ms at full load
    Input Voltage Range 85 ~ 132VAC/180V~264VAC (selected by a switch) or 255 ~ 370VDC
    Frequency Range 47~63Hz
    Efficiency (Typ.) 78%
    AC Current (Typ.) 2.4A/115V AC 1.2A/230V AC
    Inrush Current (Typ.) Cold start: 30A/115V AC 60A/230V AC
    Leakage Current <1mA/240V AC
    Protection Overload 105~150% rated output power
    Protection type: Shut down output voltage, re-power on to recover.
    Environment Working Temperature -10 ~ +60℃
    Working Humidity 20~90% RH non-condensing
    Storage Temperature -20~+85℃
    Storage Humidity 10~95% RH non-condensing
    Temperature Coefficient ±0.03%/℃ (0~50℃)
    Vibration 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
    Safety & EMC (Note 4) Safety Standards UL1012 Approved
    Withstand Voltage I/P-O/P: 1.5KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
    Isolation Resistance I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/70% RH
    EMC Emission Compliance to FCC Part 15 J conduction Class B
    Others MTBF ≥322.4K hrs MIN. MIL-HDBK-217F (25℃)
    Dimension 199*98*38mm (L*W*H)
    Weight 0.63kg
    Note 1. All parameters NOT specially mentioned are measured at 230V AC input, rated load and 25°C of ambient temperature.
    2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
    3. Tolerance includes set up tolerance, line regulation and load regulation.
    4. The switching power supply is considered a component which will be installed into final equipment. Please make sure that the final equipment still meets EMC directives.

    100W SMPS Dimension

    100W switch-mode power supply dimensionSMPS terminal pin number assignment
    Tips: Working principles of switching power supply

    In simple words, switching power supply operates by the following working principles:

    1. AC is rectified and smoothed to DC.
    2. Output the DC to primary level of switch transformer by high-frequency signal control switch.
    3. Primary level of the switching transformer detects high-frequency voltage and supply the voltage to load through rectification and smoothing process.
    4. The output system sends feedbacks to the control circuit through certain circuits to regulate current output by controlling occupation ratio of PWM.

    AC needs to go through the choking coil when being input. Switching power supply is used to filter noise wave of power grid and prevent power supply from outputting noise waves to the power grid. If the power stays the same, higher frequency of the switch will indicate smaller size of switch transformer and higher requirement for switch tube. To meet requirements for output, secondary level of the switch transformer is composed of several windings or just one winding with several taps. Generally speaking, the switch transformer is often equipped with protective circuit to protect switching power supply from idle load or short circuit, or the power supply may be burned out.

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