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    5V DC 20A 100W Switching Power Supply

    5VDC, 100W Switching power supply can transform full range of AC which can be selected by switch, rating current to 10A. Cheap and great switching power supply has high reliability with industry standards.
    SKU: ATOS-100-5
    Free shipping
    Delivery date: 6-12 days


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


    Basics Model ATOS-100-5
    Dimension 199*98*38mm (L*W*H)
    Weight 0.65kg
    MTBF 314.9K hrs min. MIL-HDBK-217F (25 °C)
    Output DC Voltage 5V
    Rated Current 20A
    Current Range 0~20A
    Rated Power 100W
    Ripple & Noise (max.)( Note 2) 100mVp-p
    Voltage Adjust Range 4.5~5.5V
    Voltage Tolerance (Note 3) ±2.0%
    Line Regulation ±0.5%
    Load Regulation ±1.0%
    Setup, Rise, Holdup time(Typ.) 1000ms, 30ms, 20ms at full load
    Input Voltage Range 88~132V AC/176~264V AC(selected by jumper or switch) or 248~370V DC
    Frequency Range 47~63Hz
    Efficiency(Typ.) 76%
    AC Current(Typ.) 3.15A/115V AC; 1.5A/230V AC
    Inrush Current (Typ.) Cold start, 20A/115V AC; 40A/230V AC
    Leakage Current <1mA / 240V AC
    Protection Overload 105~150% rated output power
    Protection type: Hiccup mode, recovering automatically after fault condition is removed.
    Overvoltage 5.75V~6.75V
    Protection type: Hiccup mode, recovering automatically after fault condition is removed.
    Safety & EMC Safety Standards Approved by Ul1012, UL60950-1, TUV EN60950-1, CCC GB4943
    Withstand Voltage I/P-O/P: 1.5KV AC I/P-FG: 1.5KV AC O/P-FG: 0.5KV AC
    Isolation Resistance I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500V DC/ 25°C / 70% RH
    EMC Emission Compliance to EN55022 (CISPR22) Class B, EN61000-3-2, -3
    EMC Immunity Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, light industry level, criteria A
    Environment Working Temperature -10 ~ +60°C (Refer to Derating Curve)
    Working Humidity 20~90% RH (non-condensing)
    Storage Temperature -20~+85°C
    Humidity 10~95% RH (non-condensing)
    Temperature Coefficient ±0.03%/°C (0~50°C)
    Vibration 10 ~ 500Hz, 2G 10min./1 cycle, period for 60min. each along X, Y, Z axes
    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 SDPS Dimensions

    Derating Curve & Static Characteristics
    Derating Curve Static Characteristics

    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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