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    48V DC 2A 100W Switching Power Supply

    48V DC switching power supply converts universal AC input to DC output with rated current 2A. High performance and favorable price SMPS has a wide range of application in power tools, office equipment, home appliance and industrial control equipment.
    SKU: ATO-SMPS-100-48
    30-day Returns
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    Delivery date: 6-12 days


    • 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

    24V DC 4.5A 108W SMPS Specification

    Model ATO-S-100-48
    DC Voltage 48V
    Rated Current 2A
    Current Range 0 ~ 2A
    Rated Power 96W
    Ripple & Noise (Max.)(Note 2) 100mVp-p
    Voltage Adjust Range 43.2 ~ 52.8V
    Voltage Tolerance (Note 3) ±1.0%
    Line Regulation ±0.2%
    Load Regulation ±0.2%
    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.) 84%
    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.

    Dimension (Unit: mm)

    100W switch-mode power supply dimensionSMPS terminal pin number assignment


    48V DC Switching Power Supply Details

    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.

    Tips: How to select switching power supply?

    1. Select appropriate specifications of input voltage.

    2. Select appropriate power. To extend life span of power supply, it is suggested to select a device with 30% more than rated output power.

    3. Consider load characteristics. In case of motors, bulbs or capacitive load, users should select appropriate power supply to prevent overload caused by large current at startup. In case of motors, users should consider backward flow of voltage when the device is halted.

    4. Users must consider working temperature of power supply and whether there are additional auxiliary coolers. Output of the power supply shall be reduced in higher temperature conditions.

    5. Select following features according to demands:

    • Protective features: overvoltage protection (OVP), over temperature protection (OTP), and over load protection (OLP) etc.
    • Application features: signal functions (indication of normal and failure status), remote control, remote measuring, and parallel connection etc.
    • Special features: power factor correction (PFC), and uninterrupted power supply (UPS)

    6. Comply with applicable safety certification and EMC certification.

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