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    12V DC 12.5A 150W Switching Power Supply

    12V DC 150W switching power supply convert full range AC power to 12V DC, rated current 12.5A, Cooling by free air convection and with short circuit, overvoltage and overload protection. High price-effective and reliability SMPS has a wide applications such as LED light strips, computers, printers, TV, radio, air compressors, vehicle and so on.
    SKU: ATO-SMPS-150-12
    30-day Returns
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    Delivery date: 6-12 days


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


    Model ATO-S-150-12
    DC Voltage 12V
    Rated Current 12.5A
    Current Range 0 ~ 12.5A
    Rated Power 150W
    Ripple & Noise (Max.)(Note 2) 180mVp-p
    Voltage Adjust Range 10.6 ~ 13.2V
    Voltage Tolerance (Note 3) ±1.0%
    Line Regulation ±0.3%
    Load Regulation ±0.3%
    Setup, Rise, Holdup Time 100ms, 50ms, 20ms at full load
    Input Voltage Range 88 ~ 132VAC/176V~264VAC (selected by a switch) or 248 ~ 370VDC
    Frequency Range 47~63Hz
    Efficiency (Typ.) 82%
    AC Current (Typ.) 3.2A/115V AC 1.6A/230V AC
    Inrush Current (Typ.) Cold start: 35A
    Leakage Current <3.5mA/240V AC
    Protection Overload 105~150% rated output power
    Protection type: Shut down output voltage, re-power on to recover.
    Overvoltage 13.8V ~ 16.2V
    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 UL60950-1, TUV EN60950-1, CCC GB4943 Approved
    Withstand Voltage I/P-O/P: 3KVAC 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 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
    Others MTBF ≥286.7K hrs MIN. MIL-HDBK-217F (25℃)
    Dimension 199*110*50mm (L*W*H)
    Weight 0.8kg
    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.

    Dimensions (Unit: mm)

    150W switch-mode power supply dimensionSMPS terminal pin number assignment


    12V 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 deal with the blown fuse of switching power supply?

    In general conditions, blown power fuse indicates problems in internal circuits. The power supply operates under high voltage and current. Voltage fluctuations or surges of power grid often give rise to instant increase of current, which may result in blown power fuse. Users should check whether there is breakdown, open circuit or damage on rectifier diode, HV filtering electrolytic capacitor, and inversion power switch tube at the input end. If the power fuse is blown with no indication of other problems, users need to check components on the circuit board to check whether they are burned out with leaked electrolyte. If there is no such condition, users should check whether there is breakdown or short circuit by multimeter. Users shall not start up the equipment even after finding out and replacing the damaged part, because HV components with malfunctions may damage the newly-replaced part. When dealing with blown power fuse, users must check all HV components on the circuit board before starting up the equipment.

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