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    12V DC 8.5A 100W Switching Power Supply

    5 out of 5 based on 2 reviews | Write a review
    This switching power supply converts AC to DC 12V, rated current 8.5A and rated power 100W, with built-in over voltage and overload protection. It's good quality and high performance, suitable for the tools such as electric saw, drilling Machine, weeding machine, air compressor etc.
    SKU: ATO-SMPS-100-12
    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 ATO-S-100-12
    Dimension 199*98*38mm (L*W*H)
    Weight 0.65kg
    MTBF 314.9K hrs min. MIL-HDBK-217F (25 °C)
    Output DC Voltage 12V
    Rated Current 8.5A
    Current Range 0~8.5A
    Rated Power 100W
    Ripple & Noise (max.)( Note 2) 125mVp-p
    Voltage Adjust Range 10.8~13.2V
    Voltage Tolerance (Note 3) ±1.0%
    Line Regulation ±0.5%
    Load Regulation ±0.5%
    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.) 78%
    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 13.8 ~ 16.2V
    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: Switching power supply characteristics and applications
    Main characteristics:

    1. Small size and weight: the size and weight of switching power supply proves to be 20-30% of linear power, because it has no industrial frequency transformer.
    2. Low energy consumption and high efficiency: power transistor operates in switch state, so it presents lower energy consumption and higher conversion efficiency with a conversion rate of 60-70%. As a contrast, linear power supply only presents a conversion rate of 30-40%.

    Switching power supply is widely applied to industrial automatic control, military equipment, R&D equipment, LED lighting equipment, industrial control equipment, communication equipment, power equipment, meters, medical equipment, semi-conductor refrigeration and heating equipment, air purifiers, electronic refrigerators, LCDs, audio-visual products, security and monitoring devices, LED strip lights, computer cases, digital products and various instruments.

    Existing reviews of 12V DC 8.5A 100W Switching Power Supply
    Great power supply for LED lights
    Great power supply. It works well for powering LED lights. Good job!
    From: Steve | Date: 14/05/2018
    Was this review helpful? Yes No (0/0)
    So far it’s a great power supply.
    So far it’s a great power supply. The power supply is a solid, small unit. It seems that powers the radio without any interference. Nice power supply and very satisfied.
    From: Dale | Date: 27/11/2018
    Was this review helpful? Yes No (0/0)
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