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    48V DC 2A 100W Switching Power Supply

    100W Switching Power Supply is universal AC input to 48V DC with rated current 2A. It works in high performance of reliability and has a wide range of application in power tools, office equipment, home appliance and industrial equipment.
    SKU: ATO-SMPS-100-48
    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-100-48
    Dimension 199*98*38mm (L*W*H)
    Weight 0.65kg
    MTBF 314.9K hrs min. MIL-HDBK-217F (25 °C)
    Output DC Voltage 48V
    Rated Current 2A
    Current Range 0~2A
    Rated Power 100W
    Ripple & Noise (max.)( Note 2) 150mVp-p
    Voltage Adjust Range 43.2~52.8V
    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.) 84%
    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 55.2~64.8V
    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: 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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