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HLK-5M03 AC to DC 3.3v 5w Step Down mini Power Supply Module Converter Intelligent household switch power module

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Product Features

Global universal input voltage(90-264VAC)

Input and output isolation voltage 3000VAC

Low power consumption, green enviroment protection, no-load loss<0.1W

High efficiency, high power density

Long life design, continuous working time is greater then 100,000hours

High output-quality environmentally friendly waterproof thermal conductive glue potting, dustproof,moisture-proof, shockproof, flame-retardant

Meet UL/CE/EMC and safety testing requirenments

Can be used in medical, industrial control, electric power, instrumentation, communication,railway and other fields

Environment Condition

Working Temerature        -25—+60 ℃

Storage temperature        -40—+80 ℃

Relative humidity             5—95 %

Thermal methods             Natural cooling

Atmospheric pressure      80—106 Kpa

Altitude                            ≤2000 m

Vibration coefficient        10~500Hz,2G10min./1cycle, 60min.each along X,Y,Z axes. Meets secondary road transportation requirements

Input Features( test at room temperature)

Rated input voltage        100-240Vac

Input vlotage range         85-264VAC/70-350VDC

The maximum input voltage             270VAC

The maximum input CURRENT        ≤0.2A

Input inrush current                         ≤10A

Input low start                                 ≤50mS

Long-term reliablity                         MTBF≥100000H

External fuse recommended           1A/250Vac or 10Ω wire wound resistance, Slow blow

Output Features

Full-load rated output voltage           3.3±0.2%

Load regulation                                      ±0.5%

Switching on/off overshoot amplitude                (Rated input voltage, output plus 10% load) ≤5 %VO

Output over-current protection Output maximum load             110-150% A

Ripple/Noise                   ≤100mVp-p(Typ:50)

Input Voltage & Load Characteristics


Working Environment Temperature & Load Characteristics


Typical Application Circuit


Parameter Recommendation

F1/Fuse:1A/250Vac or 10Ω wire wound resistor, slow fuse

MOV1/Varistor:10D561K(The cumulative surge is to protect the module from damage)

C1/Safety capacitance: 0.1uF/275VAC(Filtering/safety protection/EMC certification)

L1/Common-mode inductance:Sensible value 10-30mH(testing requirements 1KHZ/0.3V current:100-500mA). EMI filtering

Safety Characteristics

Meet UL/CE requirements(UL/CE certification requires customers to self-certify)

Safe compatible with battery

The input end design adopts UL certification 1A insurance

The fire ration of PCB board is 94-V0

Safety standards comply with UL1012,EN60950,UL60950

Insulation voltage I/P-O/P>2500Vac

Insulation resistance I/P-O/P>100M 0hms/500Vdc 25℃ 70%RH

Conforms to radiation EN55011, EN55022(CISPR22)

Electrostatic discharge IEC/EN 61000-4--2 level4  8KV/15KV

Temperature rise safety design

Under normal conditons, the maximum temperature rise of the inner surface  of the power supply capacitor, 

main converter, etc. does not exceed 90℃,and the maximum temperature rise of the shell surface does not exceed 60℃

Dimension and Weight


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