28V 4A DC SWITCHING POWER SUPPLY

Our company is one of the leading power supply adapter manufaturer in China, being in this field for over 10 years. We have successfully exported to Europe, Janpan,Korea,Austrialia etc. We also can specially offer OEM service,buyer label. Currently we are  looking to expand our South America channels.

Our production capability per month has reached up to around 150000 units. Our after-sales service would be acceptable to our customers together with having 2 years quality warranty.

The products that we produce completely meet production safety requests. Over 40 products have acquired UL,CB test report, EMC test report,SAA,CTick,CE,PSE,KC.FCC,RoHS etc approved,more are underway.

Typical model list

AC Input Voltage.............100~240V AC 47~63 Hz

Inrush Current..............<30A(AC 240V  at 25°C)

input Current Limiting..............<2.5A(under min AC input and full load)

Efficiency..............>80%

DC Voltage Regulation

DC Output Current

Output Ripple & Noise.............  50 mVp-p@ 25 degrees C

Output Dynamic Load Response

Overshoot at turn-on/ turn-off.............<10%

SCP...........<0.1 ohms

OCPlimits.........6A

Hold up time...........>5mS(100Vac/47Hz),>10mS(110/220Vacc/50/60Hz)

Start up time..........<3S(100Vac/47Hz),<2S(110/220Vac/50/60Hz)

Working temp...........0°C~ 40°C

Storage temp Range..........-10°C~ +85°C

Working humidity..........25%~90% relative humidity (Non- condensing)

Storage humidity Range..........10%~90% relative humidity (Non- condensing)

MTBF............ 50K hours (25°C , Full load and rated voltage input)

Standards............Meet IEC60950-1standard requirement

Leakage Current.............not exceed 0.25mA at 220Vac/50Hz

Insulation Resistance...........≥50MΩ ,500VDC

100%Hi-pot  test

CERTIFICATION

50pcs/ctn
size of carton:50*44*20.5CM3