Company Profile
  Contact Us

Battery Holders
Gas tubes
Heat Sinks
ICs >> STM32 microcontrollers
LCD Module
LED Display
LED Lens
LED Lights
LED Module
Miniature Speakers
Plastic & Hardware
Potentiometers & Encoders
Power Supplies
Power supply filters
Quartz Crystal
Test Probes


Power Supplies / D Series /

HD-50W series

Normal dual switching power supply

- 170~264VAC AC input
- Small volume, low weight, high efficiency
- Protections:short circuit/over load
- LED indicator for power on
- 100% full load burn-in test
- 2 year warranty

Model HD-50A HD-50B HD-50C
output DC voltage CH1: 5V CH2: 12V CH1: 5V CH2: 24V CH1: 12V CH2: 24V
Voltage tolerance ±2% +4%~-8% ±3% +6%~-8% ±3% +6%~-8%
Rated current 5A 2A 3A 1.5A 2A 1.2A
Current range 0.8~5A 0.3~2A 0.8~3A 0.2~1.5A 0.5~2A 0.2~1.2A
Rated power 49W 51W 52.8W
Ripple&noise 80mvp-p 100mvp-p 80mvp-p 120mvp-p 100mvp-p 120mvp-p
DCvoltage ADJ.range CH1: -9%~+10%
input Voltage range 170~263VAC, 235~373VDC
Frequency 47~63HZ
AC current 0.8A/230VAC
Efficiency 79% 80% 82%
Inrush current Cold start current 36A/230VAC
Leakage current < 2mA/240VAC
protection Overload Rated output power 110%~150 start over load protection
protection type: hiccup mode, auto-recovery after fault condition is removed
environment Working temp, humidity -10°C~+60, 20%~90%RH
Storage temp, humidity -20°C~+85, 10%~95%RH non-condensing
Withstand vibration 10~500HZ, 2G 10min/1cycle, period for 60 minutes, each axes
safety Withstand voltage I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC
Isolated resistance I/P-O/P,I/P-FG,O/P-FG:100M ohms/500VDC
fit standard Safety standard Fit UL1012
EMC standard EN55022, CLASS A
others Dimension 111*78*36mm (L*W*H)
Weight/packing 0.27kg/50pcs/14.5kg/0.027m3/0.96CUFT
note 1. All parameters NOT specially mentioned are measured at 230VAC 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.