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Quick Details

  • Place of Origin: China
  • Brand Name: Hengfu
  • Model Number: HF45W-SPL
  • Output Power: 1 - 50W
  • Output Type: Single
  • Input Voltage: 85 - 264VAC
  • Output Voltage: 3 - 48V all available
  • Output Current: 1 - 8A all available
  • Dimensions: 127 x 76.2 x 27mm (3" x 5")

Packaging & Delivery

Packaging Details: 0.25kgs/pcs for 45W Single/Dual/ Triple Output Open Frame Power Supply
Delivery Detail: 2-3 weeks for 45W Open Frame Power Supply


Universal input
Miniature PCB structure
All 105C capacitors
Japanese brand for key components
CE marked

45W Single/Dual/ Triple Output Open Frame Power Supply
Product features:
1) Universal AC input / full range

2) CE marked

3) Miniature PCB structure

4) High reliability

5) Free air convection cooling

6) 100% full load burn-in test
7) Protections: over load/ over voltage/ short circuit
8) Built in EMI filter

9) 5 years limited warranty

10) Dimensions: 127 x 76.2 x 27mm (3" x 5")


AC input voltage range

85~264VAC (120~370VDC)

Input current1.3A
Input frequency47~63Hz
Inrush currentcold start, 20A/115V, 40A/230V
Input leakage current< 1mA/230VAC
Line regulation (full load)± 0.5%
Output voltage adjust range± 10%
Output overload protection105~150%, hiccup mode, auto recovery
Output over voltage protection115~150%, shut off, re-power on to recover
Withstand voltage

I/P-O/P: 3KVAC/1min, I/P-F/G: 1.5KVAC/1min, O/P-F/G: 0.5KVAC/1min

Rise time50ms@full load (typical)
Hold up time20ms@full load (typical)
Operating temperature-10°C ~+50°C
Storage temperature-20°C ~+85°C
MTBF> 100,000 hours
Safety standardsGB4943, UL60950, EN60950
EMC standardsGB9254, EN55022 class B, EN55024, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11
Vibration10~150Hz, 2G 10min/1cycle, 30min each along X, Y, Z axes
Cooling methodconvection


Model No.DC Output







HF45W-SPL-5 5V8A40W0.5% ± 2% 80mV 70%
HF45W-SPL-1212V 3.7A44.4W0.5% ± 1% 120mV 83%
HF45W-SPL-24 24V1.9A45.6W0.5% ± 1% 150mV 85%
HF45W-SPL-48 48V1A


0.5% ± 1% 150mV 86%



Mechanical drawing of 45W Single/Dual/ Triple Output Open Frame Power Supply:


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China (Mainland) | Manufacturer, Trading Company
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