Switching Mode Power Supply – Fine Suntronix JSF75


  • Low cost
  • Inrush current limit
  • Wide input voltage range (Universal input voltage or user selectable voltage)
  • Over voltage protection
  • Overcurrent protection
  • 3 years warranty

Dpstar Group is a Malaysia power supply system supplier specializing in AC/DC power supply and switching mode power supply systems. The JSF series switching mode power supplies provide efficient power conversion and stable power supply with minimal noise and ripple.

A switched-mode power supply (SMPS) is an electronic circuit that converts power using switching devices that are turned on and off at high frequencies, and storage components such as inductors or capacitors to supply power when the switching device is in its non-conduction state. Switching power supplies have high efficiency and are widely used in a variety of electronic equipment, including computers and other sensitive equipment requiring stable and efficient power supply. A switched-mode power supply is also known as a switch-mode power supply or switching-mode power supply.

Block Diagram


The switch mode power supplies are used in a variety of application ranging from computers, servers and associated equipment, for domestic electronic equipment, security and most of the battery operated equipment where high efficiency and small sizes are required.


Model JSF25 JSF35 JSF50 JSF75 JSF100 JSF150 JSF200 JSF350
Input Voltage, Frequency AC100-240V(AC88~264 or DC125~370V), 50/60Hz,
Universal Input
50/60Hz or DC240~370V User-selectable
Output Voltage/
3.3V 6A 7A 10A 15A 20A 30A
5V 5A 7A 10A 12A 16A 26A 40A 60A
9V 2.8A 4A 5.6A 8A 11A 16.5A
12V 2.1A 3A 4.2A 6A 8.5A 12.5A 17A 29A
15V 1.7A 2.4A 3.4A 5A 7A 10A
24V 1.1A 1.5A 2.2A 3.2A 4.5A 6.5A 8.3A 14.6A
48V 0.57A 0.8A 1.1A 1.6A 2.3A 3.3A 4.2A 7.3A
Input Current [A]
110V 0.7 0.8 1.3 1.6 2.2 3.5 4.5 7.0
220V 0.4 0.55 0.8 1 1.2 2 2.5 4
Efficiency [%] 110V 84 typ 84 typ 85 typ 86 typ 86 typ 86 typ 84 typ 87 typ
Operating Temp And Humid -10~+70°C (Required Derating), 20~90% RH (Non Condensing)
Safety Regulation UL, C-UL, CE, CB CE, KC
Size(W×H×D/mm) 51×28.5×79 82×36×99 97×36×99 98×38×129 97×38×159 98×38×199 98×50×199 115×50×215
Weight(g) 200 330 350 410 600 700 730 925


Fine Suntronix JSF75 – Switching Mode Power Supply_DpstarGroup