Released 2010
Rated Input: AC85 - 264V 1Φ
Rated Output Wattage: 300W
Rated Output Voltage: 3.3V,5V,12V,15V,24V,30V,36V,48V
Warranty Period 5-year (Refer to Instruction Manuals)

This power supply is manufactured by SMD technology. The stress to P.C.B like twisting or bending causes the defect of the unit, please handle the unit with care
*Make sure necessary tests will be carried out on your end equipment with the power supply installed in accordance with any required EMC/EMI regulations.

Features of LFA300F

• Small and compact PCB construction
• Built-in inrush current, overcurrent and overvoltage protection circuits
• Harmonic attenuator (Complies with IEC61000-3-2)
• Universal input (AC85-264V)
• Power factor correction (LFA50F-300F)
• Built-in reducing standby power circuit (LFA10F, 15F)

Ordering Information and Options

LF(1)  A(2)  300(3)  F(4)  -  (5)  -  (6)  

(1) Series name
(2) Single output
(3) Output wattage
(4) Universal input
(5) Output voltage
(6) Optional
  C: with Coating
  G: Low leakage current
  H: with the function to be acceptable to output peak current (only 24V, 30V, 36V and 48V)
  J: EP (Tyco Electronics) connector type (Except 3.3V and 5V)
  J1: VH (J.S.T.) connector type (Except 3.3V and 5V)
  R: with Remote ON/OFF
  R2: with Remote ON/OFF
  S: with Chassis
  SNF: with Chassis & cover & fan (Only 5V, 12V and 24V)
  T1: Horizontal terminal block
Please refer to Instruction manual 5.

Optional Parts


Recommended EMI Filters

Product Line-up

Product Name Output Wattage Output Voltage・Current
LFA300F-3R3-TY 198W 3.3V 40A Convection Cooling
3.3V 60A Forced Air Cooling
LFA300F-5-TY 300W 5V 40A Convection Cooling
5V 60A Forced Air Cooling
LFA300F-12-TY 324W 12V 17A Convection Cooling
12V 27A Forced Air Cooling
LFA300F-15-TY 330W 15V 14A Convection Cooling
15V 22A Forced Air Cooling
LFA300F-24-TY 336W 24V 12.5A Convection Cooling
24V 14A Forced Air Cooling
LFA300F-24-HTY 336W (456W) 24V 12.5A (Peak: 19A) Convection Cooling
24V 14A (Peak: 19A) Forced Air Cooling
LFA300F-30-TY 330W 30V 10A Convection Cooling
30V 11A Forced Air Cooling
LFA300F-36-TY 338.4W 36V 8.4A Convection Cooling
36V 9.4A Forced Air Cooling
LFA300F-48-TY 336W 48V 6.3A Convection Cooling
48V 7A Forced Air Cooling
  • * For further information and how to use, please see in Cosel product catalog.

Block Diagram