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High Frequency Transformer
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EFD Type4

EFD Transformer

High Frequency Transformers in Power Supply Application

Application: 


VCR, Duplicator, Audio Device, Electronic Toy, TV, Micro-computer, Communication Control Device, Printer, Lighting Electrical Applicance, Terminal Equipment, etc.


Transformer EL Feature:
  • Operating Temperature Range: -10℃ ~ +95℃
  • Storage Temperature: -15℃ ~ 38℃
  • Switching Frequency: 15KHz ~ 300KHz
  • Withstand Voltage:
Between Primary and Secondary 3500VAC one minute 3500VAC  1min.
Between Primary and Megnetic Core 2500VAC one minute 2500VAC  1min.
Secondary and Magnetic Core 1500VAC  1min.
  • Insulation Resistance: Between Primary and Secondary 500VDC 100MΩ min.
  • Temperature Resistance Grade E (120℃)、B (130℃).
  • RoHS/UL recognized components.
  • Available in custom-mode models and specification.
Type L H W A B Pin1 Pin2 Fig.
EFD-15 17.0 9.5 18.0 13.7 3.7 4 4 1
EFD-20 22.0 11.5 11.0 17.5 5.0 4 4 1
EFD-20-1 22.0 15 15.0 23.8 3.7 5 5 1
EFD-25 27.0 13 28.0 22.5 5.0 5 5 1
EFD-25-1 27.0 15 28.0 22.5 5.0 5 5 1
EFD-30 32.0 14 33.0 27.4 5.0 6 6 1
EFD-30-1 32.0 18 36.0 27.5 5.0 6 6 1
EFD-15SMD 16.5 8 22.0 15 2.5 5 5 2
EFD-20SMD 22.0 11 29.5 20.5 5.0 4 4 2

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