Precision Products
High Frequency Power		  
 

EP Power Switchmode Transformers
This spec sheet is available in printable format.

Features:

  • Available in thru hole and surface mount
  • High power density/volume
  • Small footprint
  • Good for gapped or ungapped applications
  • Less ideal for applications involving IEC

How to choose your model:

  • Use the “sizing factor” previously calculated and the frequency to locate a point on the chart.
  • Choose the model # whose line is above the located point.
  • Note: During the design process, the actual sizing factor may vary from the assumptions used here.

EP Style graph

EP Schematic


Precision
Model Number		 Figure
Number		  

A
MAX

B
MAX 		C
MAX 		D
DIA MAX		 E
MIN		 F
NOM		 G
NOM		 NUMBER
OF PINS
EP7 1 mm 9.9 8 10.8 0.65 2.8 2.54 5.08 6
    in 0.39 0.315 0.425 0.026 0.11 0.1 0.2  
EP10 1 mm 12.3 11.7 12.8 0.65 3 2.54 7.62 8
    in 0.484 0.461 0.504 0.026 0.118 0.1 0.3  
EP13 1 mm 14.4 14.1 13.8 0.65 3 2.54 10.16 10
    in 0.567 0.555 0.543 0.026 0.118 0.1 0.4  
EP17 1 mm 19.9 19.5 16.4 0.65 3 5.08 15.24 8
    in 0.783 0.768 0.646 0.026 0.118 0.2 0.6  
EP20 1 mm 27.3 23.3 20.6 0.65 3 5.08 17.78 10
    in 1.08 0.917 0.811 0.026 0.118 0.2 0.7  

 

Precision
Model Number		 Figure
Number		  

A
MAX

B
MAX 		C
MAX 		D
DIA MAX		 E
MIN		 F
NOM		 G
NOM		 NUMBER
OF PADS
EPSM7 2 mm 9.7 14.9 11 0.8 1.8 3 8.95 6
    in 0.382 0.587 0.433 0.031 0.071 0.118 0.352  
EPSM7A 2 mm 9.9 11.4 11.3 0.4 1.25 2 7.75 8
    in 0.39 0.449 0.445 0.016 0.049 0.0787 0.305  
EPSM10 2 mm 12.5 17.8 12.9 0.8 1.8 2.54 11.4 8
    in 0.492 0.701 0.508 0.031 0.071 0.1 0.449  
EPSM13 2 mm 13.5 19.8 14.4 0.8 1.8 2.54 13.4 10
    in 0.532 0.78 0.567 0.031 0.071 0.1 0.528