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

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Features:

  • Ideal for IEC spacing applications
  • Low leakage inductance
  • Choice of low profile horizontal or upright vertical mounting.

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
ETDH29 1 mm 35.3 37.1 28.1 0.7 3 5.1 25.4 14
    in 1.39 1.461 1.106 0.028 0.118 0.2 1  
ETDH34 1 mm 39.7 42.8 34.1 1 4 5.1 25.4 14
    in 1.563 1.685 1.343 0.039 0.157 0.2 1  
ETDH39 1 mm 44.6 47.8 37 1 4 5.1 30.5 16
    in 1.756 1.882 1.457 0.04 0.157 0.2 1.2  
ETDH44 1 mm 49.7 52.4 39.4 1 4 5.1 35.6 18
    in 1.957 2.063 1.551 0.039 0.157 0.2 1.4  
ETDH49 1 mm 54.6 57.2 41.8 1 4 5.1 40.6 20
    in 2.15 2.252 1.646 0.039 0.157 0.2 1.6  
ETDH54 1 mm 61.5 61.4 46.4 1 4.5 5.1 45.7 22
    in 2.421 2.417 1.827 0.039 0.177 0.2 1.8  
ETDH59 1 mm 66.9 66.4 49.4 1 4.5 5.1 50.8 24
    in 2.634 2.614 1.945 0.039 0.177 0.2 2  

Precision
Model Number		 Figure
Number		  

A
MAX

B
MAX 		C
MAX 		D
DIA MAX		 E
MIN		 F
NOM		 G
NOM		 NUMBER
OF PINS
ETDV29 2 mm 35.2 24.1 43.3 1 4.5 5.1 20.3 12
    in 1.386 0.949 1.705 0.039 0.177 0.2 0.8  
ETDV34 2 mm 39.6 27.1 46.1 1 4.5 5.1 22.9 14
    in 1.559 1.067 1.815 0.039 0.177 0.2 0.9  
ETDV39 2 mm 43.5 29.1 51 1 4.5 5.1 25.4 16
    in 1.713 1.146 2.008 0.04 0.177 0.2 1  
ETDV44 2 mm 48.9 31.6 55.4 1 4.5 5.1 27.9 18
    in 1.925 1.244 2.181 0.039 0.177 0.2 1.1  
ETDV49 2 mm 53.6 34.1 59.5 1 4.5 5.1 30.5 20
    in 2.11 1.343 2.343 0.039 0.177 0.2 1.2