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Bobbin depth of PQ3230 former?

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cupoftea

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Hi,
In the PQ3230 datasheet page 4 they have winding area = 53mm^2 and winding width = 18..7mm….this gives a bobbin depth of 2.83mm.
However, the drawing shows an outer diameter of 26.7mm, and a spool diameter of 15.9mm…..this gives a bobbin depth of 5.4mm
Do you know what is the actual bobbin depth?

PQ3230 datasheet:
 

Hi,

I´d rely on the drawing.
Not on the result of a math.

One can simply use a rule to find ot if the drawing is correct.
But it´s harder to find out what formula, what conditions, what measures are used to get the area value.

Klaus
 
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