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Products » Iron Based Powder Cores » Dumb-bell-configured Cores »

Dumb-bell-configured Powder Iron Cores

Dumb-bell-configured Powder Iron CoresDumb-bell-configured powder iron cores are intended to be used as magnetic circuits of chokes that are rated for high currents in power electronics applications not having high requirements for a level of electromagnetic emission. Low cost of layer winding on dumb-bell core permits to make significantly lower price of finished choke.


Standard Sizes of Cores

Standard sizes of dumb-bell cores made of powder iron .

Standard Size AL,
nH
OD1,
mm
OD2,
mm
ID,
mm
T,
mm
L,
mm
Window
Volume,
cm³
KI 36,1*23,8*12,7 85 36,1 12,7 4,37 3,96 23,8 1,84
KI 36,1*33,3*12,7 60 36,1 12,7 4,37 3,96 33,3 2,95
KI 46,9*31,8*15,9 100 46,9 15,9 5,56 4,75 31,8 3,43
KI 46,9*41,3*15,9 80 46,9 15,9 5,56 4,75 41,3 4,9
KI 63,5*34,9*19,1 130 63,5 19,1 6,6 4,75 34,9 5,66
KI 63,5*47,6*19,1 95 63,5 19,1 6,6 4,75 47,6 8,49

* — Approximate value of Al is shown.

Dumb-bell-configured Powder Iron Cores

Designations in Design Documentation

Designations of powder iron dumb-bell cores in design documentation.

KI 36,1*23,8*12,7
KI — Dumb-bell configured core made of powder iron core
36,1 — dumb-bell core cap’s diameter OD1, mm
23,8 — dumb-bell core’s height ID, mm
12,7 — dumb-bell core leg’s diameter OD2, mm.

 
NORTH-WESTERN LABORATORY: NEWS
 
05.06 09 
Epcos has developed a new N95 power ferrite material with an exceptionally low power loss.



12.05 09 
New Epcos ferrite ring core sizes : N87 R20*12*6 and N87 R28*16*9



02.02 09 
New Epcos ferrite E core size : N87 E16/8/7,8 B66502GX187



 
 


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