PQ Cores (6678272521)

Part Number: 6678272521

78 PQ CORE SET

PQ cores were developed for use in power applications. The large surface area to volume of the core aids in heat dissipation. PQ cores are employed both in filter and transformer designs for switch mode power supplies.

• PQ cores can be supplied with the centerpost gapped to a mechanical dimension or an ALvalue.

Catalog Drawing
3D Model

Weight indicated is per pair or set.

Weight: 36 (g)

Dimmmmm tolnominal inchinch misc.
A26.5± 0.501.043_
B12.5± 0.150.492_
C19± 0.400.748_
D8.05± 0.150.317_
E22.5± 0.400.886_
F12± 0.300.472_
G15.5min0.611min

Chart Legend
Σl/A  :  Core Constant,    le :  Effective Path Length,    Ae :  Effective Cross-Sectional Area,    Ve :  Effective Core Volume
AL :  Inductance Factor  
Explanation of Part Numbers: Digits 1 & 2 = product class and 3 & 4 = material grade.

Electrical Properties
AL(nH)4670 ±25%
Ae(cm2)1.177
Σl/A(cm-1)4.59
le(cm)5.4
Ve(cm3)6.359
Amin(cm2)1.131

AL value is measured at 1 kHz, B < 10 gauss.

Fair-Rite Products Corp.     One Commercial Row, Wallkill, New York 12589-0288
888-324-7748      845-895-2055      Fax: 845-895-2629      ferrites@fair-rite.com      www.fair-rite.com