PQ Cores (6678212021*)

Part Number: 6678212021

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: 16 (g)

Dimmmmm tolnominal inchinch misc.
A20.5± 0.400.807_
B10.2± 0.150.402_
C14± 0.400.551_
D7± 0.150.276_
E18± 0.4730.709_
F8.8± 0.200.346_
G12min0.472min

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)2920 ±25%
Ae(cm2)0.625
Σl/A(cm-1)7.2
le(cm)4.52
Ve(cm3)2.526
Amin(cm2)0.608

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

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