Learn More about Ferrite Pot Cores

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Learn More about Ferrite Pot Cores
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Overview

• Pot cores have found use in a wide range of
  inductive devices. The core configuration
  provides excellent self-shielding. It also allows
  for gapping, which improves the utility of a
  variety of magnetic designs.
• The centre post of pot cores can be gapped to a
  mechanical dimension or an AL value.
• Industry standard PQ core sizes include PQ20/16,
  PQ26/20, PQ26/25, PQ20/20, PQ32/20, PQ32/30,
  PQ35/35, PQ40/40, PQ50/50

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Chart Legend
Chart Legend Sl/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 PropertiesAL(nH)2100
  25Ae(cm2)0.251Sl/A(cm-1)7.9le(cm)1.98Ve(cm3)0.49
  5Amin(cm2)0.198

Electrical Properties Electrical Properties
AL(nH) 2100 25
Ae(cm2) 0.251
Sl/A(cm-1) 7.9
le(cm) 1.98
Ve(cm3) 0.495
Amin(cm2) 0.198
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Material Characteristics
Property Unit Symbol Value
Initial Permeability _at_ B lt 10 gauss µi 3000
Flux Density _at_ Field Strength Gauss Oersted B H 5000 5
Residual Flux Density Gauss Br 1200
Coercive Force Oersted Hc 0.18
Loss Factor _at_ Frequency 10 -6 MHz Tan d/ µi 2.5 0.1
Temperature Coefficient of Initial Permeability (20 -70C) /C 0.6
Curie Temperature C Tc gt220
Resistivity Ohm-cm ? 200
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FEATURES

• Excellent Winding Capability
• Low Cost Bobbin and Winding
• Simple Assembly
• Good Heat Dissipation

• Low Losses
• Low Loss Over Wide Temperature Range
• Good Stability Across Load Conditions
• Self Shielded geometry isolates winding from
  stray magnetic fields

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APPLICATIONS

• Converter Transformers
• Inverter Transformers
• Differential Mode Inductors
• Power Inductors
• Power Transformers
• Telecom Inductors

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Contact Us
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