Core Size ER 2811

Description

GENERAL INFORMATION ::

These cores are a cross between E cores and Pot cores. Like E cores, they provide a wide opening on each side. This gives adequate space for the large size wires required for low output voltage switched mode power supplies. It also allows a flow of air which keeps the assembly cooler. The center post is round, like that of pot cores. One of the advantages of the round center post is that the winding has a shorter path length around it (11% shorter) than the wire around a square center post with an equal area. This reduces the losses of windings by 11% and enables the core to handle a higher output power. The round center post also eliminates the sharp bend in the wire that occurs with winding on a square center post.

TYPICAL CHARATERSTICS ::

• Magnetics Shielding                 :     External magnetic field generated close to exposed winding
• Cost of Core                                :     Average
• Cost of Winding & Assembly  :     Low
• Heat Dissipation                        :     Very Good
• Uniform Cross Section             :     Yes

APPLICATIONS ::

• Switch Mode Power Supplies (SMPS)
• Audio Transformers
• Impedance Matching
• Sensing Transformers
• Signal Distribution Transformers for communications.
• Pulse Transformers
• Isolation Transformers