Ferrite U Cores: Significance, Properties, Applications & Sizes 
                     FERRITE 
U 
CBy CoOsmo FerRrites ES
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Ferrite U Cores: Significance, Properties, Applications & Sizes
TABLE OF 
•
COOverview• SignificaNnce oTf U CEoreNs T
• Properties of U Cores
• Major Applications
• Popular Sizes to buy
• Conclusion
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OVERVIEW
Ferrite U cores are dense ceramic ceramics 
composed of manganese and zinc metals. 
They are an excellent choice for transformers, 
chokes, and transducers because they provide 
several design benefits such as high resistivity, 
a wide range of operating frequencies, time 
and temperature stability, cheap cost, and the 
availability of a wide variety of material 
alternatives.
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They are quite popular in the worldwide market and are created 
in a cost-effective manner. Because they are simple to 
manufacture, they are generally affordable. The cores are large 
and may be combined in multiple layers to increase power. They 
have no self-protection ability.
SIGNIFIC Because U cores have long legs, they have low leakage inductance and 
allow for improved voltage isolation. 
ANCE These cores are combined with other U cores or I cores to form a square closed core shape, which is the most basic design.
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PROPERTIES
• At high flux densities and temperatures, the permeability is 
high and the losses are minimal. 
• Low existing currents due to high saturation 
• Because of the length of the legs, there is less leakage. 
• Excellent voltage isolation and frequency responsiveness 
• Air gaps and AL values that are specific
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Applications
• PoweAr NTraTnHsfOormNeYr sJ. 
• Broadband Transformers
• ConveDrte'rA &N InGveErteLrO Transformers
• Voltage Converters
• Noise Filters
• Inductive Heating
• Compensated Chokes
• Ignition Systems
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Popular Sizes
UU9A3N3T0 HUO93N/Y7 6J/.3 0
UU12D6'2A0N UG1E26L/O91/20
UU10130 U101/76/30
UU14130 U141/78/30
UUR6440 UR64/40/20
UU116 U10/8/5
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Ferrite U Cores are the ultimate choice for you to 
serve your electrical and mechanical requirements. 
CONCLUS While using them for your applications, you can enjoy 
the benefits of high magnetic permeability, low losses 
ION in high frequency, and low conductivity. 
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Thank You
Cosmo Ferrites specializes in producing MnZn based high-quality standard 
U cores. You can buy these cores for your electrical needs, in any quantity, 
be it thousands or millions. They provide to customers in the shortest 
possible delivery time. You may also speak with specialists for further 
information on the items and their cost. Feel free to request a sample.
[email protected] +91-11 4939 
8800
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