General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 28868-2012
Scope
This standard specifies the dimensions and valid parameters of uncoated toroidal cores. This standard applies to uncoated toroidal cores. The core is mainly used for power choke coils and drive transformers, pulse and broadband transformers, EMI suppression: differential mode and common mode choke coils, etc.
GB/T 28868-2012 Referenced Document
GB/T 20874-2007 Calculation of the effectiv parameters of magnetic piece parts
SJ/T 10213-1991 TYPe designation System for ferrite materals and conponents
GB/T 28868-2012 history
2012GB/T 28868-2012 Dimensions of uncoated ring cores of magnetic oxides