Model Number:ER28 (Other EI/EE/ER/EEL/ETD/EP/EPC/EFD/PQ/RM/UU) Ferrite Core shape:E/EI/R shape Apply for :electric components Type:vertical Frequency: High frequency from 1-100KHZ Cooling form:dry-type Place of Origin:Guangdong, China Brand Name:Golden Eagle Outer dimension and style can be customized ER high frequency transformers has low lost,high output power,stable performance,larger working frequency,used for exchanger, TV,display etc. feature: 1. applied in a wide range 2. high operation frequency 3. wide range of working voltage 4. large power 5. low temperature rising Provide us your drawing or samples,we can provide fast and professional solution for your items. PFC inductance core usees high quality amorphous ribbons, via unique opening process, provides high intensity of saturated magnetic induction,resistance to high current DC-BAIS performance, good frequency stability,low loss good consistency.