General Power Transformer < Pin Type: EI Series> Type: EI-28 ◆ Product Description ・29.5×25.0mm Max.(L×W), 23.0mm Max. Height. ・Custom design is available. ◆ Feature ・Max. Operating frequency 300kHz. Max Operating power 51.0W(300kHz). ・Ideally used in Switching regulator, EL inverter and Power Factor Correction choke. ・RoHS Compliance ±0.2 4- 5.0 ◆ Dimensions (mm) 29 .5 MAX . φ0.8-±0.1 Adhesi ve 25 . 0 MA X . 7 .5 ±1. 0 2 3. 0 M AX . 17.5±0.5 ◆ Schematics (Bottom) 1.For General Transformer ⑤ ④ 2.For PFC choke ⑥ S ⑤ ⑥ ⑦ S S ④ ③ S ② S ① ⑦ S ③ ⑧ S ② ① ⑨ ⑩ “ S” is winding start ⑧ ⑨ ⑩ “ S” is winding start ◆ Specification (For General Transformer) ◆ Sample No. Inductance (6-9) 1kHz/1V (mΩ Max.) Hi-pot Winding-winding (50/60Hz) 3390-T144 2.2mH ± 25% 365 AC 1500Vrms/1min. D.C.R.(2-5) Specification (For PFC choke) Sample No. Inductance (2,3,4-7,8,9) 1kHz/1V D.C.R. (2,3,4-7,8,9) (mΩ Max.) Rated Current (2,3,4-7,8,9) 3390-T152 160μH ± 30% 68 5.0 A ※ Rated current: The DC current at which the inductance decreases to 90 % of it’s initial value or when △t=40℃, whichever is lower(Ta=20℃). Please refer to the sales offices on our website for a representative near you www.sumida.com 1/1