General Power Transformer < Pin Type: EI Series> Type: EI-22 ◆ Product Description ・23.0×17.5mm Max.(L×W), 21.0mm Max. Height. ・Custom design is available. ◆ Feature ・Max. Operating frequency 300kHz. Max Operating Power 18.0W(300kHz),7.8W(100kHz). ・Ideally used in Switching regulator, EL inverter and Power Factor Correction choke. ◆ Dimensions (mm) 5 +0.1 φ0.8-0.05 23.0 MAX. +1.0 -0.5 17.5 MAX. 6 21.0 MAX. 1 4.0 4.0 4.0 4.0 ±0.3 ・RoHS Compliance 10 12.0±0.5 4.8 ◆ Schematics (Bottom) 1. For General Transformer ⑤ S ④ ③ 2.For PFC choke ⑥ S ⑦ S ⑤ ⑥ Ｓ ④ ⑦ Ｓ ③ ⑧ Ｓ ② ⑨ Ｓ ① ⑩ ⑧ S ② ⑨ S S ① ⑩ “ S” is winding start “ S” is winding start ◆ Specification (For General Transformer) Sample No. Inductance (1-3) 1kHz/1V (mΩ Max.) D.C.R. (6-8) (mΩ Max.) D.C.R. (7-9) Hi-pot(1,2,3,4,5-6,7,8,9,10) (50/60Hz) 3389-T171 2.2mH ± 20% 21 22 AC1500Vrms/1min. ◆ Specification (For PFC choke) Sample No. Inductance (1,2-4,5) 1kHz/1V (mΩ Max.) D.C.R. (2-4) Rated Current (1,2-4,5) 3389-T180 60µH ± 20% 780 4.0A ※ 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