General Power Transformer<Pin Type: EI Series> Type: EI-30 ◆ Product Description ・33.0×27.0mm Max.(L×W), 33.0mm Max. Height. ・Custom design is available. ◆ Feature ・Max. Operating frequency 300kHz. Max Operating power 67.0W(300kHz) ・Ideally used as general power transformers in Switching regulator, EL inverter and Power Factor Correction choke 3 3 .0 M ax . φ0 .8 ±0 . 1 ◆ Dimensions (mm) 27 .0Ma x. ±0.2 4-5.0 ・RoHS Compliance +1.0 6. 0-0. 5 33 .0M ax. 2 0 .0 ±0 . 2 Adhesi ve ◆ Schematics (Bottom) 1. For General Power Transformer. 2. For PFC choke. ⑤ ⑥ S ⑤ ⑥ ④ ⑦ S S ④ ⑦ ③ ⑧ S ③ ⑧ S ② S ① ⑨ S ② ⑨ ⑩ S ① ⑩ “ S” is winding start ◆ “ S” is winding start Specification (For General Transformer) Sample No. Inductance (7-9) 1kHz/1V (mΩ Max.) Hi-pot Winding-winding (50/60Hz) 3391-T044 470µH ± 40% 34.0 AC 500Vrms/1min. D.C.R. (7-9) ◆ Specification (For PFC choke) Sample No. Inductance (1,2,3,4,5-6,7,8,9,10) 1kHz/1V D.C.R. (7-9) (mΩ Max.) Rated Current (1,2,3,4,5-6,7,8,9,10) 3391-T047 50μH±18% 4.0 1.5 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