General Power Transformer < Pin Type: EI Series> Type: EI-255 ◆ Product Description ・27.0×21.0mm Max.(L×W), 22.0mm Max. Height. ・Custom design is available. ◆ Feature ・Max. Operating frequency 300kHz. Max. Operating power 38.0W(300kHz) ・Ideally used in Switching regulator, EL inverter and Power Factor Correction choke ・RoHS Compliance 22.0 MAX. 21.0 MAX. 1. For General Transformer Ｓ ④ ⑤ ③ ⑥ ② ⑦ ① ⑧ +1.0 -0.5 7.0 15.0±0.3 A d h esive ◆ Schematics (Bottom) Ｓ ±0.2±0.2 ±0.2 6.5 6.5 6.5 φ0.8±0.1 27.0 MAX. ◆ Dimensions (mm) 2. For PFC choke ④ ⑤ ③ ⑥ ② ⑦ Ｓ① ⑧ Ｓ Ｓ “ S” is winding start “ S” is winding start ◆ Specification (For General Transformer) Sample No. Inductance (4-3) 1kHz/1V Leakage Inductance (4-3) 100kHz/1V Hi-pot Winding-winding (50/60Hz) 3382-T236 38µH ± 20% 2.0µH Max. DC 3000Vrms/1min. ◆ Specification (For PFC choke) Sample No. Inductance (1-8) 1kHz/1V D.C.R.(1-8) (mΩ Max.) Rated Current (1-8) 3382-T227 1.95mH ± 15% 715 1.0A ※ 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