General Power Transformer
Type: EI-25S
◆ Product Description
・28.0×21.0mm Max.(L×W), 21.0mm Max. Height. ・Custom design is available.
◆ Feature
・Max. Operating frequency 300kHz. Max. Operating power 36.0W(300kHz) ・Ideally used in Switching regulator, EL inverter and Power Factor Correction choke. ・RoHS Compliance
www.DataSheet4U.com ◆ Dimensions (mm)
＋ ＋ ＋ ＋
12.5
φ0.8±0.1
27.0 MAX.
＋ ＋ ＋ ＋
20.0 MAX.
22.0 MAX.
＋1.0 －0.5 2.7
◆ Schematics (Bottom)
1. For General Transformer
④ S ③ ② S ① ⑤ ⑥ ⑦ ⑧ S S
2. For PFC choke
④ ③ ② S ① ⑤ ⑥ S ⑦ ⑧
“ S” is winding start
“ S” is winding start
◆ Specification (For General Transformer)
Sample No. 3370-T029 Inductance (1-2) 1kHz/1V D.C.R. (1-2)
(Ω Max.) 3.5
Hi-pot Winding-winding (50/60Hz) AC 1500Vrms/1min.
15.7mH ± 20%
◆ Specification (For PFC choke)
Sample No. 3370-T027 Inductance (6-8) 1kHz/1V
(mΩ Max.) 370
D.C.R. (6-8)
Rated Current (6-8) 1.5 A
470μH ± 15%
※ 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
5.0 5.0 5.0 ±0.3
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