SUMIDA EI

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