SUMIDA EI

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
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