General Power Transformer < Pin Type: EI Series>
Type: EI-255B
◆
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 38.0W(300kHz)
・Ideally
used in Switching regulator, EL inverter and Power Factor Correction choke
・RoHS
Compliance
4.5 4.5 4.5 4.54.5±0.2
5.5 5.5 5.5 5.5 ±0.3
◆
Dimensions (mm)
28.0 Max.
φ0.8
-0.05
21.0 Max.
21.0 Max.
±0.5
3.0
+0.1
15.5±0.3
◆
Schematics (Bottom)
1. For General Transformer
S ⑤
④
S ③
S ②
①
⑥
⑦ S
⑧
⑨ S
⑩
⑪
Ｓ
Ｓ
2. For PFC choke
⑤
④
③
②
①
⑥
Ｓ
⑦
Ｓ
⑧
Ｓ
⑨
⑩
⑪
“ S” is winding start
◆
Specification (For General Transformer)
Sample No.
1330-T110
Inductance (2-1)
1kHz/1V
D.C.R. (2-1)
(mΩ Max.)
Hi-pot
Winding-winding
(50/60Hz)
AC 1800Vrms/1min.
1.5mH ± 25%
2000
◆
Specification (For PFC choke)
Sample No.
1330-T097
Inductance (2-4)
1kHz/1V
D.C.R. (2-4)
(
mΩ Max.
)
Rated Current
(2-4)
5.7 A
35µH ± 20%
98
※
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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SUMIDA [ SUMIDA CORPORATION ]
