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