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  Datasheet File OCR Text:
 General Power & PoE Transformer
Type: EF2017
Product Description
21.5x22.3mm Max.(LxW), 18.5mmMax. Height. In addition to the typical versions of parameters shown here, custom parameters are available to meet your exact requirements.
Feature
Max. Operating frequency 500kHz,Max. Operating Power 16.5W(500kHz). Ideally used in Switching power supply etc. Ideally used as PoE transformer. RoHS Compliance
Dimensions (mm)
22.00.3
0.80
21.20.3
MAX.18.5
+1.0 3.5-0.5
15.20.3
Schematics (Bottom)
For General Power Transformer For Power over Ethernet Transformer
S
S
S
S
S
S
S
S
"S"indicates winding start.
"S"indicates winding start.
Please refer to the sales offices on our website for a representative near you
www.sumida.com
4-3.81
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General Power & PoE Transformer
Type: EF2017
Specification (For General Power Transformer)
Inductance (3-2) 1kHz/1V D.C.R. (3-1) (m Max.) 750 D.C.R. (1-2) (m Max.) 1000 Hi-pot (1,3,4,5-10,9,7,6) (50/60Hz) AC 1000Vrms/1min.
Sample No. 4393-T063
1.4mH 10%
Specification (For Power over Ethernet Transformer)
Sample No.
Turns Ratio (Pri:Sec:Aux) 1:0.122:0.095
Primary Inductance 100kHz/0.1V 2.2m10%
Pri-Sec. Insulation AC3000Vrms (2mA/60Hz,1min)
Leakage L (H Max.) 10.0
D.C.R. ( Max.) Pri. 2.5 Aux. 0.18 Sec. 0.14
4393-T065
Please refer to the sales offices on our website for a representative near you
www.sumida.com
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