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PC44EPC27-Z Datasheet(PDF) 36 Page - TDK Electronics

Part # PC44EPC27-Z
Description  Ferrite for Switching Power Supplies
PDF  45 Pages
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Manufacturer  TDK [TDK Electronics]
Direct Link  http://www.tdk.com
Logo TDK - TDK Electronics

PC44EPC27-Z Datasheet(HTML) 36 Page - TDK Electronics

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002-03 / 20100305 / e143.fm
• All specifications are subject to change without notice.
EPC Series EPC19 Cores
∗ Coil: ø0.2 2UEW 100Ts
NI limit vs. AL-value for
AL-value vs. Air gap length for
Temperature rise vs. Total loss for
PC44EPC19 gapped core (Typical)
PC44EPC19 core (Typical)
EPC19 core (Typical)
(Ambient temperature: 25°C)
PARAMETER
Core factor
C1
mm–1
2.03
Effective magnetic path length
emm
46.1
Effective cross-sectional area
Ae
mm2
22.7
Effective core volume
Ve
mm3
1050
Cross-sectional center pole area
A
cp
mm2
19.9
Minimum cross-sectional area
A
cp min. mm2
18.7
Cross-sectional winding area of core
Acw
mm2
54.4
Weight (approx.)
g5.3
15.8min.
19.1
±0.4
8.5
±0.15
7.25
±0.2
9.75
±0.2
Dimensions in mm
13.1min.
Part No.
AL-value (nH/N2)∗
Core loss (W) max.
Calculated output power
(forward converter mode)
100kHz, 200mT
PC44EPC19-Z
940±25% (1kHz, 0.5mA)
0.4(100°C)
27W (100kHz)
PC90EPC19-Z
940±25% (1kHz, 0.5mA)
0.5(100°C)
28W
PC95EPC19-Z
1400±25% (1kHz, 0.5mA)
0.5/0.4/0.5(25°C/80°C/120°C)
28.7W
Note: The temperature rise is measured in the
room whose temperature and humidity are
fixed to 25°C and 45(%)RH. respectively.
(approx. 400
×300×300cm)
102
103
AL-value(nH/N2)
103
104
102
101
101
Temperature: 100˚C
40%
20%
NI20%=6344.7×AL–1.0033
NI40%=6050.6×AL–0.9758
104
103
102
101
Air gap length(mm)
0.01
0.10
1
10
Center pole gap
Temperature: 25˚C
AL=46.743×lg –0.6721
0
50
100
Total loss Pm(W)
0
1.5
2.5
12
0.5
Measuring point
Coil
Core
Note: NI limit shows the point where the exciting
current is 20% and 40% away from its
extended linear part.
Measuring conditions • Coil: ø0.2 2UEW 100Ts
• Frequency: 1kHz
• Level: 0.5mA



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