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Ferroxcube
P cores and accessories
CORE SETS
Effective core parameters
SYMBOL
PARAMETER
Σ(I/A)
core factor (C1)
Ve
effective volume
Ie
effective length
Ae
effective area
Amin
minimum area
m
mass of set
VALUE UNIT
0.330 mm−1
6190 mm3
45.2 mm
137
mm2
116
mm2
≈ 34 g
13.5
0
−0.4
4.3
±0.6
20.5 ±0.5
P30/19
25
+0.8
0
30
±0.5
0.5
+0.2
0
∅5.4
+0.2
0
13
+0.4
0
18.8
±0.2
Dimensions in mm.
Fig.1 P30/19 core set.
CBW427
Core sets for general purpose transformers and power applications
Clamping force for AL measurements, 250 ±50 N.
GRADE
AL
(nH)
µe
TOTAL AIR GAP
(µm)
3C81
3C91
3F3
250 ±3%
315 ±3%
400 ±3%
630 ±3%
1000 ±3%
8300 ±25%
8300 ±25%
250 ±3%
315 ±3%
400 ±3%
630 ±3%
1000 ±3%
5750 ±25%
≈ 66
≈ 83
≈ 105
≈ 165
≈ 263
≈ 2 180
≈ 2 180
≈ 66
≈ 83
≈ 105
≈ 165
≈ 263
≈ 1 510
≈ 840
≈ 640
≈ 480
≈ 290
≈ 170
≈0
≈0
≈ 840
≈ 640
≈ 480
≈ 290
≈ 170
≈0
TYPE NUMBER
P30/19-3C81-E250
P30/19-3C81-A315
P30/19-3C81-A400
P30/19-3C81-A630
P30/19-3C81-A1000
P30/19-3C81
P30/19-3C91
P30/19-3F3-E250
P30/19-3F3-A315
P30/19-3F3-A400
P30/19-3F3-A630
P30/19-3F3-A1000
P30/19-3F3
2008 Sep 01
1008