EP20-3C81 FERROXCUBE [Ferroxcube International Holding B.V.], EP20-3C81 Datasheet - Page 2

• Manufacturer Part Number: EP20-3C81
• Description: EP cores and accessories
• Manufacturer: FERROXCUBE [Ferroxcube International Holding B.V.]

Ferroxcube
CORE SETS
Effective core parameters
Core sets for general purpose transformers and power applications
Clamping force for A
2008 Sep 01
SYMBOL
Σ(I/A)
V
I
A
A
m
3C81
3C91
3C94
3C96
e
e
GRADE
e
min
EP cores and accessories
core factor (C1)
effective volume
effective length
effective area
minimum area
mass of set
PARAMETER
4435 ±25%
4900 ±25%
4900 ±25%
3850 ±25%
L
160 ±3%
250 ±3%
315 ±3%
400 ±3%
630 ±5%
160 ±3%
250 ±3%
315 ±3%
400 ±3%
630 ±5%
measurements, 60 ±20 N.
(nH)
A
L
0.520
41.1
78.7
60.8
≈27
VALUE
3230
≈ 1840
≈ 2040
≈ 2040
≈ 1600
≈ 262
≈ 104
≈ 131
≈ 166
≈ 262
≈ 104
≈ 131
≈ 166
≈ 67
≈ 67
µ
mm
mm
mm
mm
mm
g
e
UNIT
−1
3
2
2
712
handbook, halfpage
Dimensions in mm.
TOTAL AIR GAP
≈ 790
≈ 460
≈ 350
≈ 260
≈ 150
≈ 790
≈ 460
≈ 350
≈ 260
≈ 150
(µm)
± 0.35
≈ 0
≈ 0
≈ 0
≈ 0
± 0.2
21.4
15
MBG178
± 0.2
4.5
Fig.1 EP20 core set.
;;;
;;;
;;;
;;;
16.5 ± 0.4
24 ± 0.5
EP20-3C81-E160
EP20-3C81-A250
EP20-3C81-A315
EP20-3C81-A400
EP20-3C81-A630
EP20-3C81
EP20-3C91
EP20-3C94-E160
EP20-3C94-A250
EP20-3C94-A315
EP20-3C94-A400
EP20-3C94-A630
EP20-3C94
EP20-3C96
TYPE NUMBER
8.8 ± 0.25
± 0.3
14.4
EP20