FERROXCUBE U20-16-7

FERROXCUBE
DATA SHEET
U20/16/7
U, I cores and accessories
Supersedes data of September 2004
2008 Sep 01
Ferroxcube
U, I cores and accessories
U20/16/7
CORE SETS
Effective core parameters
SYMBOL
20.8 ± 0.6
PARAMETER
VALUE
UNIT
Σ(I/A)
core factor (C1)
1.21
mm−1
Ve
effective volume
3800
mm3
Ie
effective length
68
mm
Ae
effective area
56
mm2
m
mass of core half
≈9
g
6.4 ± 0.4
8.3
± 0.3
15.6
± 0.2
7.5
0.25
MSA140
Dimensions in mm.
Fig.1 U20/16/7 core half.
Core halves
AL measured on a combination of 2 U cores.
AL
(nH)
µe
3C90
1900 ±25%
≈ 1950
U20/16/7-3C90
3C94
1900 ±25%
≈ 1950
U20/16/7-3C94
GRADE
TYPE NUMBER
3C11
3100 ±25%
≈ 3000
U20/16/7-3C11
3E27
4800 ±25%
≈ 4600
U20/16/7-3E27
Properties of core sets under power conditions
B (mT) at
CORE LOSS (W) at
H = 250 A/m;
f = 25 kHz;
T = 100 °C
f = 25 kHz;
ˆ = 200 mT;
B
T = 100 °C
f = 100 kHz;
ˆ = 100 mT;
B
T = 100 °C
f = 100 kHz;
ˆ = 200 mT;
B
T = 100 °C
3C90
≥320
≤ 0.46
≤ 0.48
−
3C94
≥320
−
≤ 0.36
≤ 2.3
GRADE
2008 Sep 01
1313
Ferroxcube
U, I cores and accessories
U20/16/7
DATA SHEET STATUS DEFINITIONS
DATA SHEET
STATUS
PRODUCT
STATUS
DEFINITIONS
Preliminary
specification
Development
This data sheet contains preliminary data. Ferroxcube reserves the right to
make changes at any time without notice in order to improve design and
supply the best possible product.
Product specification
Production
This data sheet contains final specifications. Ferroxcube reserves the right
to make changes at any time without notice in order to improve design and
supply the best possible product.
DISCLAIMER
Life support applications  These products are not designed for use in life support appliances, devices, or systems
where malfunction of these products can reasonably be expected to result in personal injury. Ferroxcube customers
using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Ferroxcube
for any damages resulting from such application.
PRODUCT STATUS DEFINITIONS
STATUS
INDICATION
DEFINITION
Prototype
These are products that have been made as development samples for the purposes of
technical evaluation only. The data for these types is provisional and is subject to
change.
Design-in
These products are recommended for new designs.
Preferred
These products are recommended for use in current designs and are available via our
sales channels.
Support
These products are not recommended for new designs and may not be available
through all of our sales channels. Customers are advised to check for availability.
2008 Sep 01
1314