FERROXCUBE
DATA SHEET
EQ25/LP
EQ cores and accessories
Supersedes data of September 2004
2008 Sep 01
Ferroxcube
EQ cores and accessories
CORES
Effective core parameters of a EQ/LP/PLT
combination
SYMBOL
Σ(I/A)
V
e
I
e
A
e
A
min
m
m
PARAMETER
core factor (C1)
effective volume
effective length
effective area
minimum area
mass of core half
mass of plate
VALUE
0.294
2370
26.4
89.7
82.8
≈
8.2
≈
4.9
UNIT
mm
−1
mm
3
mm
mm
2
mm
2
g
g
25
±
0.4
22
±
0.4
15.2
±
0.7
11
±
0.2
3.2
handbook, halfpage
± 0.15
EQ25/LP
5.6
±
0.05
18
±
0.3
MFP004
Dimensions in mm.
Fig.1 EQ25/LP core.
Ordering information for plates
GRADE
3C94
3C95
3C96
3F35
3F4
3F45
TYPE NUMBER
PLT25/18/2-3C94
PLT25/18/2-3C95
PLT25/18/2-3C96
PLT25/18/2-3F35
PLT25/18/2-3F4
PLT25/18/2-3F45
handbook, halfpage
25
±
0.4
2.3
±
0.05
18
±
0.3
R1.0
MFP007
Dimensions in mm.
Fig.2 PLT25/18/2.
2008 Sep 01
2
Ferroxcube
EQ cores and accessories
Core halves for use in combination with a plate (PLT)
A
L
measured in combination with a plate (PLT), clamping force for A
L
measurements, 40
±20
N.
GRADE
3C94
3C95
3C96
3F35
3F4
3F45
A
L
(nH)
6100
±
25 %
7130
±
25 %
5600
±
25 %
4350
±
25 %
3100
±
25 %
3100
±
25 %
µ
e
≈
1430
≈
1670
≈
1310
≈
1020
≈
725
≈
725
AIR GAP
(µm)
≈
0
≈
0
≈
0
≈
0
≈
0
≈
0
EQ25/LP
TYPE NUMBER
EQ25/LP-3C94
EQ25/LP-3C95
EQ25/LP-3C96
EQ25/LP-3F35
EQ25/LP-3F4
EQ25/LP-3F45
Properties of core sets under power conditions
B (mT) at
CORE
COMBINATION
EQ/LP+PLT25-3C94
EQ/LP+PLT25-3C95
EQ/LP+PLT25-3C96
EQ/LP+PLT25-3F35
H = 250 A/m;
f = 10 kHz;
T = 100
°C
≥
320
≥
320
≥
340
≥
300
f = 100 kHz;
ˆ
B = 100 mT;
T = 100
°C
≤
0.21
−
≤
0.16
−
CORE LOSS (W) at
f = 100 kHz;
ˆ
B = 200 mT;
T = 25
°C
−
≤
1.4
−
−
f = 100 kHz;
ˆ
B = 200 mT;
T = 100
°C
≤
1.4
≤
1.33
≤
1.1
−
f = 500 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
≤
0.89
≤
0.32
Properties of core sets under power conditions (continued)
B (mT) at
CORE
COMBINATION
EQ/LP+PLT25-3F35
EQ/LP+PLT25-3F4
EQ/LP+PLT25-3F45
H = 250 A/m;
f = 10 kHz;
T = 100
°C
≥
300
≥
300
≥
300
f = 500 kHz;
ˆ
B = 100 mT;
T = 100
°C
≤
2.5
−
−
CORE LOSS (W) at
f = 1 MHz;
ˆ
B = 30 mT;
T = 100
°C
−
≤
0.71
≤
0.54
f = 1 MHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
≤
2.0
f = 3 MHz;
ˆ
B = 10 mT;
T = 100
°C
−
≤
1.14
≤
0.95
2008 Sep 01
3
Ferroxcube
EQ cores and accessories
DATA SHEET STATUS DEFINITIONS
DATA SHEET
STATUS
Preliminary
specification
Product specification
PRODUCT
STATUS
Development
DEFINITIONS
EQ25/LP
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.
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.
Production
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
Prototype
Design-in
Preferred
Support
INDICATION
DEFINITION
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.
These products are recommended for new designs.
These products are recommended for use in current designs and are available via our
sales channels.
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
4
