FERROXCUBE
DATA SHEET
RM7/ILP
RM, RM/I, RM/ILP cores and
accessories
Supersedes data of September 2004
2008 Sep 01
Ferroxcube
RM, RM/I, RM/ILP cores and accessories
CORE SETS
Effective core parameters
SYMBOL
Σ(I/A)
V
e
I
e
A
e
A
min
m
PARAMETER
core factor (C1)
effective volume
effective length
effective area
minimum area
mass of set
VALUE
0.520
1 060
23.5
45.3
39.6
≈
6.0
UNIT
mm
−1
mm
3
mm
mm
2
mm
2
g
>9.3
20.3 0
−0.8
∅7.25
handbook, halfpage
RM7/ILP
17.2
0
−0.7
3.3
0
−0.3
7.6
±0.25
4.7
+0.5
0
9.8
0
−0.2
CBW129
∅15.4
max.
Dimensions in mm.
Fig.1 RM7/ILP core set.
Core sets for general purpose transformers and power applications
Clamping force for A
L
measurements 40
±20
N.
GRADE
3C90
3F3
3F4
A
L
(nH)
3650
±25%
3100
±25%
1800
±25%
µ
e
≈
1510
≈
1280
≈
740
AIR GAP
(µm)
≈
0
≈
0
≈
0
TYPE NUMBER
RM7/ILP-3C90
RM7/ILP-3F3
RM7/ILP-3F4
Properties of core sets under power conditions
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
°C
≥320
≥300
≥250
f = 25 kHz;
ˆ
= 200 mT;
B
T = 100
°C
≤
0.13
−
−
f = 100 kHz;
ˆ
B = 100 mT;
T = 100
°C
≤
0.14
≤
0.12
−
CORE LOSS (W) at
f = 400 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
≤
0.20
−
f = 1 MHz;
ˆ
B = 30 mT;
T = 100
°C
−
−
≤
0.32
f = 3 MHz;
ˆ
B = 10 mT;
T = 100
°C
−
−
≤
0.5
3C90
3F3
3F4
2008 Sep 01
1240
Ferroxcube
RM, RM/I, RM/ILP cores and accessories
MOUNTING PARTS
General data
ITEM
Clamping force
Clip material
Type number
≈20
N
stainless steel (CrNi)
CLI-RM7/ILP
8.8
RM7/ILP
SPECIFICATION
2.7
handbook, halfpage
R16
6.7
CBW622
Dimensions in mm.
Fig.2 Mounting clip for RM7/ILP.
2008 Sep 01
1241
Ferroxcube
RM, RM/I, RM/ILP cores and accessories
DATA SHEET STATUS DEFINITIONS
DATA SHEET
STATUS
Preliminary
specification
Product specification
PRODUCT
STATUS
Development
DEFINITIONS
RM7/ILP
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
1242
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