FERROXCUBE
DATA SHEET
RM14/I
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
0.353
13900
70.0
198
168
≈
69
UNIT
mm
−1
mm
3
mm
mm
2
mm
2
g
0
O 15 0.6
17
0
42.2
1.4
19
0 5.6
0.6
handbook, halfpage
RM14/I
0
34.7 1.2
27
0.25
20.8
0.6 30.1
0
0.1
1.2
O 29 0
Dimensions in mm.
MGC106
Fig.1 RM14/I core set.
Core sets for general purpose transformers and power applications
Clamping force for A
L
measurements, 80
±20
N.
GRADE
3C90
A
L
(nH)
250
±3%
315
±3%
400
±3%
630
±5%
1000
±5%
6600
±25%
250
±3%
315
±3%
400
±3%
630
±5%
1000
±5%
6600
±25%
8130
±25%
5700
±25%
250
±3%
315
±3%
400
±3%
630
±5%
1000
±5%
5700
±25%
µ
e
≈
70
≈
89
≈
113
≈
177
≈
281
≈
1850
≈
70
≈
89
≈
113
≈
177
≈
281
≈
1850
≈
2290
≈
1600
≈
70
≈
89
≈
113
≈
177
≈
281
≈
1600
AIR GAP
(µm)
≈
1270
≈
950
≈
710
≈
410
≈
240
≈
0
≈
1270
≈
950
≈
710
≈
410
≈
240
≈
0
≈
0
≈
0
≈
1270
≈
950
≈
710
≈
410
≈
240
≈
0
TYPE NUMBER
RM14/I-3C90-A250
RM14/I-3C90-A315
RM14/I-3C90-A400
RM14/I-3C90-A630
RM14/I-3C90-A1000
RM14/I-3C90
RM14/I-3C94-A250
RM14/I-3C94-A315
RM14/I-3C94-A400
RM14/I-3C94-A630
RM14/I-3C94-A1000
RM14/I-3C94
RM14/I-3C95
RM14/I-3C96
RM14/I-3F3-A250
RM14/I-3F3-A315
RM14/I-3F3-A400
RM14/I-3F3-A630
RM14/I-3F3-A1000
RM14/I-3F3
3C94
3C95
3C96
3F3
2008 Sep 01
2
Ferroxcube
RM, RM/I, RM/ILP cores and accessories
Properties of core sets under power conditions
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
°C
≥315
≥315
≥315
≥340
≥315
f = 25 kHz;
ˆ
= 200 mT;
B
T = 100
°C
≤
1.67
−
−
−
−
f = 100 kHz;
ˆ
B = 100 mT;
T = 100
°C
≤
1.76
≤
1.4
−
≤
1.1
≤
1.55
CORE LOSS (W) at
f = 100 kHz; f = 100 kHz; f = 400 kHz;
ˆ
ˆ
ˆ
B = 200 mT; B = 200 mT; B = 50 mT;
T = 25
°C
T = 100
°C
T = 100
°C
−
−
≤
8.76
−
−
−
≤
7.4
≤
8.34
≤
5.6
−
−
−
−
≤
2.6
≤
2.65
RM14/I
f = 500 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
≤
5.2
−
3C90
3C94
3C95
3C96
3F3
2008 Sep 01
3
Ferroxcube
RM, RM/I, RM/ILP cores and accessories
COIL FORMERS
General data
PARAMETER
Coil former material
Pin material
Maximum operating temperature
Resistance to soldering heat
Solderability
SPECIFICATION
RM14/I
phenolformaldehyde (PF), glass reinforced, flame retardant in accordance
with
“UL 94V-0”;
UL file number E167521(M)
copper-tin alloy (CuSn), tin (Sn) plated
180
°C,
“IEC 60085”,
class H
“IEC 60068-2-20”,
Part 2, Test Tb, method 1B, 350
°C,
3.5 s
“IEC 60068-2-20”,
Part 2, Test Ta, method 1
handbook, full pagewidth
33.02
22.86
12.7
0
20.5 0.3
(18.35 min.)
0.75
5
6
7
8
0
1.3 0.1
1
2.54
4
0.2
15.2 0
3
2
1
19.4
10
12
11
9
0
0
∅28.8
0.3
∅16.8
0.1
∅0.8
6.2
Dimensions in mm.
0.15
1.3 0
CBW615
Fig.2 RM14/I coil former; 12-pins.
Winding data and area product for 12-pins RM14/I coil former
NUMBER
OF
SECTIONS
NUMBER
OF
PINS
PIN
POSITIONS
USED
1, 2, 3, 4, 6,
7, 9, 10, 11,
12
all
AVERAGE
LENGTH
OF TURN
(mm)
71
71
WINDING
AREA
(mm
2
)
WINDING
WIDTH
(mm)
AREA
PRODUCT
Ae x Aw
(mm
4
)
22200
22200
TYPE NUMBER
1
1
10
12
112
112
18.4
18.4
CSV-RM14-1S-10P
CSV-RM14-1S-12P
2008 Sep 01
4
Ferroxcube
RM, RM/I, RM/ILP cores and accessories
General data
PARAMETER
Coil former material
Pin material
Maximum operating temperature
Resistance to soldering heat
Solderability
SPECIFICATION
RM14/I
polybutyleneterephtalate (PBT), glass-reinforced, flame retardent in
accordance with
“UL 94V-0”;
UL file number E45329(R)
copper-tin alloy (CuSn), tin (Sn) plated
155
°C,
“IEC 60085”,
class F
“IEC 60068-2-20”,
Part 2, Test Tb, method 1B, 350
°C,
3.5 s
“IEC 60068-2-20”,
Part 2, Test Ta, method 1
20.5 0
−0.3
7.62
5.08
5.08
5.08
5.08
0.8
4
(18 min.)
4.4 0
−0.1
1.3
0.3
46.7
2.54
handbook, full pagewidth
1.6
+0.15
0
28.6 41
∅
28.8 0
∅16.8
0
−0.2
−0.2
∅1
3.7
3.4
31.4
4.8
1.6
+0.15
0
7.1
35.56 19.4 15.2
+0.2
0
CBW535
Dimensions in mm.
Fig.3 RM14/I coil former; 12-pins (DIL).
Winding data and area product for 12-pins RM14/I coil former (DIL)
NUMBER OF
SECTIONS
1
AVERAGE
LENGTH OF
TURN
(mm)
71
WINDING
AREA
(mm
2
)
111
WINDING
WIDTH
(mm)
18.0
AREA
PRODUCT
Ae x Aw
(mm
4
)
22000
TYPE NUMBER
CPV-RM14/I-1S-12PD
2008 Sep 01
5
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