Data Sheet
Data Sheet
Date:
September 2006
EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet and the
information contained therein without EPCOS' prior express consent is prohibited.
Ferrites and accessories
RM 6, RM 6 LP
Cores and accessories
Series/Type:
B65807, B65808, B65821, B65659
2
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
To IEC 62317-4
Core without center hole
for transformer applications
Delivery mode: sets
Magnetic characteristics (per set)
Approx. weight (per set)
Gapped
with
center hole
without
center hole
l/A
l
e
A
e
A
min
V
e
0.86
26.9
31.3
--
840
0.78
28.6
36.6
31
1050
mm
1
mm
mm
2
mm
2
mm
3
m
4.9
5.1
g
Material
A
L
value
nH
s
approx.
mm
e
Ordering code
1)
-J without center hole
-N with threaded sleeve
-C with center hole
K1
40
3%
0.80
27.4
B65807+0040A001
M33
63
3%
0.60
43.2
B65807+0063A033
100
3%
0.38
68.5
B65807+0100A033
N48
160
3%
0.22
109
B65807+0160A048
250
3%
0.12
171
B65807+0250A048
315
3%
0.08
215
B65807+0315A048
400
3%
0.05
274
B65807+0400A048
N41
250
3%
0.17
155
B65807J0250A041
1) Replace the + by the code letter "C" or "N" for the required version. Standard version is "C".
B65807
Core
RM 6
3
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Ungapped
Material
A
L
value
nH
e
P
V
W/set
Ordering code
-C with center hole
-J without center hole
N48
2200 +30/20% 1500
B65807C0000R048
N45
3500 +30/20% 2180
B65807J0000R045
N30
4300 +30/20% 2670
B65807J0000R030
T35
6200 +30/20% 3860
B65807J0000R035
T38
8600 +40/30% 5350
B65807J0000Y038
T66
12300 +40/30% 7650
B65807J0000Y066
N49
1700 +30/20% 1060
< 0.15 ( 50 mT, 500 kHz, 100
C) B65807J0000R049
N87
2400 +30/20% 1490
< 0.51 (200 mT, 100 kHz, 100
C) B65807J0000R087
N97
2400 +30/20% 1490
< 0.39 (200 mT, 100 kHz, 100
C) B65807J0000R097
N41
3100 +30/20% 1930
< 0.16 (200 mT, 25 kHz, 100
C) B65807J0000R041
B65807
Core
RM 6
4
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Coil former, squared pins
Material:
GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085:
H max. operating temperature 180
C), color code black
Sumikon PM 9630
[E41429 (M)], SUMITOMO BAKELITE CO LTD
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235
C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350
C, 3.5 s
Winding:
see Data Book 2007, chapter "Processing notes, 2.1"
For matching clamp and insulating washers see page 8.
Sections
A
N
mm
2
l
N
mm
A
R
value
Pins
Ordering code
1
15
30
69
4
B65808N1004D001
5
B65808N1005D001
6
B65808N1006D001
2
14
30
73
4
B65808N1004D002
6
B65808N1006D002
FRM0308-A-E
50.3
0.520.05
0.870.06
0.45 max.
6.5+0.15
Ground 1.3+0.1
0.480.06
6
1
2
5
3
6
2
5
3
2.54
1+0.1
0.70.05
1.25
7.45
1+0.1
4
4 pins
5 + 6 pins
0.1
8.65
_
7.85
0.1
_
0.1
_
0.2
12.3
_
0.3
0.1
Pin 4 is omitted
in 5-pin version
View in mounting
Hole arrangement
direction
_
10
50
_
B65808
Accessories
RM 6
5
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Coil former, pins squared in the start-of-winding area
Material:
GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085:
H max. operating temperature 180
C), color code blue
Bakelite UP 3420
[E61040 (M)], HEXION SPECIALTY CHEMICALS GMBH
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235
C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350
C, 3.5 s
Winding:
see Data Book 2007, chapter "Processing notes, 2.1"
For matching clamp and insulating washers see page 8.
Sections
A
N
mm
2
l
N
mm
A
R
value
Pins
Ordering code
1
15
30
69
4
B65808K1004D001
5
B65808K1005D001
6
B65808K1006D001
FRM0309-I-E
50.3
0.520.05
0.870.05
0.52 max.
6.5+0.15
Ground 1.3+0.1
6
1
2
5
3
6
2
5
3
2.54
1+0.1
0.70.05
7.45
1+0.1
4 pins
5 pins
0.1
8.65
_
7.85
0.1
_
0.1
_
0.2
12.3
_
0.45 max.
View in mounting
Hole arrangement
direction
4
6 pins
5
3
2
1
6
10
_
50
B65808
Accessories
RM 6
6
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Coil former for SMPS transformers with line isolation
The creepage distances and clearances are designed such that the coil former is suitable for use
in SMPS transformers with line isolation.
Closed center flange with external wire guide
Pins squared in the start-of-winding area
Optimized for use with automatic winding machines
Material:
GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155
C), color code green
Vyncolit/X611
[E167521 (M)], VYNCOLIT NV
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235
C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350
C, 3.5 s
Winding:
see Data Book 2007, chapter "Processing notes, 2.1"
Sections
A
N
mm
2
l
N
mm
A
R
value
Pins
Ordering code
2
14
30
73
8
B65808X1108D002
FRM0261-P
max.
0,45
50,3
0,470,05
0,80,05
0,52 max.
6,5+0,15
Erdungspunkte 1,3+0,1
1+0,1
0,470,05
8
1
2
6
4
2,54
0,70,05
7
3
5
A
C
D
0,70,05
Schnitt C-D
Ansicht A
6,35
(nur Mittelflansch)
10
50
_
0,2
12,3
_
0,1
4,75
_
0,1
8,6
_
7,8
0,1
_
Hole arrangement
View in mounting direction
Ground 1.3+0.1
View A
Section C D
(only center flange)
B65808
Accessories
RM 6
7
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Coil former for power applications with angled pins
Optimized for automatic winding
Material:
GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155
C), color code black
Valox 420-SE0
[E45329 (M)], GE PLASTICS B V
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235
C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350
C, 3.5 s
Winding:
see Data Book 2007, chapter "Processing notes, 2.1"
For matching clamp and insulating washer 1 see page 8.
Sections
A
N
mm
2
l
N
mm
A
R
value
Pins
Ordering code
1
15
30
69
8
B65808E1508T001
FRM0298-Y
11,2+0,3
8,5+0,2
0,50,1
0,950,1
0,3
0,5
Core
3,81
5,08
12,7
17,78
15,24
Ground 1,3+0,15
1+0,15
6,5+0,2
0,4
18,4
_
0,3
3,3
_
12,3
0,25
_
0,4
16
_
7,95
0,1
_
7,55 0,2
_
2,2
0,2
_
0,3
4,4
_
0,15
2,5
_
Marking of pin 1
1
4
5
8
Hole arrangement
View in mounting direction
B65808
Accessories
RM 6
8
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Clamp
With ground terminal, made of stainless spring steel (tinned), 0.435 mm thick
Solderability to IEC 60068-2-20, test Ta, method 1 (aging 3): 235
C, 2 s
Also available as strip clamp on reels on request
Insulating washer 1 between core and coil former
For tolerance compensation and for insulation
Made of polycarbonate (UL 94 V-0, insulation class to IEC 60085: E 120
C), 0.08 mm thick
Aryphan F685, [E167358 (M)], natural color, LOFO HIGH TECH FILM GMBH
Insulating washer 2 for double-clad PCBs
Made of polycarbonate (UL 94 V-0, insulation class to IEC 60085: E 120
C), 0.3 mm thick
Makrofol DPF 5026, [E41613 (M)], natural color, BAYER MATERIALSCIENCE AG
Clamp
Insulating washer 1
Insulating washer 2
Clamping forces for RM 6
Ordering code
Clamp (ordering code per piece, 2 are required)
B65808A2203X000
Insulating washer 1 (reel packing, PU = 1 reel)
B65808A5000X000
Insulating washer 2 (bulk)
B65808C2005X000
FRM0187-C
9,5+0,2
2,6 max.
+0,2
0,1
10,9
_
+0,1
0,2
4,5
_
0,25
0,85
_
0,25
0,85
_
0,6
FRM0310-L
_
14.95
0.2
14.95 0.2
_
(preliminary data)
FRM0157-Q
Z
max
X
a
F
min
: Extension of clamp from a to a
2
= X
min
F
max
: Extension of clamp from a to a
1
= X
max
Clamp opening a (mm)
9.5 +0.2
Core nose Z
max
(mm)
0.22
Height of core pair X (mm) X
min
X
max
10.1
10.6
Clamping force F (N)
F
min
F
max
7
50
B65808
Accessories
RM 6
9
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
SMD coil former with gullwing terminals
Material:
GFR liquid crystal polymer (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155
C), color code black
Vectra C 130 [E83005 (M)], TICONA
Solderability: to IEC 60068-2-58, test Td, method 6 (Group 3): 245
C, 3 s
Resistance to soldering heat: to IEC 60068-2-58, test Td, method 6 (Group 3): 255
C, 10 s
permissible soldering temperature for wire-wrap connection on coil former: 400
C,1 s
Winding:
see Data Book 2007, chapter "Processing notes, 2.1"
Clamp
Without ground terminal, made of stainless spring steel, 0.435 mm thick
Also available as strip clamp on request
Coil former
Clamp
Sections
A
N
mm
2
l
N
mm
A
R
value
Terminals
Ordering code
1
16.2
31
66
8
B65821C1008T001
Clamp(ordering code per piece, 2 are required)
B65808J2204X000
FRM0311-U-E
0.1
0.60.1
2.5
6.5+0.15
12.7
5.08
3.81
12.7
5.08
3.81
4
3
22.8
0.3
22
_
5
6
0.1
0.05
0.85
2.3
_
0.05
7.95
_
_
1
2
0.40.1
0.2
11.1+0.2
16.7
_
8
7
0.2
_
12.3
7.45
_
0.2
PCB layout
Recommended
1.2
15.5
_
B65821, B65808
Accessories
RM 6
10
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
Adjusting screw
Tube core with thread and core brake made of GFR polyterephthalate
Pocan B3235
[E245249 (M)], LANXESS AG
a
b
c
Figure
Tube core
Ordering code
length (mm) Material
Color code
a
2.62
3.6
N22
red
B65659F0001X023
b
2.75
4.4
N22
black
B65659F0003X023
c
2.82
4.4
N22
yellow
B65659F0004X023
B65659
Accessories
RM 6
11
09/06
Please read Cautions and warnings and
Important notes at the end of this document.
To IEC 62317-4
For compact transformers
Without center hole
Delivery mode: sets
Magnetic characteristics (per set)
l/A = 0.58 mm
1
l
e
= 21.8 mm
A
e
= 37.5 mm
2
A
min
= 31.2 mm
2
V
e
= 820 mm
3
Approx. weight 4.0 g/set
Ungapped
Material
A
L
value
nH
e
P
V
W/set
Ordering code
T38
10500 +40/30%
4860
B65807P0000Y038
N49
2200 +30/20%
1020
< 0.14 ( 50 mT, 500 kHz, 100
C) B65807P0000R049
N92
2300 +30/20%
1060
< 0.44 (200 mT, 100 kHz, 100
C) B65807P0000R092
N87
3000 +30/20%
1390
< 0.40 (200 mT, 100 kHz, 100
C) B65807P0000R087
B65807P
Core
RM 6 Low Profile
12
09/06
Ferrites and accessories
Cautions and warnings
Mechanical stress and mounting
Ferrite cores have to meet mechanical requirements during assembling and for a growing number
of applications. Since ferrites are ceramic materials one has to be aware of the special behavior
under mechanical load.
As valid for any ceramic material, ferrite cores are brittle and sensitive to any shock, fast changing
or tensile load. Especially high cooling rates under ultrasonic cleaning and high static or cyclic loads
can cause cracks or failure of the ferrite cores.
For detailed information see Data Book 2007, chapter "General Definitions, 8.1".
Effects of core combination on A
L
value
Stresses in the core affect not only the mechanical but also the magnetic properties. It is apparent
that the initial permeability is dependent on the stress state of the core. The higher the stresses are
in the core, the lower is the value for the initial permeability. Thus the embedding medium should
have the greatest possible elasticity.
For detailed information see Data Book 2007, chapter "General Definitions, 8.2".
Heating up
Ferrites can run hot during operation at higher flux densities and higher frequencies.
NiZn-materials
The magnetic properties of NiZn-materials can change irreversible in high magnetic fields.
Processing notes
The start of the winding process should be soft. Else the flanges may be destroid.
To strong winding forces may blast the flanges or squeeze the tube that the cores can no more
be mount.
To long soldering time at high temperature (>300 C) may effect coplanarity or pin arrangement.
Not following the processing notes for soldering of the J-leg terminals may cause solderability
problems at the transformer because of pollution with Sn oxyd of the tin bath or burned insulation
of the wire. For detailed information see Data Book 2007, chapter "Processing notes, 2.2".
The dimensions of the hole arrangement have fixed values and should be understood as a
recommendation for drilling the printed circuit board. For dimensioning the pins, the group of
holes can only be seen under certain conditions, as they fit into the given hole arrangement. To
avoid problems when mounting the transformer, the manufacturing tolerances for positioning the
customers' drilling process must be considered by increasing the hole diameter.
13
09/06
Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application. As
a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them
than the customers themselves. For these reasons, it is always ultimately incumbent on the
customer to check and decide whether an EPCOS product with the properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of passive electronic components
or failure before the end of their usual service life cannot be completely ruled out in the
current state of the art, even if they are operated as specified. In customer applications
requiring a very high level of operational safety and especially in customer applications in which
the malfunction or failure of a passive electronic component could endanger human life or health
(e.g. in accident prevention or life-saving systems), it must therefore be ensured by means of
suitable design of the customer application or other action taken by the customer (e.g.
installation of protective circuitry or redundancy) that no injury or damage is sustained by third
parties in the event of malfunction or failure of a passive electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as "hazardous"). Useful information on this will be found in our
Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more
detailed questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products.
Consequently, we cannot guarantee that all products named in this publication will always be
available.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current version
of the "General Terms of Delivery for Products and Services in the Electrical Industry"
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, EPCOS-JONES, Baoke, Alu-X, CeraDiode, CSSP, MLSC,
PhaseCap, PhaseMod, SIFI, SIFERRIT, SIKOREL, SilverCap, SIMID, SIOV, SIP5D, SIP5K,
UltraCap, WindCap are trademarks registered or pending in Europe and in other countries.
Further information will be found on the Internet at www.epcos.com/trademarks.
PDF 
ZIP