206/11
Please read Cautions and warnings and
Important notes at the end of this document.
■To IEC 62317-4
■Cores without center hole
for transformer applications
■Delivery mode: sets
Magnetic characteristics (per set)
Approx. weight (per set)
Gapped
with
center hole
without
center hole
6 l /A
le
Ae
Amin
Ve
0.68
35.1
52
—
1825
0.59
38
64
55
2430
mm–1
mm
mm2
mm2
mm3
m 10.7 12 g
Material AL value
nH
s
…
approx.
mm
PeOrdering code 1)
-D with center hole
-F with threaded sleeve
-J without center hole
N48 250 r 3% 0.23 134 B65811+0250A048
315 r 3% 0.17 169 B65811+0315A048
400 r 3% 0.14 215 B65811+0400A048
630 r 5% 0.10 338 B65811+0630J048
N41 160 r 3% 0.49 76 B65811J0160A041
250 r 5% 0.24 118 B65811J0250J041
630 r 5% 0.11 298 B65811J0630J041
1600 r10% 0.04 756 B65811J1600K041
N87 250 r 3% 0.30 118 B65811J0250A087
400 r 3% 0.18 189 B65811J0400A087
1) Replace the + by the code letter “F” or “D” for the required version. Standard version is “D”.
B65811Core
RM 8
306/11
Please read Cautions and warnings and
Important notes at the end of this document.
Ungapped
Material AL value
nH
PePV
W/set
Ordering code
-D with center hole
-J without center hole
N48 2900 +30/–20% 1550 B65811D0000R048
N30 5700 +30/–20% 2690 B65811J0000R030
T38 12500 +40/–30% 5910 B65811J0000Y038
N49 2200 +30/–20% 1040 < 0.37 ( 50 mT, 500 kHz, 100 qC) B65811J0000R049
N87 3300 +30/–20% 1560 < 1.20 (200 mT, 100 kHz, 100 qC) B65811J0000R087
N97 3300 +30/–20% 1560 < 1.00 (200 mT, 100 kHz, 100 qC) B65811J0000R097
N41 4100 +30/–20% 1940 < 0.37 (200 mT, 25 kHz, 100 qC) B65811J0000R041
B65811Core
RM 8
406/11
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 qC), 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 qC, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 qC, 3.5 s
Winding: see Data Book 2007, chapter “Processing notes, 2.1”
For matching clamp and insulating washers see page 8.
Sections AN
mm2
lN
mm
AR value
P:
Pins Ordering code
1 30 42 47 5 B65812N1005D001
8 B65812N1008D001
12 B65812N1012D001
2 28.4 42 50 5 B65812N1005D002
Version Pins omitted
5 pins
8 pins
3, 4, 6, 7, 9, 10, 12
3, 4, 9, 10
B65812Accessories
RM 8
506/11
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 qC), color code white
Bakelite UP 3420 ® >E61040 (M)@, HEXION SPECIALTY CHEMICALS GMBH
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 qC, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 qC, 3.5 s
Winding: see Data Book 2007, chapter “Processing notes, 2.1”
For matching clamp and insulating washers see page 8.
Sections AN
mm2
lN
mm
AR value
P:
Pins Ordering code
1 30 42 47 5 B65812P1005D001
8 B65812P1008D001
12 B65812P1012D001
2 28.4 42 50 8 B65812P1008D002
Hole arrangement
View in mounting direction
12 pins
Version Pins omitted
5 pins
8 pins
3, 4, 6, 7, 9, 10, 12
3, 4, 9, 10
B65812Accessories
RM 8
606/11
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 180 qC), 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 qC, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 qC, 3.5 s
Winding: see Data Book 2007, chapter “Processing notes, 2.1”
Sections AN
mm2
lN
mm
AR value
P:
Pins Ordering code
2 28.4 42 50 8 B65812S1108D002
Hole arrangement
View in mounting direction
B65812Accessories
RM 8
706/11
Please read Cautions and warnings and
Important notes at the end of this document.
Coil former for power applications
Optimized for automatic winding
Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155 qC), color code black
Valox 420-SE0 ® >E45329 (M)@, GE PLASTICS BV
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 qC, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 qC, 3.5 s
Winding: see Data Book 2007, chapter “Processing notes, 2.1”
For matching clamp and insulating washer 1 see page 8.
Sections AN
mm2
lN
mm
AR value
P:
Pins Ordering code
1 30 42 47 12 B65812C1512T001
Hole arrangement
View in mounting direction
(Note half pitch!)
Ground Ø 1.3+0.1
Marking of pin 1
B65812Accessories
RM 8
806/11
Please read Cautions and warnings and
Important notes at the end of this document.
Clamp
■With ground terminal, made of stainless spring steel (tinned), 0.4 mm thick
■Solderability to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 qC, 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 polyarylate film (UL 94 V-0, insulation class to IEC 60085: E 120 qC), 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 qC), 0.25 mm thick
Makrofol FR, >E118859 (M)@, natural color, BAYER MATERIALSCIENCE AG
Clamp
Ordering code
Clamp (ordering code per piece, 2 are required) B65812A2203X000
Insulating washer 1 (reel packing, PU = 1 reel) B65812A5000X000
Insulating washer 2 (bulk) B65812C2005X000
FRM0105-8
0.1
+0.2
_
14.9
13.6
+0.2
0.1
_
+0.1
0.2
4.5
_
4.8 max.
0.7x0.4
0.7
_
0.20.7 0.2
_
Insulating washer 1 Insulating washer 2
(preliminary data)
B65812Accessories
RM 8
906/11
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
Tube core Ordering code
u length (mm) Material Color code
3.85 u 5.0 N22 gray B65812B3003X022
B65812Accessories
RM 8
10 06/11
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)
6 l /A = 0.44 mm–1
le= 28.7 mm
Ae= 64.9 mm2
Amin = 55.4 mm2
Ve= 1860 mm3
Approx. weight 9.2 g/set
Ungapped
Material AL value
nH
PePV
W/set
Ordering code
N49 2900 +30/–20% 1020 < 0.33 ( 50 mT, 500 kHz, 100 qC) B65811P0000R049
N92 3100 +30/–20% 1090 < 1.10 (200 mT, 100 kHz, 100 qC) B65811P0000R092
N87 4100 +30/–20% 1440 < 0.92 (200 mT, 100 kHz, 100 qC) B65811P0000R087
B65811PCore
RM 8 »Low Profile«
11 06/11
Please read Cautions and warnings and
Important notes at the end of this document.
Clamp
■With ground terminal, made of stainless spring steel (tinned), 0.4 mm thick
■Solderability to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 qC, 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 polyarylate film (UL 94 V-0, insulation class to IEC 60085: E 120 qC), 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 qC), 0.25 mm thick
Makrofol FR, >E118859 (M)@, natural color, BAYER MATERIALSCIENCE AG
Clamp
Ordering code
Clamp (ordering code per piece, 2 are required) B65812P2203X000
Insulating washer 1 (reel packing, PU = 1 reel) B65812A5000X000
Insulating washer 2 (bulk) B65812C2005X000
Insulating washer 1…
(preliminary data)
Insulating washer 2
B65812Accessories
RM 8 »Low Profile«
12 06/11
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 their special behavior
under mechanical load.
Just like any ceramic material, ferrite cores are brittle and sensitive to any shock, fast changing or
tensile load. Especially fast cooling rates under ultrasonic cleaning, high static and 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 AL 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 the value for the initial permeability. Thus, the embedding medium should offer
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 irreversibly when exposed to strong
magnetic fields.
Processing notes
– The start of the winding process should be soft. Otherwise, the flanges may be destroyed.
– Excessive winding forces may damage the flanges or squeeze the tube so that the cores can no
longer be mounted.
– Excessive soldering time at high temperature (>300 °C) may affect 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 contamination with tin oxide (SnO) from the tin bath or
burned insulation from the wire. For detailed information see Data Book 2007, chapter
"Processing notes, 2.2".
–The dimensions of the pin hole arrangement are fixed and should be understood as an ideal
recommendation for drilling the printed circuit board. In order to avoid problems when mounting
the transformer, customers should make allowances for manufacturing tolerances in the drilling
and pick-and-place processes by increasing the diameter of the pin holes.
13 06/11
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 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 an 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 an 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. The aforementioned does not apply in the case of individual agreements deviating
from the foregoing for customer-specific products.
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, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DeltaCap,
DigiSiMic, DSSP, MiniBlue, MiniCell, MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube,
PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID,
SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, 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.
