B65812N1005D002 - EPCOS AG

Data SheetData 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 8, RM 8 LP

Cores and accessories

Series/Type: B65811, B65812

209/06

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

Σ l/A

Amin

0.68

35.1

—

1825

0.59

2430

mm–1

mm2

mm3

m10.7 12 g

Material AL value

approx.

µeOrdering code 1)

-D with center hole

-F with threaded sleeve

-J without center hole

N48 250 ± 3% 0.23 134 B65811+0250A048

315 ± 3% 0.17 169 B65811+0315A048

400 ± 3% 0.14 215 B65811+0400A048

630 ± 5% 0.10 338 B65811+0630J048

N41 160 ± 3% 0.49 76 B65811J0160A041

250 ± 5% 0.24 118 B65811J0250J041

630 ± 5% 0.11 298 B65811J0630J041

1600 ±10% 0.04 756 B65811J1600K041

N87 250 ± 3% 0.30 118 B65811J0250A087

400 ± 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

309/06

Please read Cautions and warnings and

Important notes at the end of this document.

Ungapped

Material AL value

µePV

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 °C) B65811J0000R049

N87 3300 +30/–20% 1560 < 1.20 (200 mT, 100 kHz, 100 °C) B65811J0000R087

N97 3300 +30/–20% 1560 < 1.00 (200 mT, 100 kHz, 100 °C) B65811J0000R097

N41 4100 +30/–20% 1940 < 0.37 (200 mT, 25 kHz, 100 °C) B65811J0000R041

B65811Core

RM 8

409/06

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 AN

mm2

AR value

µΩ

Pins Ordering code

130 42 47 5 B65812N1005D001

8 B65812N1008D001

12 B65812N1012D001

228.4 42 50 5 B65812N1005D002

FRM0301-M-E

8.7+0.2

1.35±0.05

0.55±0.050.97±0.05

0.5

5.5±0.3

0.56±0.05

ø1+0.1

2.54

Ground

ø1.3+0.1

0.2ø16.9

ø9.95 0.15

10.65 0.15

11.55

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

509/06

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 AN

mm2

AR value

µΩ

Pins Ordering code

130 42 47 5 B65812K1005D001

8 B65812K1008D001

12 B65812K1012D001

228.4 42 50 8 B65812K1008D002

2.54

ø1+0.1

ø1.3+0.1

Ground

0.97±0.05

ø0.62 max.

ø9.95

ø16.9

0.60±0.05

10.65

11.55

0.15

8.7+0.2

0.2

0.1

5.5±0.3

1.35±0.05

FRM0240-2

60˚

10˚

0.56±0.05

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

609/06

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 AN

mm2

AR value

µΩ

Pins Ordering code

228.4 42 50 8B65812X1108D002

FRM0260-G

8,7+0,2

1,35±0,05

0,55±0,50,9±0,05

ø0,62 max.

0,45 max.

5,5±0,3

0,55±0,05

ø1+0,1

2,54

Erdungspunkte ø1,3+0,1

11 12

65 A

Schnitt C-D Ansicht A

9,95

7,4

0,2ø16,9

ø9,95 0,1

11,5

0,15

0,1510,6

Hole arrangement

View in mounting direction

Ground Ø 1.3+0.1

Section C – D View A

B65812Accessories

RM 8

709/06

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 °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 AN

mm2

AR value

µΩ

Pins Ordering code

130 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

809/06

Please read Cautions and warnings and

Important notes at the end of this document.

Clamp

■With ground terminal, made of stainless spring steel (tinned), 0.4 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

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

FRM0312-3

19.95 0.2

(preliminary data)

B65812Accessories

RM 8

909/06

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

Tube core Ordering code

∅ × length (mm) Material Color code

3.85 × 5.0 N22 gray B65812B3003X022

B65812Accessories

RM 8

10 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)

Σ 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

µePV

W/set

Ordering code

N49 2900 +30/–20% 1020 < 0.33 ( 50 mT, 500 kHz, 100 °C) B65811P0000R049

N92 3100 +30/–20% 1090 < 1.10 (200 mT, 100 kHz, 100 °C) B65811P0000R092

N87 4100 +30/–20% 1440 < 0.92 (200 mT, 100 kHz, 100 °C) B65811P0000R087

B65811PCore

RM 8 »Low Profile«

11 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), 0.4 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

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

FRM0270-N

4,8 max.

0,7 x 0,4

10+0,3

0,20,7

8,7+0,3

0,7 0,2

+0,1

0,2

4,5

FRM0312-3

19.95 0.2

Insulating washer 1

(preliminary data)

Insulating washer 2

B65812Accessories

RM 8 »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 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 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.