Ferrites and accessories RM 8, RM 8 LP Cores and accessories Series/Type: B65811, B65812 Date: June 2013 Data Sheet EPCOS AG 2013. Reproduction, publication and dissemination of this data sheet and the information contained therein without EPCOS’ prior express consent is prohibited. RM 8 Core and accessories Individual parts Part no. Page Adjusting screw B65812 10 Core B65811 3 Clamps B65812 9 Insulating washer 1 B65812 9 Coil former B65812 5, 6 Core B65811 3 Insulating washer 2 B65812 9 Coil former for SMPS transformers B65812 7 Coil former for power applications B65812 8 RM 8 low-profile: Core B65811P 11 Clamp B65812 12 Insulating washers 1 + 2 B65812 12 Threaded sleeve (glued-in) Example of an assembly set Also available: Please read Cautions and warnings and Important notes at the end of this document. 2 06/13 RM 8 Core B65811 ■ To IEC 62317-4 ■ Cores without center hole for transformer applications ■ Delivery mode: sets Magnetic characteristics (per set) l/A le Ae Amin Ve with center hole without center hole 0.68 35.1 52 — 1825 0.59 38 64 55 2430 mm–1 mm mm2 mm2 mm3 12 g Approx. weight (per set) m 10.7 Gapped Material N48 AL value nH 250 315 400 630 s e Ordering code 1) -D with center hole -F with threaded sleeve -J without center hole approx. mm 3% 3% 3% 5% 0.23 0.17 0.14 0.10 134 169 215 338 B65811+0250A048 B65811+0315A048 B65811+0400A048 B65811+0630J048 N41 160 3% 250 5% 630 5% 1600 10% 0.49 0.24 0.11 0.04 76 118 298 756 B65811J0160A041 B65811J0250J041 B65811J0630J041 B65811J1600K041 N87 250 3% 400 3% 0.30 0.18 118 189 B65811J0250A087 B65811J0400A087 1) Replace the + by the code letter “F” or “D” for the required version. Standard version is “D”. Please read Cautions and warnings and Important notes at the end of this document. 3 06/13 RM 8 Core B65811 Ungapped Material AL value nH e PV Ordering code -D with center hole -J without center hole W/set 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 Please read Cautions and warnings and Important notes at the end of this document. 4 06/13 RM 8 Accessories B65812 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 2013, chapter “Processing notes, 2.1” For matching clamp and insulating washers see page 9. Sections AN mm2 lN mm AR value Pins Ordering code 1 30 42 47 5 8 12 B65812N1005D001 B65812N1008D001 B65812N1012D001 2 28.4 42 50 5 12 B65812N1005D002 B65812N1012D002 Please read Cautions and warnings and Important notes at the end of this document. 5 06/13 Version Pins omitted 5 pins 8 pins 3, 4, 6, 7, 9, 10, 12 3, 4, 9, 10 RM 8 Accessories B65812 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 white 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 2013, chapter “Processing notes, 2.1” For matching clamp and insulating washers see page 9. Sections AN mm2 lN mm AR value Pins Ordering code 1 30 42 47 5 8 12 B65812P1005D001 B65812P1008D001 B65812P1012D001 2 28.4 42 50 8 B65812P1008D002 12 pins Hole arrangement View in mounting direction Please read Cautions and warnings and Important notes at the end of this document. 6 06/13 Version Pins omitted 5 pins 8 pins 3, 4, 6, 7, 9, 10, 12 3, 4, 9, 10 RM 8 Accessories B65812 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 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 2013, chapter “Processing notes, 2.1” Sections AN mm2 lN mm AR value Pins Ordering code 2 28.4 42 50 8 B65812S1108D002 Please read Cautions and warnings and Important notes at the end of this document. 7 06/13 RM 8 Accessories B65812 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 2013, chapter “Processing notes, 2.1” For matching clamp and insulating washer 1 see page 9. Sections AN mm2 lN mm AR value Pins Ordering code 1 30 42 47 12 B65812C1512T001 Hole arrangement View in mounting direction (Note half pitch!) Please read Cautions and warnings and Important notes at the end of this document. 8 06/13 RM 8 Accessories B65812 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 120 C), 0.25 mm thick Makrofol FR7-2, E118859 (M), natural color, BAYER MATERIALSCIENCE AG ■ Made of polycarbonate (UL 94 V-0, insulation class to IEC 60085: E 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 Clamp Insulating washer 1 (preliminary data) Please read Cautions and warnings and Important notes at the end of this document. Insulating washer 2 9 06/13 RM 8 Accessories B65812 Adjusting screw ■ Tube core with thread and core brake made of GFR polyterephthalate Pocan B3235 ® E245249 (M), LANXESS AG Tube core length (mm) Material Color code Ordering code 3.85 5.0 N22 gray Please read Cautions and warnings and Important notes at the end of this document. B65812B3003X022 10 06/13 RM 8 »Low Profile« Core ■ ■ ■ ■ B65811P To IEC 62317-4 For compact transformers Without center hole Delivery mode: sets Magnetic characteristics (per set) l/A le Ae Amin Ve = 0.44 mm–1 = 28.7 mm = 64.9 mm2 = 55.4 mm2 = 1860 mm3 Approx. weight 9.2 g/set Ungapped AL value nH e 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 Material PV Ordering code W/set Please read Cautions and warnings and Important notes at the end of this document. 11 06/13 RM 8 »Low Profile« Accessories B65812 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 120 C), 0.25 mm thick Makrofol FR7-2, E118859 (M), natural color, BAYER MATERIALSCIENCE AG ■ Made of polycarbonate (UL 94 V-0, insulation class to IEC 60085: E 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 Clamp Insulating washer 1 (preliminary data) Please read Cautions and warnings and Important notes at the end of this document. Insulating washer 2 12 06/13 Ferrites and accessories Cautions and warnings 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 chapter “Definitions”, section 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 chapter “Definitions”, section 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 chapter “Processing notes”, section 8.2. – 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 06/13 Ferrites and accessories Symbols and terms Symbols and terms Symbol Meaning Unit A Ae AL AL1 Amin AN AR B B ˆ B Bˆ BDC BR BS C0 CDF DF d Ea f fcutoff fmax fmin fr fCu g H ˆ H HDC Hc h h/i 2 I IDC ˆI J k k3 k3c L Cross section of coil Effective magnetic cross section Inductance factor; AL = L/N2 Minimum inductance at defined high saturation ( a) Minimum core cross section Winding cross section Resistance factor; AR = RCu /N2 RMS value of magnetic flux density Flux density deviation Peak value of magnetic flux density Peak value of flux density deviation DC magnetic flux density Remanent flux density Saturation magnetization Winding capacitance Core distortion factor Relative disaccommodation coefficient DF = d/i Disaccommodation coefficient Activation energy Frequency Cut-off frequency Upper frequency limit Lower frequency limit Resonance frequency Copper filling factor Air gap RMS value of magnetic field strength Peak value of magnetic field strength DC field strength Coercive field strength Hysteresis coefficient of material Relative hysteresis coefficient RMS value of current Direct current Peak value of current Polarization Boltzmann constant Third harmonic distortion Circuit third harmonic distortion Inductance mm2 mm2 nH nH mm2 mm2 = 10–6 Vs/m2, mT Vs/m2, mT Vs/m2, mT Vs/m2, mT Vs/m2, mT Vs/m2, mT Vs/m2, mT F = As/ V mm–4.5 J s–1, Hz s–1, Hz s–1, Hz s–1, Hz s–1, Hz mm A/m A/m A/m A/m 10–6 cm/A 10–6 cm/A A A A Vs/m2 J/K H = Vs/A 14 06/13 Ferrites and accessories Symbols and terms Symbol Meaning Unit L/L L0 LH Lp Lrev Ls le lN N PCu Ptrans PV PF Q R RCu Rh Rh Ri Rp Rs Rth RV s T T TC t tv tan tanL tanr tane tanh tan/i U Û Ve Z Zn Relative inductance change Inductance of coil without core Main inductance Parallel inductance Reversible inductance Series inductance Effective magnetic path length Average length of turn Number of turns Copper (winding) losses Transferrable power Relative core losses Performance factor Quality factor (Q = L/Rs = 1/tanL) Resistance Copper (winding) resistance (f = 0) Hysteresis loss resistance of a core Rh change Internal resistance Parallel loss resistance of a core Series loss resistance of a core Thermal resistance Effective loss resistance of a core Total air gap Temperature Temperature difference Curie temperature Time Pulse duty factor Loss factor Loss factor of coil (Residual) loss factor at H 0 Relative loss factor Hysteresis loss factor Relative loss factor of material at H 0 RMS value of voltage Peak value of voltage Effective magnetic volume Complex impedance Normalized impedance |Z|n = |Z| /N 2 (le /Ae) H H H H H H mm mm W W mW/g 15 06/13 K/W mm °C K °C s V V mm3 /mm Ferrites and accessories Symbols and terms Symbol Meaning Unit F e r B i s 0 a app e i p' p" r rev s' s" tot Temperature coefficient (TK) Relative temperature coefficient of material Temperature coefficient of effective permeability Relative permittivity Magnetic flux Efficiency of a transformer Hysteresis material constant Hysteresis core constant Magnetostriction at saturation magnetization Relative complex permeability Magnetic field constant Relative amplitude permeability Relative apparent permeability Relative effective permeability Relative initial permeability Relative real (inductive) component of (for parallel components) Relative imaginary (loss) component of (for parallel components) Relative permeability Relative reversible permeability Relative real (inductive) component of (for series components) Relative imaginary (loss) component of (for series components) Relative total permeability derived from the static magnetization curve Resistivity Magnetic form factor DC time constant Cu = L/RCu = AL/AR Angular frequency; = 2 f 1/K 1/K 1/K Vs mT-1 A–1H–1/2 Vs/Am m–1 mm–1 s s–1 l/A Cu All dimensions are given in mm. Surface-mount device 16 06/13 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 lifesaving 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, CeraLink, CSMP, CSSP, CTVS, DeltaCap, DigiSiMic, DSSP, FilterCap, FormFit, MiniBlue, MiniCell, MKD, 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. 17 06/13