Ferrites and accessories RM 10, RM 10 LP Core and accessories Series/Type: B65813, B65814, B65679 Date: May 2017 EPCOS AG 2017. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS’ prior express consent is prohibited. EPCOS AG is a TDK Group Company.
RM 10 Core and accessories Individual parts Part no. Page Adjusting screw B65679 8 Core B65813 3 Clamps B65814 7 Insulating washer 1 B65814 7 Coil former B65814 5 Core B65813 3 Insulating washer 2 B65814 7 Coil former for power applications B65814 6 B65813P 9 Threaded sleeve (glued-in) Example of an assembly set Also available: RM 10 low-profile: Core Please read Cautions and warnings and Important notes at the end of this document.
RM 10 Core B65813 ■ To IEC 62317-4 ■ Cores without center hole for transformer applications ■ Delivery mode: sets Magnetic characteristics (per set) Σl/A le Ae Amin Ve with center hole without center hole 0.5 42 83 — 3490 0.45 44 98 90 4310 mm–1 mm mm2 mm2 mm3 22 g Approx. weight (per set) m 20.7 Gapped (AL values/air gaps examples) Material AL value s nH approx. mm μe Ordering code 1) -D with center hole -N with threaded sleeve -J without center hole N48 400 ± 3% 630 ± 3% 0.21 0.
RM 10 Core B65813 Ungapped Material AL value μe nH PV Ordering code W/set -J without center hole N30 7600 +30/–20% 2720 B65813J0000R030 T38 16000 +40/–30% 5720 B65813J0000Y038 N49 2900 +30/–20% 1040 < 0.75 ( 50 mT, 500 kHz, 100 °C) B65813J0000R049 N87 4200 +30/–20% 1500 < 2.30 (200 mT, 100 kHz, 100 °C) B65813J0000R087 N97 4200 +30/–20% 1500 < 2.00 (200 mT, 100 kHz, 100 °C) B65813J0000R097 N41 5500 +30/–20% 1960 < 0.
RM 10 Accessories B65814 Coil former Material: GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085: F max. operating temperature 155 °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 Processing notes, 2.1 Pins: Squared pins For matching clamp and insulating washers see page 7.
RM 10 Accessories B65814 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)] SABIC INNOVATIVE 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 Processing notes, 2.
RM 10 Accessories B65814 Clamp ■ With ground terminal, made of spring steel (tinned), 0.4 mm thick ■ Solderability to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s 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 °C), 0.
RM 10 Accessories B65679 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 4.55 × 6.3 N22 red B65679E0003X022 4.98 × 6.3 N22 black B65679E0002X022 Please read Cautions and warnings and Important notes at the end of this document.
RM 10 »Low Profile« Core ■ ■ ■ ■ B65813P To IEC 62317-4 For compact transformers Without center hole Delivery mode: sets Magnetic characteristics (per set) Σl/A le Ae Amin Ve = 0.34 mm–1 = 33.9 mm = 99.1 mm2 = 90.0 mm2 = 3360 mm3 Approx. weight 17.2 g/set Ungapped Material AL value μe nH PV Ordering code W/set N49 3700 +30/–20% 1000 < 0.62 ( 50 mT, 500 kHz, 100 °C) B65813P0000R049 N92 4000 +30/–20% 1090 < 1.90 (200 mT, 100 kHz, 100 °C) B65813P0000R092 N87 5200 +30/–20% 1410 < 1.
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 temperature changing or tensile load.
Ferrites and accessories Cautions and warnings Display of ordering codes for EPCOS products The ordering code for one and the same product can be represented differently in data sheets, data books, other publications and the website of EPCOS, or in order-related documents such as shipping notes, order confirmations and product labels. The varying representations of the ordering codes are due to different processes employed and do not affect the specifications of the respective products.
Ferrites and accessories Symbols and terms Symbols and terms Symbol Meaning Unit A Ae AL AL1 Amin AN AR B ΔB B̂ ΔB̂ BDC BR BS C0 CDF DF d Ea f fcutoff fmax fmin fr fCu g H Ĥ HDC Hc h h/μi 2 I IDC Î J k k3 k3c L Cross section of coil Effective magnetic cross section Inductance factor; AL = L/N2 Minimum inductance at defined high saturation ( μa) Minimum core cross section Winding cross section Resistance factor; AR = RCu /N2 RMS value of magnetic flux density Flux density deviation Peak value of magnet
Ferrites and accessories Symbols and terms Symbol Meaning Unit ΔL/L L0 LH Lp Lrev Ls le lN N PCu Ptrans PV PF Q R RCu Rh ΔRh Ri Rp Rs Rth RV s T ΔT TC t tv tan δ tan δL tan δr tan δe tan δh tan δ/μi 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
Ferrites and accessories Symbols and terms Symbol Meaning Unit α αF αe εr Φ η ηB ηi λs μ μ0 μa μapp μe μi μ p' μ p" μr μrev μs' μs" μtot 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 permeabili
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.
