Ferrites and accessories E 30/15/7 Core and accessories Series/Type: B66319, B66232 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.

E 30/15/7 Core B66319 ■ Delivery mode: single units Magnetic characteristics (per set) Σl/A = 1.12 mm–1 l = 67 mm e A = 60 mm2 e A = 49 mm2 min V = 4000 mm3 e Approx. weight 22 g/set Ungapped Material A value μ P Ordering code L e V nH W/set N30 3100 +30/–20% 2760 B66319G0000X130 N27 1700 +30/–20% 1510 < 0.81 (200 mT, 25 kHz, 100 °C) B66319G0000X127 N87 1900 +30/–20% 1690 < 2.20 (200 mT, 100 kHz, 100 °C) B66319G0000X187 Gapped (A values/air gaps examples) L Material g A value μ Ordering code L e approx. ** = 27 (N27) mm nH ** = 87 (N87) N27, 0.10 ±0.02 460 410 B66319G0100X1** N87 0.18 ±0.02 300 265 B66319G0180X1** 0.34 ±0.02 195 175 B66319G0340X1** 0.50 ±0.05 145 130 B66319G0500X1** 1.00 ±0.05 90 80 B66319G1000X1** The A value in the table applies to a core set comprising one ungapped core (dimension g = 0 mm) L and one gapped core (dimension g > 0 mm). Other A values/air gaps and materials available on request ─ see Processing remarks on page 6. L Please read Cautions and warnings and 2 5/17 Important notes at the end of this document.

E 30/15/7 Core B66319 Calculation factors (for formulas, see “E cores: general information”) Material Relationship between Calculation of saturation current air gap – A value L K1 (25 °C) K2 (25 °C) K3 (25 °C) K4 (25 °C) K3 (100 °C) K4 (100 °C) N27 90 –0.708 156 –0.847 144 –0.865 N87 90 –0.708 154 –0.796 140 –0.873 Validity range: K1, K2: 0.10 mm < s < 2.00 mm K3, K4: 560 nH < A < 60 nH L Please read Cautions and warnings and 3 5/17 Important notes at the end of this document.

E 30/15/7 Accessories B66232 Coil former (magnetic axis horizontal or vertical) Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085: F max. operating temperature 155 °C), color code black B66232B: Valox 420-SE0 [E207780 (M)] SABIC JAPAN L L C [ ] B66232J: Pocan B4235® E245249 (M) , LANXESS AG 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 Yoke Material: Stainless spring steel (0.4 mm) Coil former Ordering code Version Sections A l A value Pins N N R mm2 mm μΩ Horizontal 1 90 56 21 14 B66232B1114T001 Vertical 1 90 56 21 12 B66232J1112T001 Yoke (ordering code per piece, 2 are required) B66232A2010X000 Horizontal version Please read Cautions and warnings and 4 5/17 Important notes at the end of this document.

E 30/15/7 Accessories B66232 Vertical version Yoke Please read Cautions and warnings and 5 5/17 Important notes at the end of this document.

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 tempera- ture 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, chapter “General - Definitions, 8.1”. Effects of core combination on A value L 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, chapter “General - Definitions, 8.1”. 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. Ferrite Accessories EPCOS ferrite accessories have been designed and evaluated only in combination with EPCOS ferrite cores. EPCOS explicitly points out that EPCOS ferrite accessories or EPCOS ferrite cores may not be compatible with those of other manufacturers. Any such combination requires prior te- sting by the customer and will be at the customer‘s own risk. EPCOS assumes no warranty or reliability for the combination of EPCOS ferrite accessories with cores and other accessories from any other manufacturer. Processing remarks The start of the winding process should be soft. Else the flanges may be destroyed. – Too strong winding forces may blast the flanges or squeeze the tube that the cores can not be mounted any more. – Too long soldering time at high temperature (>300 °C) may effect coplanarity or pin arrange- ment. – Not following the processing notes for soldering of the J-leg terminals may cause solderability problems at the transformer because of pollution with Sn oxyde of the tin bath or burned insula- tion of the wire. For detailed information see chapter “Processing notes”, section 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. Please read Cautions and warnings and 6 5/17 Important notes at the end of this document.

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. Detailed information can be found on the Internet under www.epcos.com/orderingcodes. Please read Cautions and warnings and 7 5/17 Important notes at the end of this document.

Ferrites and accessories Symbols and terms Symbols and terms Symbol Meaning Unit A Cross section of coil mm2 A Effective magnetic cross section mm2 e A Inductance factor; A = L/N2 nH L L A Minimum inductance at defined high saturation ( μ ) nH L1 a A Minimum core cross section mm2 min A Winding cross section mm2 N A Resistance factor; A = R /N2 μΩ = 10–6 Ω R R Cu B RMS value of magnetic flux density Vs/m2, mT Δ B Flux density deviation Vs/m2, mT Bˆ Peak value of magnetic flux density Vs/m2, mT Δ Bˆ Peak value of flux density deviation Vs/m2, mT B DC magnetic flux density Vs/m2, mT DC B Remanent flux density Vs/m2, mT R B Saturation magnetization Vs/m2, mT S C Winding capacitance F = As/V 0 CDF Core distortion factor mm–4.5 DF Relative disaccommodation coefficient DF = d/μ i d Disaccommodation coefficient E Activation energy J a f Frequency s–1, Hz f Cut-off frequency s–1, Hz cutoff f Upper frequency limit s–1, Hz max f Lower frequency limit s–1, Hz min f Resonance frequency s–1, Hz r f Copper filling factor Cu g Air gap mm H RMS value of magnetic field strength A/m Hˆ Peak value of magnetic field strength A/m H DC field strength A/m DC H Coercive field strength A/m c h Hysteresis coefficient of material 10–6 cm/A h/μ 2 Relative hysteresis coefficient 10–6 cm/A i I RMS value of current A I Direct current A DC ˆI Peak value of current A J Polarization Vs/m2 k Boltzmann constant J/K k Third harmonic distortion 3 k Circuit third harmonic distortion 3c L Inductance H = Vs/A Please read Cautions and warnings and 8 5/17 Important notes at the end of this document.

Ferrites and accessories Symbols and terms Symbol Meaning Unit Δ L/L Relative inductance change H L Inductance of coil without core H 0 L Main inductance H H L Parallel inductance H p L Reversible inductance H rev L Series inductance H s l Effective magnetic path length mm e l Average length of turn mm N N Number of turns P Copper (winding) losses W Cu P Transferrable power W trans P Relative core losses mW/g V PF Performance factor Q Quality factor (Q = ωL/R = 1/tan δ ) s L R Resistance Ω R Copper (winding) resistance (f = 0) Ω Cu R Hysteresis loss resistance of a core Ω h Δ R R change Ω h h R Internal resistance Ω i R Parallel loss resistance of a core Ω p R Series loss resistance of a core Ω s R Thermal resistance K/W th R Effective loss resistance of a core Ω V s Total air gap mm T Temperature °C Δ T Temperature difference K T Curie temperature °C C t Time s t Pulse duty factor v tan δ Loss factor tan δ Loss factor of coil L tan δ (Residual) loss factor at H → 0 r tan δ Relative loss factor e tan δ Hysteresis loss factor h tan δ/μ Relative loss factor of material at H → 0 i U RMS value of voltage V Û Peak value of voltage V V Effective magnetic volume mm3 e Z Complex impedance Ω ε Z Normalized impedance |Z| = |Z| /N2 × (l /A ) Ω /mm n n e e Please read Cautions and warnings and 9 5/17 Important notes at the end of this document.

Ferrites and accessories Symbols and terms Symbol Meaning Unit α Temperature coefficient (TK) 1/K α Relative temperature coefficient of material 1/K F α Temperature coefficient of effective permeability 1/K e ε Relative permittivity r Φ Magnetic flux Vs η Efficiency of a transformer η Hysteresis material constant mT-1 B η Hysteresis core constant A–1H–1/2 i λ Magnetostriction at saturation magnetization s μ Relative complex permeability μ Magnetic field constant Vs/Am 0 μ Relative amplitude permeability a μ Relative apparent permeability app μ Relative effective permeability e μ Relative initial permeability i μ ' Relative real (inductive) component of μ (for parallel components) p μ " Relative imaginary (loss) component of μ (for parallel components) p μ Relative permeability r μ Relative reversible permeability rev μ ' Relative real (inductive) component of μ (for series components) s μ " Relative imaginary (loss) component of μ (for series components) s μ Relative total permeability tot derived from the static magnetization curve ρ Resistivity Ω m–1 Σl/A Magnetic form factor mm–1 τ DC time constant τ = L/R = A /A s Cu Cu Cu L R ω Angular frequency; ω = 2 Πf s–1 All dimensions are given in mm. Surface-mount device Please read Cautions and warnings and 10 5/17 Important notes at the end of this document.

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 require- ments that are often placed on our products in the areas of application concerned. We never- theless 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, EP- COS 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 spec- ification is suitable for use in a particular customer application. 2. We also point out that in individual cases, a malfunction of electronic components or fail- ure 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 mal- function or failure of an electronic component could endanger human life or health (e.g. in acci- dent prevention or life-saving systems), it must therefore be ensured by means of suitable de- sign of the customer application or other action taken by the customer (e.g. installation of pro- tective 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 pub- lication may contain substances subject to restrictions in certain jurisdictions (e.g. be- cause 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. Consequent- ly, 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, CeraCharge, CeraDiode, CeraLink, CeraPad, CeraPlas, CSMP, CTVS, DeltaCap, DigiSiMic, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell, MKD, MKK, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PowerHap, PQSine, PQvar, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, 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. Please read Cautions and warnings and 11 5/17 Important notes at the end of this document.