Ferrites and accessories

Transcription

1 Date: May 2017 EPCOS G Reproduction, publication and diemination of thi publication, encloure hereto and the information contained therein without EPCOS prior expre conent i prohibited. EPCOS G i a TDK Group Company.

2 e L L1 min N R B ΔB Bˆ ΔBˆ B DC B R B S C 0 CDF DF d E a f f cutoff f max f min f r f Cu g Ĥ DC c h h/μ i 2 I I DC Î J k k 3 k 3c L Cro ection of coil Effective magnetic cro ection Inductance factor; L = L/N 2 Minimum inductance at defined high aturation ( μ a ) Minimum core cro ection Winding cro ection Reitance factor; R = R Cu /N 2 RMS value of magnetic flux denity Flux denity deviation Peak value of magnetic flux denity Peak value of flux denity deviation DC magnetic flux denity Remanent flux denity Saturation magnetization Winding capacitance Core ditortion factor Relative diaccoodation coefficient DF = d/μ i Diaccoodation coefficient ctivation energy Frequency Cut-off frequency Upper frequency limit Lower frequency limit Reonance frequency Copper filling factor ir gap RMS value of magnetic field trength Peak value of magnetic field trength DC field trength Coercive field trength yterei coefficient of material Relative hyterei coefficient RMS value of current Direct current Peak value of current Polarization Boltzmann contant Third harmonic ditortion Circuit third harmonic ditortion Inductance 2 2 n n 2 2 μ = 10 6 F = /V 4.5 J 1, z 1, z 1, z 1, z 1, z 10 6 cm/ 10 6 cm/ V/m 2 J/K = V/ 2 5/17

3 ΔL/L L 0 L L p L rev L l e l N N P Cu P tran P V PF Q R R Cu R h ΔR h R i R p R R th R V T ΔT T C t t v tan δ tan δ L tan δ r tan δ e tan δ h tan δ/μ i U Û V e Z Z n Relative inductance change Inductance of coil without core Main inductance Parallel inductance Reverible inductance Serie inductance Effective magnetic path length verage length of turn Number of turn Copper (winding) loe Tranferrable power Relative core loe Performance factor Quality factor (Q = ωl/r = 1/tan δ L ) Reitance Copper (winding) reitance (f = 0) yterei lo reitance of a core R h change Internal reitance Parallel lo reitance of a core Serie lo reitance of a core Thermal reitance Effective lo reitance of a core Total air gap Temperature Temperature difference Curie temperature Time Pule duty factor Lo factor Lo factor of coil (Reidual) lo factor at 0 Relative lo factor yterei lo factor Relative lo factor of material at 0 RMS value of voltage Peak value of voltage Effective magnetic volume Complex impedance Normalized impedance Z n = Z /N 2 ε (l e / e ) W W mw/g K/W C K C V V 3 / 3 5/17

4 α α F α e ε r Φ η η B η i λ μ μ 0 μ a μ app μ e μ i μ p ' μ p " μ r μ rev μ ' μ " μ tot ρ Σl/ τ Cu ω Temperature coefficient (TK) Relative temperature coefficient of material Temperature coefficient of effective permeability Relative permittivity Magnetic flux Efficiency of a tranformer yterei material contant yterei core contant Magnetotriction at aturation magnetization Relative complex permeability Magnetic field contant Relative amplitude permeability Relative apparent permeability Relative effective permeability Relative initial permeability Relative real (inductive) component of μ (for parallel component) Relative imaginary (lo) component of μ (for parallel component) Relative permeability Relative reverible permeability Relative real (inductive) component of μ (for erie component) Relative imaginary (lo) component of μ (for erie component) Relative total permeability derived from the tatic magnetization curve Reitivity Magnetic form factor DC time contant τ Cu = L/R Cu = L / R ngular frequency; ω = 2 Πf V mt /2 V/m m ll dimenion are given in. Surface-mount device 4 5/17

5 Important note The following applie to all product named in thi publication: 1. Some part of thi publication contain tatement about the uitability of our product for certain area of application. Thee tatement are baed on our knowledge of typical requirement that are often placed on our product in the area of application concerned. We neverthele exprely point out that uch tatement cannot be regarded a binding tatement about the uitability of our product for a particular cutomer application. a rule, EP- COS i either unfamiliar with individual cutomer application or le familiar with them than the cutomer themelve. For thee reaon, it i alway ultimately incumbent on the cutomer to check and decide whether an EPCOS product with the propertie decribed in the product pecification i uitable for ue in a particular cutomer application. 2. We alo point out that in individual cae, a malfunction of electronic component or failure before the end of their uual ervice life cannot be completely ruled out in the current tate of the art, even if they are operated a pecified. In cutomer application requiring a very high level of operational afety and epecially in cutomer application in which the malfunction or failure of an electronic component could endanger human life or health (e.g. in accident prevention or life-aving ytem), it mut therefore be enured by mean of uitable deign of the cutomer application or other action taken by the cutomer (e.g. intallation of protective circuitry or redundancy) that no injury or damage i utained by third partie in the event of malfunction or failure of an electronic component. 3. The warning, caution and product-pecific note mut be oberved. 4. In order to atify certain technical requirement, ome of the product decribed in thi publication may contain ubtance ubject to retriction in certain juridiction (e.g. becaue they are claed a hazardou). Ueful information on thi will be found in our Material Data Sheet on the Internet ( Should you have any more detailed quetion, pleae contact our ale office. 5. We contantly trive to improve our product. Conequently, the product decribed in thi publication may change from time to time. The ame i true of the correponding product pecification. Pleae check therefore to what extent product decription and pecification contained in thi publication are till applicable before or when you place an order. We alo reerve the right to dicontinue production and delivery of product. Conequently, we cannot guarantee that all product named in thi publication will alway be available. The aforementioned doe not apply in the cae of individual agreement deviating from the foregoing for cutomer-pecific product. 6. Unle otherwie agreed in individual contract, all order are ubject to the current verion of the General Term of Delivery for Product and Service in the Electrical Indutry publihed by the German Electrical and Electronic Indutry ociation (ZVEI). 7. The trade name EPCOS, CeraCharge, CeraDiode, CeraLink, CeraPad, CeraPla, CSMP, CTVS, DeltaCap, DigiSiMic, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell, MKD, MKK, MotorCap, PCC, PhaeCap, PhaeCube, PhaeMod, PhiCap, Powerap, PQSine, PQvar, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDD, SiMic, SIMID, SineFormer, SIOV, ThermoFue, WindCap are trademark regitered or pending in Europe and in other countrie. Further information will be found on the Internet at 5 5/17