B64290L0626X038 [TDK]
Ferrites and accessories;型号: | B64290L0626X038 |
厂家: | TDK ELECTRONICS |
描述: | Ferrites and accessories |
文件: | 总7页 (文件大小:156K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Ferrites and accessories
Toroids
R 25.3 × 14.8 × 15.0
Series/Type:
B64290L0615
Date:
July 2014
Data Sheet
EPCOS AG 2015. 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.
R 25.3 × 14.8 × 15.0
B64290L0615
■ Epoxy coating
R 25.3 × 14.8 × 15.0 (mm)
R 0.996 × 0.583 × 0.590 (inch)
Dimensions
da (mm)
di (mm)
Height (mm) da (inch)
di (inch)
Height (inch)
25.3 ±0.5
14.8 ±0.5
15.0 ±0.4
0.996 ±0.020 0.583 ±0.020 0.590 ±0.016 uncoated1)
26.6 max. 13.5 min.
16.2 max.
1.047 max. 0.531 min. 0.638 max. coated
Characteristics and ordering codes
Mate- AL value
rial
μi
Ordering code
Magnetic characteristics
Approx.
weight
(approx.)
Σl/A
mm–1 mm
60.07
le
Ae
Ve
mm2
mm3
nH
g
N87
N30
T65
T37
T38
3500 ±25% 2200
6930 ±25% 4300
B64290L0615X087 0.78
B64290L0615X830
B64290L0615X065
B64290L0615X037
B64290L0615X038
76.89
4619
24
8000 ±30% 5000
10460 ±25% 6500
16100 ±30% 10000
N87: PV (200 mT, 100 kHz, 100 °C) < 3 W/core
1) On request
Please read Cautions and warnings and
Important notes at the end of this document.
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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 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.
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Ferrites and accessories
Symbols and terms
Symbol
Meaning
Unit
A
Cross section of coil
mm2
Ae
AL
AL1
Amin
AN
AR
B
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
mm2
nH
nH
mm2
mm2
μΩ = 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
Ω
ΔB
ˆ
B
Peak value of magnetic flux density
Peak value of flux density deviation
DC magnetic flux density
Remanent flux density
ˆ
ΔB
BDC
BR
BS
C0
CDF
DF
d
Saturation magnetization
Winding capacitance
Core distortion factor
Relative disaccommodation coefficient DF = d/μi
Disaccommodation coefficient
Activation energy
Ea
J
f
Frequency
s–1, Hz
s–1, Hz
s–1, Hz
s–1, Hz
s–1, Hz
fcutoff
fmax
fmin
fr
Cut-off frequency
Upper frequency limit
Lower frequency limit
Resonance frequency
fCu
g
Copper filling factor
Air gap
mm
H
ˆ
H
RMS value of magnetic field strength
Peak value of magnetic field strength
DC field strength
A/m
A/m
HDC
Hc
h
A/m
Coercive field strength
A/m
Hysteresis coefficient of material
Relative hysteresis coefficient
RMS value of current
10–6 cm/A
10–6 cm/A
A
h/μi2
I
IDC
Direct current
A
ˆ
I
Peak value of current
A
J
Polarization
Vs/m2
k
Boltzmann constant
J/K
k3
k3c
L
Third harmonic distortion
Circuit third harmonic distortion
Inductance
H = Vs/A
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Ferrites and accessories
Symbols and terms
Symbol
Meaning
Unit
ΔL/L
L0
Relative inductance change
Inductance of coil without core
Main inductance
H
H
LH
H
Lp
Parallel inductance
H
Lrev
Ls
Reversible inductance
Series inductance
H
H
le
Effective magnetic path length
Average length of turn
Number of turns
mm
mm
lN
N
PCu
Ptrans
PV
Copper (winding) losses
Transferrable power
W
W
Relative core losses
mW/g
PF
Q
Performance factor
Quality factor (Q = ωL/Rs = 1/tan δL)
Resistance
R
Ω
RCu
Rh
Copper (winding) resistance (f = 0)
Hysteresis loss resistance of a core
Rh change
Ω
Ω
ΔRh
Ri
Ω
Internal resistance
Ω
Rp
Parallel loss resistance of a core
Series loss resistance of a core
Thermal resistance
Ω
Rs
Ω
Rth
RV
s
K/W
Ω
Effective loss resistance of a core
Total air gap
mm
°C
K
T
Temperature
ΔT
TC
Temperature difference
Curie temperature
°C
s
t
Time
tv
Pulse duty factor
tan δ
tan δL
tan δr
tan δe
tan δh
tan δ/μi
U
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
V
Û
V
mm3
Ve
Z
Complex impedance
Ω
2
ε
Zn
Normalized impedance |Z|n = |Z| /N × (le/Ae)
Ω/mm
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Ferrites and accessories
Symbols and terms
Symbol
Meaning
Unit
α
Temperature coefficient (TK)
1/K
1/K
1/K
αF
αe
εr
Relative temperature coefficient of material
Temperature coefficient of effective permeability
Relative permittivity
Φ
Magnetic flux
Vs
η
Efficiency of a transformer
ηB
ηi
Hysteresis material constant
mT-1
A–1H–1/2
Hysteresis core constant
λs
μ
Magnetostriction at saturation magnetization
Relative complex permeability
μ0
μa
μapp
μe
μi
Magnetic field constant
Vs/Am
Relative amplitude permeability
Relative apparent permeability
Relative effective permeability
Relative initial permeability
μp'
μp"
μr
Relative real (inductive) component of μ (for parallel components)
Relative imaginary (loss) component of μ (for parallel components)
Relative permeability
μrev
μs'
μs"
μtot
Relative reversible permeability
Relative real (inductive) component of μ (for series components)
Relative imaginary (loss) component of μ (for series components)
Relative total permeability
derived from the static magnetization curve
Resistivity
ρ
Ωm–1
mm–1
s
Σl/A
τCu
ω
Magnetic form factor
DC time constant τCu = L/RCu = AL/AR
Angular frequency; ω = 2 Πf
s–1
All dimensions are given in mm.
Surface-mount device
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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 re-
quirements 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 incum-
bent on the customer to check and decide whether an EPCOS product with the properties de-
scribed 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 Ma-
terial Data Sheets on the Internet (www.epcos.com/material). Should you have any more de-
tailed 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 fore-
going 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, Alu-X, CeraDiode, CeraLink, CeraPlas, CSMP, CSSP, CTVS,
DeltaCap, DigiSiMic, DSSP, FilterCap, FormFit, MiniBlue, MiniCell, MKD, MKK, MLSC,
MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PQSine, SIFERRIT, SIFI,
SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, TFAP,
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.
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