B66375G0000X127

7 5/17
Please read Cautions and warnings and
Important notes at the end of this document.
All dimensions are given in mm.
Surface-mount device
Symbol Meaning Unit
α
α
F
α
e
ε
r
Φ
η
η
B
η
i
λ
s
μ
μ
0
μ
a
μ
app
μ
e
μ
i
μ
p
'
μ
p
"
μ
r
μ
rev
μ
s
'
μ
s
"
μ
tot
ρ
Σl/A
τ
Cu
ω
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 μ
(for parallel components)
Relative imaginary (loss) component of μ
(for parallel components)
Relative permeability
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
Magnetic form factor
DC time constant τ
Cu
= L/R
Cu
= A
L
/A
R
Angular frequency; ω = 2 Πf
1/K
1/K
1/K
Vs
mT
-1
A
–1
H
–1/2
Vs/Am
Ωm
–1
mm
–1
s
s
–1
Symbols and terms
Ferrites and accessories
8 5/17
Please read Cautions and warnings and
Important notes at the end of this document.
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.
Important notes

B66375G0000X127

Mfr. #:
Manufacturer:
EPCOS / TDK
Description:
EMI/RFI Suppressors & Ferrites Ferrite Cores & Accessories E80/38/20 N27OL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union