B64290L616X38 EPCOS Inc, B64290L616X38 Datasheet - Page 2

• Manufacturer Part Number: B64290L616X38
• Manufacturer: EPCOS Inc

Specifications of B64290L616X38

• Lead Free Status / RoHS Status: Compliant

Our product line includes a wide range of toroids with finely graded diameters ranging from 2.5 to
202 mm.
Other core heights can be supplied on request. All cores are available in the usual materials.
Applications
■
■
Coating
Toroids are available in different coating versions, thus offering the appropriate solution for every
application. The coating not only offers protection for the edges but also provides an insulation func-
tion.
For small ring cores, we have introduced a parylene coating which features a low coating thickness
and high dielectric strength.
Coatings of ring cores
Version
Main application
Layer thickness
Breakdown voltage
(minimum values)
Mechanical quality
Maximum temperature (short-time) approx. 180 °C
Advantage
UL rating
Ordering code
Please read Important notes
and Cautions and warnings.
Toroids (ring cores)
General information
Toroids (ring cores)
Toroids are primarily used as EMC chokes for suppressing RF interference in the MHZ region
and in signal transformers.
Typical applications for toroids of NiZn ferrites are LAN chokes. One of the materials available
for this purpose is K10; other materials on request.
The following high-permeability MnZn materials are available for interference suppression:
– R 2.5 through R 12.5 for telecommunications, e.g. ISDN (N30, T38, T46)
– R 13.3 through R 26 for power line chokes (N30, T65, T35, T37, T38)
– >R 34 for chokes and filters in industrial use (T65)
Toroids are also increasingly used for power applications. Here, the typical values for amplitude
permeability and power loss, as summarized in the section on “SIFERRIT Materials” (page 1),
are applicable to the special power materials.
Epoxy
(blue)
Medium/big sizes (≥ R 9.53)
< 0.4 mm
> 1.0 kV (for R 9.53; R 10)
> 1.5 kV (for R 12.5 thru R 20)
> 2.0 kV (for > R 20)
High firmness
Low influence on A
UL 94 V-0
B64290L…
2
09/06
L
value
Parylene
(transparent)
Small sizes (< R 9.53)
0.012 or 0.025 mm
> 1 kV
(standard value)
Smooth surface
approx. 130 °C
Very low thickness
UL 94 V-0
B64290P…