B65812K1008D002 EPCOS Inc, B65812K1008D002 Datasheet - Page 5

• Manufacturer Part Number: B65812K1008D002
• Description: EMI/RFI Suppressors & Ferrites COIL FORMER BAKELITE UP 3420
• Manufacturer: EPCOS Inc

Specifications of B65812K1008D002

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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 their special behavior
under mechanical load.
Just like any ceramic material, ferrite cores are brittle and sensitive to any shock, fast changing or
tensile load. Especially fast cooling rates under ultrasonic cleaning, high static and cyclic loads can
cause cracks or failure of the ferrite cores.
For detailed information see Data Book 2007, chapter "General - Definitions, 8.1".
Effects of core combination on A
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 the value for theinitial permeability. Thus, the embedding medium should offer
the greatest possible elasticity.
For detailed information see Data Book 2007, chapter "General - Definitions, 8.2".
Heating up
Ferrites can run hot during operation at higher flux densities and higher frequencies.
NiZn-materials
The magn etic properties of NiZn-materials c
magnetic fields.
Processing notes
– The start of the winding process should be soft. Otherwise, the flanges may be destroyed.
– Excessive winding forces may damage the flanges or squeeze the tube so that the cores can no
– Excessive sold ering time at high temperat
– Not following the p rocessing notes for soldering of the J-leg terminals may cause so lderability
– The dimensions o f the pin hole arrangement are fixed and should b e understood as an ideal
Ferrites and accessories
Cautions and warnings
longer be mounted.
arrangement.
problems at the transformer because of contamination with tin oxide (SnO) from the tin bath or
burned insu lation from the wire . For detailed
"Processing notes, 2.2".
recommendation for drilling the printed circuit board. In order to avoid problems when mounting
the transformer, customers should make allowances for manufacturing tolerances in the drilling
and pick-and-place processes by increasing the diameter of the pin holes.
L
value
an change irreversibly when exp osed to strong
5
ure (>300 ° C) ma y aff ect coplanarity or
10/09
information see Data Boo k 20 07, chapter
pin