B65820W1008D001 EPCOS Inc, B65820W1008D001 Datasheet - Page 7

• Manufacturer Part Number: B65820W1008D001
• Description: EMI/RFI Suppressors & Ferrites COIL FORMER SUMIKON PM 9630
• Manufacturer: EPCOS Inc

Specifications of B65820W1008D001

• 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 the initial 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 m agnetic pr operties of NiZn- materials can ch ange irreversibly whe n e xposed to st rong
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 sol dering ti me at
– Not following the processing notes for soldering of the J-leg terminals may cause solderability
– The dimensions of the pin ho le arrangement are fixed and should be understood as a n 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 insulation from the wir e. Fo r detailed i nformation se e Da ta Bo ok 2 007, ch apter
"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.
high temperature (>300 °C) may affect
L
value
7
03/11
coplanarity or pin