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Ferrites and Accessories
PQ35/35 – 4 Pin / 12 Pin – Cores and coil former
B65881A, B65882E
Cores B65881A series
To IEC 62317-13
Delivery mode: sets
Magnetic characteristics (per set)
l/A
l
e
A
e
A
min
V
e
= 0.467
= 79.20
= 169.7
= 146.5
= 13440
mm
-1
mm
mm
2
mm
2
mm
3
Approx. weight :
74 g/set
Dimensions in mm
Ungapped
Material
N87
N97
N95
N92
N49
A
L
value
1)
nH
4500 +30/–20%
4700 +30/–20%
5700 +30/–20%
3300 +30/–20%
3300 +30/–20%
µ
e
1670
1750
2120
1225
1225
P
V
W/Set
< 8.75 (100 kHz, 200 mT, 100 °C)
< 7.10 (100 kHz, 200 mT, 100 °C)
< 7.92 (100 kHz, 200 mT, 25 ... 100 °C)
< 9.50 (100 kHz, 200 mT, 120 °C)
< 10.5 (100 kHz, 200 mT, 100 °C)
< 3.75 (500 kHz, 50 mT, 100 °C)
B65881A0000R092
B65881A0000R049
Ordering code
B65881A0000R087
B65881A0000R097
B65881A0000R095
1) Measurement parameter: 10 kHz, 0.25 mT, 100 turns, room temperature.
A
L
value is measured acc. to IEC62044-2. An appropriate wringing of cores with polished surface is used to improve
reproducibility of the measurement. (It is recommended to rub the mating surfaces themselves six times in a circular or
elliptic arc that matches the core profile before measuring A
L
value).
KA IN FER D PD, SMP IN FER D PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 6
December 2010
Ferrites and Accessories
PQ35/35 – 4 Pin / 12 Pin – Cores and coil former
B65882E0004T001
B65881A, B65882E
Coil former 4 Pin
Material:
GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
F = max. operating temperature 155 °C), color code black
Rynite FR 530 [E41938 (M)], E I DUPONT DE NEMOURS & CO INC
Solderability: IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3.5 s
Sections
1
A
N
mm²
158
l
N
mm
76
A
R
value
µΩ
16,5
Terminals
4
Ordering code
B65882E0004T001
KA IN FER D PD, SMP IN FER D PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 6
December 2010
Ferrites and Accessories
PQ35/35 – 4 Pin / 12 Pin – Cores and coil former
B65882E0004T001
B65881A, B65882E
Coil former 12 Pin
Material:
GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
F = max. operating temperature 155 °C), color code black
Rynite FR 530 [E41938 (M)], E I DUPONT DE NEMOURS & CO INC
Solderability: IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3.5 s
Sections
1
A
N
mm²
158
l
N
mm
76
A
R
value
µΩ
16.5
Terminals
12
Ordering code
B65882E0012T001
KA IN FER D PD, SMP IN FER D PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 6
December 2010
Ferrites and Accessories
PQ35/35 – 4 Pin / 12 Pin – Cores and coil former
B65882E0004T001
B65881A, B65882E
Cautions and warnings
Mechanical stress and mounting
Ferrite cores have to meet mechanical requirements during assembly 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 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 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 magnetic properties of NiZn-materials can change irreversibly when exposed to strong 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
longer be mounted.
– Excessive soldering time at high temperature (>300 °C) may affect 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 contamination with tin oxide (SnO) from the tin bath or
burned insulation from the wire. For detailed information see Data Book 2007, chapter “Processing
notes, 2.2”.
– The dimensions of the pin hole arrangement are fixed and should be understood as an ideal
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.
KA IN FER D PD, SMP IN FER D PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 6
December 2010
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