Epcos B 82720 – H15 Service Manual
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Double Chokes
Rated voltage 42 Vac/80 Vdc
Rated current 0,2 to 0,7 A
Rated inductance 4,7 to 68 mH
Construction
■ Current-compensated ring core double choke with ferrite core
■ Plastic case
Features
■ Case flame-retardant as per UL 94 V-0
■ Suitable for automatic insertion
Applications
■ Telecom switching systems
■ Terminal systems
■ Measuring and control lines
Terminals
■ Pins fitting standard PCB grid
Marking
Ordering code, rated inductance,
manufacturer, date of manufacture (month, year)
Dimensional drawing
B82720-H15Chokes for Data and Signal Lines
_
_
0,4
9,5
14±0,3
3,5 0,5
7,62
1,5
13±0,3
10,16
Marking
Beschriftung
0,5
Lötspitze
5±0,2
_
0,37,6
SSB1408-6
291 04/00
Double Chokes
Preliminary data
General technical data
B82720-H15Chokes for Data and Signal Lines
Rated voltage
Rated current
Rated inductance
V
R
I
R
L
R
42 Vac (50/60 Hz); 80 Vdc
Referred to 50 Hz and 60 °C ambient temperature
Measured with HP 4275A at 10 kHz and 0,1 mA
(specified per winding)
Inductance tolerance – 30 %/+ 50 %
Inductance decrease ∆L/
Stray inductance
DC resistance
R
typ
L
0
L
S
< 10 % at dc magnetic bias with
Measured at 10 kHz and 5 mA
I
R
Typical values, measured at 20 °C ambient temperature
Climatic category 40/125/56 (– 40 °C/+ 125 °C/56 days damp heat test)
in accordance with IEC 60068-1
Weight Approx. 2 g
Characteristics and ordering codes
L
mH
R
L
µH
S, typ
I
R
mA
R
typ
Ω
V
T
Vdc, 2 s
Ordering code
4,7 0,9 700 0,5 750 B82720-H15-A16
10 1,2 600 0,7 750 B82720-H15-A25
28 1,8 400 1,2 750 B82720-H15-A28
47 2,0 300 2,7 750 B82720-H15-A30
68 3,0 200 3,3 750 B82720-H15-A35
Impedance |Z|
versus frequency
5
Z
||
10
Ω
f
SSB1411-Q
292 04/00
10
10
10
4
3
2
10
B82720-H15-A35
B82720-H15-A30
B82720-H15-A28
B82720-H15-A25
B82720-H15-A16
1
10
2
10
3
104kHz
f
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