Epcos B 82720 – H14 Service Manual
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Quad Chokes
Rated voltage 42 Vac/80 Vdc
Rated current 0,2 to 0,3 A
Rated inductance 4,7 to 10 mH
Construction
■ Current-compensated ring core quad 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-H14Chokes 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
5,08
Marking
Beschriftung
0,5
(2,54)
5±0,2
_
0,37,6
Lötspitze
SSB1409-E
298 04/00
Quad Chokes
General technical data
B82720-H14Chokes for Data and Signal Lines
Rated voltage
V
R
42 Vac (50/60 Hz)
80 Vdc
Rated current
Rated inductance
I
R
L
R
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
R
mH
L
µH
S, typ
I
R
mA
R
typ
Ω
V
T
Vdc, 2 s
Ordering code
4,7 0,9 300 0,9 750 B82720-H14-A16
10 1,1 200 1,3 750 B82720-H14-A25
Impedance |Z|
versus frequency
5
10
f
Z
||
Ω
SSB1410-H
299 04/00
10
10
10
4
3
2
10
B82720-H14-A25
B82720-H14-A16
1
10
2
10
3
104kHz
f
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