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Quad Chokes
Rated voltage 42 Vac/80 Vdc
Rated current 200 to 500 mA
Rated inductance 0,47 to 4,7 mH
Construction
■ Current-compensated ring core quad choke with ferrite core
■ Bifilar winding
Features
■ Case flame-retardant as per UL 94 V-0
■ Suitable for reflow soldering
Applications
■ Suppression of asymmetrical interference coupled in on lines,
whereas data signals up to some MHz can pass unaffectedly
■ Use e.g. in telecom applications and RF equipment
Terminals
■ Tinned
Marking
Manufacturer, ordering code,
date of manufacture (month, year)
Delivery mode
Blister tape, reel packing
For details on taping, packing and packing units see page 302
B82790-C2***-N3Chokes for Data and Signal Lines
279 04/00
Quad Chokes
Dimensional drawing
0,6±0,05
11,5 max.
B82790-C2***-N3Chokes for Data and Signal Lines
2,5±0,2
3 x 2,5±0,1
10,5 max.
7,3 max.
A
Beschriftung
7,0 max.
0,2+0,2
Marking
2 ... 8
14,0±0,4
Layout recommendation
0,4±0,05
max. 0,1 A
SSB1240-R
280 04/00
Quad Chokes
General technical data
B82790-C2***-N3Chokes 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
atL≤ 1 mH = 100 kHz, 10 mV
L
> 1 mH = 10 kHz, 10 mV
(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
I
R
Measured atL≤ 1 mH = 100 kHz, 10 mV
L
> 1 mH = 10 kHz, 10 mV
Typical values, measured at 20 °C ambient temperature
Solderability (215 3) ˚C, (3 0,3) s
wetting of soldering area ≥ 95 %
in accordance with IEC 60068-2-58
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
nH
S, max
I
R
mA
R
typ
Ω
V
T
Vdc, 2 s
Ordering code
0,47 200 500 0,25 750 B82790-C2474-N315
1,0 250 500 0,25 750 B82790-C2105-N340
4,7 400 200 0,80 750 B82790-C2475-N340
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Quad Chokes
Insertion loss αe (typical values atZ = 50 Ω)
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
B82790-C2474-N315
50
SSB1434-U
dB
α
e
40
B82790-C2105-N340
50
dB
α
e
40
B82790-C2***-N3Chokes for Data and Signal Lines
SSB1433-L
30
20
10
0
_
10
2
1
B82790-C2475-N340
50
dB
α
e
40
30
20
10
30
20
10
0
__
0
1010
12
31010 MHz
2
10 10 MHz10 10 10 3
f
SSB1432-D
1
0 12
f
0
_
10 10 10 10 10MHz
_
2
1
210
f
282 04/00
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