Chokes for Data and Signal Lines
Double Chokes
Rated voltage 42 Vac/80 Vdc
Rated current 200 to 1000 mA
Rated inductance 5
µH
to 4,7 mH
Construction
s
Current-compensated ring core choke with ferrite core
s
Bifilar winding (B82790-C…)
s
Sector winding (B82790-S…)
B82790-C0***-N2
B82790-S0***-N2
Features
s
Case flame-retardant as per UL 94 V-0
s
Suitable for reflow soldering
Special types for conductive adhesion
and ambient temperatures up to 150˚C on request
Applications
s
B82790-C:
Suppression of asymmetrical interference coupled in on lines,
whereas data signals up to some MHz can pass unaffectedly
s
B82790-S:
Suppression of asymmetrical and symmetrical interference
coupled in on lines. The high-frequency portions of the symmetrical
data signal are decreased so far that EMC problems can be
significantly reduced
Terminals
s
Tinned
Marking
Manufacturer, ordering code (short form),
date of manufacture, coded (year, day of week, calender week)
Delivery mode
Blister tape, reel packing
For details on taping, packing and packing units
see page 302
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Chokes for Data and Signal Lines
Double Chokes
General technical data
Rated voltage
V
R
Rated current
I
R
Rated inductance
L
R
42 Vac (50/60 Hz)
80 Vdc
B82790-C0***-N2
B82790-S0***-N2
Referred to 50 Hz and 60
°C
ambient temperature
Measured with HP 4275A
at
L
≤
1 mH = 100 kHz, 0,1 mA
L
> 1 mH = 10 kHz, 0,1 mA
(specified per winding)
B82790-+****-N201/N215:
±
30 %
B82790-+****-N240/N265: – 30/+ 50 %
< 10 % at dc magnetic bias with
I
R
Measured with HP 4275A.
Measuring frequency at
L
≤
11
µH
= 1 MHz, 5 mA
L
> 11
µH
= 100 kHz, 5 mA
Typical values, measured at 20
°C
ambient temperature
(215 3) ˚C, (3 0,3) s
wetting of soldering area
≥
95 %
in accordance with IEC 60068-2-58
40/125/56 (– 40
°C/+
125
°C/56
days damp heat test)
in accordance with IEC 60068-1
Approx. 0,3 g
Inductance tolerance
Inductance decrease
∆
L/L
0
Stray inductance
L
S
DC resistance
R
typ
Solderability
Climatic category
Weight
Characteristics and ordering codes
L
R
mH
0,005
0,011
0,025
0,051
0,470
1,0
2,2
4,7
L
S, typ
nH
50
50
1500
2000
200
250
250
300
I
R
mA
1000
500
500
500
500
500
400
200
R
typ
mΩ
100
120
130
160
200
200
400
550
V
T
Vdc, 2 s
250
250
250
250
750
750
750
750
Ordering code
1)
B82790-C0502-N201
B82790-C0113-N201
B82790-S0253-N201
B82790-S0513-N201
B82790-C0474-N215
B82790-C0105-N240
B82790-C0225-N265
B82790-C0475-N265
1) Special types for conductive adhesion and ambient temperatures of up to 150 ˚C upon request.
254
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Chokes for Data and Signal Lines
Double Chokes
Insertion loss
α
e
(typical values at
Z
= 50
Ω)
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
B82790-C0502-N201
B82790-C0113-N201
50
dB
α
e
B82790-C0***-N2
B82790-S0***-N2
SSB0871-I
40
30
20
10
0
_
1
10
10
0
10
1
10
2
MHz 10
3
f
B82790-S0253-N201
B82790-S0513-N201
50
dB
α
e
SSB0811-A
40
30
20
10
0
_
1
10
10
0
10
1
10
2
MHz 10
3
f
255
04/00
Chokes for Data and Signal Lines
Double Chokes
Insertion loss
α
e
(typical values at
Z
= 50
Ω)
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
B82790-C0474-N215
50
dB
α
e
α
e
SSB0870-A
B82790-C0***-N2
B82790-S0***-N2
B82790-C0105-N240
50
dB
40
SSB1431-5
40
30
30
20
20
10
10
0
_
2
10
10
_
1
10
0
10
1
MHz 10
2
f
0
_
10
2
10
_
1
10
0
10
1
MHz 10
2
3
f
B82790-C0225-N265
B82790-C0475-N265
50
dB
α
e
SSB1183-4
40
30
20
10
0
_
2
10
10
_
1
10
0
10
1
MHz 10
2
f
256
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