Chokes for Data and Signal Lines
Series/Type: B82790C2N3
The following products presented in this data sheet are being withdrawn.
For further information please contact your nearest EPCOS sales office, which will also support
you in selecting a suitable substitute. The addresses of our worldwide sales network are
presented at www.epcos.com/sales.
Ordering Code Substitute Product Date of
Withdrawal Deadline Last
Orders Last Shipments
B82790C2475N340 B82792C2475N365 2002-07-05 2002-12-31 2003-03-31
B82790C2474N315 B82792C2474N315 2002-07-05 2002-12-31 2003-03-31
B82790C2105N340 B82792C2105N365 2002-07-05 2002-12-31 2003-03-31
279 04/00
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
Quad Chokes
280 04/00
Dimensional drawing
Layout recommendation
SSB1240-R
11,5 max.
7,3 max.
7,0 max.
Beschriftung
10,5 max.
max. 0,1 A
2,5±0,2
0,6±0,05
3 x 2,5±0,1
A
0,2+0,2
0,4±0,05
14,0±0,4
2 ... 8
Marking
B82790-C2***-N3Chokes for Data and Signal Lines
Quad Chokes
281 04/00
General technical data
Characteristics and ordering codes
Rated voltage
V
R42 Vac (50/60 Hz)
80 Vdc
Rated current
I
RReferred to 50 Hz and 60 °C ambient temperature
Rated inductance
L
RMeasured with HP 4275A
at
L
≤1 mH = 100 kHz, 10 mV
L
> 1 mH = 10 kHz, 10 mV
(specified per winding)
Inductance tolerance – 30/+ 50 %
Inductance decrease ∆
L
/
L
0< 10 % at dc magnetic bias with
I
R
Stray inductance
L
SMeasured at
L
≤1 mH = 100 kHz, 10 mV
L
> 1 mH = 10 kHz, 10 mV
DC resistance
R
typ 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
L
R
mH
L
S, max
nH
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
B82790-C2***-N3Chokes for Data and Signal Lines
Quad Chokes
282 04/00
Insertion loss αe (typical values at
Z
= 50 Ω)
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
B82790-C2474-N315
B82790-C2475-N340
B82790-C2105-N340
SSB1434-U
0
dB
e
α
10
20
30
40
50
10
_
2
1010
1
0
31010 MHz
12
f
SSB1432-D
010 10 10 10 10MHz
10
20
30
40
50
dB
e
α
210
2
_
1
_
f
SSB1433-L
0
dB
e
α
10
20
30
40
50
10 10 MHz10 10 10 3
2
__
1
012
f
B82790-C2***-N3Chokes for Data and Signal Lines
Quad Chokes
