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© EPCOS AG 2008. Reproduction, publication and dissemination of this publication, enclosures
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Data and signal line chokes
Common-mode chokes, ring core
4.7 … 50 mH, 100 … 600 mA, 60 °C
Series/Type: B82792C0
Date: April 2008
204/08
Please read Cautions and warnings and
Important notes at the end of this document.
Rated voltage 42 V AC/80 V DC
Rated inductance 4.7 mH to 50 mH
Rated current 100 mA to 600 mA
Construction
■Current-compensated ring core double choke
■Ferrite core
■LCP case (UL 94 V-0)
■Silicone potting
■Bifilar winding
Features
■Suitable for reflow soldering
■RoHS-compatible
Function
Suppression of asymmetrical interference
coupled in on lines, whereas data signals
up to some MHz can pass unaffectedly.
Applications
■Telecom interfaces
■ISDN systems
Terminals
■Base material CuSn6
■Layer composition Ni, Sn
■Hot-dipped
Marking
■Marking on component:
Manufacturer, ordering code, inductance,
date of manufacture (YYWWD)
■Minimum data on reel:
Manufacturer, ordering code, L value and tolerance,
quantity, date of packing
Delivery mode and packing unit
■24-mm blister tape, wound on 330-mm ∅ reel
■Packing unit: 500 pcs./reel
B82792C0Data and sig nal line chokes
Commo n-mo de chokes, rin g co re
304/08
Please read Cautions and warnings and
Important notes at the end of this document.
Dimensional drawing and pin configuration Layout recommendation
Taping and packing
Blister tape Reel
Dimensions in mm
IND0164-H-E
2.5±0.2
3 x 2.5±0.1
11.5 max.
7.3 max.
14±0.4
Marking
10.5 max.
+0.1
0.05
0.6
_
+0.1
_
0.4 0.05
1
2
3
45
6
7
8
1)
...82
1)
8
54
1
0.1
1) Soldering area
1)
1.5 min.
IND0165-V
15
1.6
9
3 x 2.5
Dimensions in mm
IND0423-T
330
+0
2
_
+2
60
_
0
24.4 0
_
+2
30.4 max. 13±0.25
IND0419-1-E Direction of unreeling
2±0.14±0.11.5±0.1
16±0.1
8.1
1.6±0.1 11.5±0.1
1.75±0.1
24±0.3
17.1
B82792C0Data and sig nal line chokes
Commo n-mo de chokes, rin g co re
404/08
Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and measuring conditions
Characteristics and ordering codes
Rated voltage VR42 V AC (50/60 Hz) / 80 V DC
Rated temperature TR60 °C
Rated current IRReferred to 50 Hz and rated temperature
Rated inductance LRMeasured with Agilent 4284A at 10 kHz, 50 mV, 20 °C
Inductance is specified per winding.
Inductance tolerance –30%/+50% at 20 °C
Inductance decrease ΔL/L0< 10% at DC magnetic bias with IR, 20 °C
Stray inductance Lstray,typ Measured with Agilent 4284A at 10 kHz, 50 mV, 20 °C,
typical values
DC resistance Rtyp Measured at 20 °C, typical values, specified per winding
Solderability (lead-free) Sn96.5Ag3.0Cu0.5:( 245 ±5) °C, (3 ±0.3) s
Wetting of soldering area ≥ 95%
(to IEC 60068-2-58)
Resistance to soldering heat (260 ±5) °C, (10 ±1) s (to IEC 60068-2-58)
Climatic category 40/125/56 (to IEC 60068-1)
Storage conditions (packaged) –25 °C … +40 °C, ≤ 75% RH
Weight Approx. 1.3 g
LR
mH Lstray,typ
nH IR
mA Rtyp
mΩ
Vtest
V DC, 2 s Ordering code
4.7 240 600 400 750 B82792C0475N365
6.8 300 600 500 750 B82792C0685N365
10 350 500 1100 750 B82792C0106N365
22 700 200 1600 750 B82792C0226N365
33 850 100 2000 750 B82792C0336N365
50 1100 100 2600 750 B82792C0506N365
B82792C0Data and sig nal line chokes
Commo n-mo de chokes, rin g co re
504/08
Please read Cautions and warnings and
Important notes at the end of this document.
Insertion loss α (typical values at |Z| = 50 Ω, 20 °C)
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
LR = 4.7 mH
LR = 10 mH
LR = 6.8 mH
LR = 22 mH
IND0166-4
0Hz
10
20
30
40
50
dB
4
10 10
5
10
6
10
7
10
8
10
9
f
α
B82792C0475N365
IND0168-7
0Hz
dB
4
10 10
5
10
6
10
7
10
8
10
9
f
α
10
20
30
40
50
60 B82792C0106N365
IND0167-5
0Hz
dB
4
10 105106107108109
f
α
10
20
30
40
50
60 B82792C0685N365
IND0169-9
0Hz
dB
4
10 10
5
10
6
10
7
10
8
10
9
f
α
10
20
30
40
50
60 B82792C0226N365
B82792C0Data and sig nal line chokes
Commo n-mo de chokes, rin g co re
604/08
Please read Cautions and warnings and
Important notes at the end of this document.
Insertion loss α (typical values at |Z| = 50 Ω, 20 °C)
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
LR = 33 mH
Current derating Iop/IR
versus ambient temperature
LR = 50 mH
IND0170-T
0Hz
dB
4
10 10
5
10
6
10
7
10
8
10
9
f
α
10
20
30
40
50
60 B82792C0336N365
0
0
0.2
0.4
20 40 60
1.2
0.6
0.8
1.0
1.4
14010080
IND0681-C-E
C
˚
TA
IR
op
I
TR= 60 C
˚
IND0171-U
0Hz
dB
4
10 10
5
10
6
10
7
10
8
10
9
f
α
10
20
30
40
50
60 B82792C0506N365
B82792C0Data and sig nal line chokes
Commo n-mo de chokes, rin g co re
704/08
Please read Cautions and warnings and
Important notes at the end of this document.
Recommended reflow soldering curve
Pb-free solder material (based on JEDEC J-STD 020C)
Time from 25 °C to T4: max 300 s
Maximal numbers of reflow cycles: 3
T1
°C T2
°C T3
°C T4
°C t1
st2
st3
s
150 200 217 250 < 110 < 90 < 30 @ T4 –5 °C
IND0814-F
1
t
4
T
T3
T2
T1
t2
3
t
B82792C0Data and sig nal line chokes
Commo n-mo de chokes, rin g co re
804/08
Cautions a nd w a rnings
■Please note the recommendations in our Inductors data book (latest edition) and in the data
sheets.
– Particular attention should be paid to the derating curves given there.
– The soldering conditions should also be observed. Temperatures quoted in relation to wave
soldering refer to the pin, not the housing.
■If the components are to be washed varnished it is necessary to check whether the washing
varnish agent that i s used has a negative effect on the wire insulation, any pl astics that are used,
or on glued joints. In particular, it is possible for washing varnish agent residues to have a
negative effect in the long-term on wire insulation.
■The following points must be observed if the components are potted in customer applications:
– Many potting materials shrink as they harden. They therefore exert a pressure on the plastic
housing or core. This pressure can have a deleterious effect on electrical properties, and in
extreme cases can damage the core or plastic housing mechanically.
– It is necessary to check whether the potting material used attacks or destroys the wire
insulation, plastics or glue.
– The effect of the potting material can change the high-frequency behaviour of the components.
■Ferrites are sensitive to direct impact. This can cause the core material to flake, or lead to
breakage of the core.
■Even for customer-specific products, conclusive validation of the component in the circuit can
only be carried out by the customer.
Please read Cautions and warnings and
Important notes at the end of this document.
9 03/09
Important no tes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application.
As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with
them than the cu stomers themsel ves. For these reasons , it is always ul timately incumbent on the
customer to check and decide whether an EPCOS product with the properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or failure
before the end of their usual service life cannot be completely ruled out in the current state
of the art, even if they are operated as specified. In customer applications requiring a very
high level of operational safety and especially in customer applications in which the malfunction
or failure of an electronic component could endanger human life or health (e.g. in accident
prevention or life-saving systems), it must therefore be ensured by means of suitable design of
the customer application or other action taken by the customer (e.g. installation of protective
circuitry or redundancy) that no injury or damage is sustained by third parties in the event of
malfunction or failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our
Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more
detailed questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products.
Consequently, we cannot guarantee that all products named in this publication will always be
available.
The aforementioned does not apply in the case of individual agreements deviating from the
foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current version
of the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, B AOKE, Alu-X, CeraDiode, CSMP, CSSP, CTV S, DSSP, MiniBlue,
MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, SIFERRIT, SIFI, SIKOREL,
SilverCap, SIMDAD, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are
trademarks registered or pending in Europe and in ot her countries. Further informat ion will be
found on the Internet at www.epcos.com/trademarks.
