EMC
Components
Chokes for Power Lines
Current-Compensated Ring Core Double Chokes
B82791-H/G
Data Book Supplement
Power Line Chokes
Current-Compensated Ring Core Double Chokes
B82791-H/G
Rated voltage 250 V~
Rated current 0,25 to 0,7 A
Rated inductance 4,7 bis 47 mH
Construction
q
Current-compensated ring core double choke
with ferrite core
q
Polycarbonate case
q
Without potting
q
Sector winding
Vertical version
Features
q
Vertical and horizontal versions
q
Case flame-retardant as per UL 94 V-0
q
High resonant frequency owing to special winding
technique and no potting compound
q
Approx. 1 % stray inductance for symmetrical
interference suppression
Applications
q
Compact and small electronic ballasts in lamps
q
Telecom applications such as NTBA, PCMx
q
Integrated power supplies for video recorders,
Horizontal version
q
q
q
q
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portable TVs, SAT-receivers, set-top boxes,
video-on-demand
Automation, e. g. sensor modules with integrated
power supplies
Electronic transformers, e. g. for halogen lamps
Plug-in and portable power supplies and chargers for
cellular and cordless phones
Compact, modular and desktop power supplies
Terminals
q
Pins in lead spacing
Marking
Ordering code, rated current, rated inductance, manufacturer, date code
Approvals
Marks of conformity
Standards
vertical version
EN 138 100 (pending)
UL 1283
(pending)
horizontal version
EN 138 100 (pending)
UL 1283
(pending)
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Siemens Matsushita Components
B82791-H/G
Outline drawing and pin configuration
vertical version (B82791-H)
horizontal version (B82791-G)
Technical data
Test voltage
V
P
Rated current
I
R
Inductance tolerance
Weight
1500 Vac, 2 s (line/line)
Referred to 50 Hz and 40
°C
ambient temperature
−30
%/+50 %
Approx. 3 g
/home/SMC-Allg/Datenblaetter/KO-dt-eng/B82791-H-G-e_11-97
For further details refer to data book “EMC Components” 1996, page 179.
Characteristics and ordering codes
I
R
A
0,25
0,3
0,35
0,4
0,5
0,6
0,7
L
R
mH
47
30
22
15
10
6,8
4,7
L
Stray, typ
µH
750
400
350
225
150
100
70
R
typ
mΩ
3500
2200
1900
1350
1000
630
440
Ordering code
vertical version
B82791-H2251-N1
B82791-H2301-N1
B82791-H2351-N1
B82791-H2401-N1
B82791-H2501-N1
B82791-H2601-N1
B82791-H2701-N1
horizontal version
B82791-G2251-N1
B82791-G2301-N1
B82791-G2351-N1
B82791-G2401-N1
B82791-G2501-N1
B82791-G2601-N1
B82791-G2701-N1
Siemens Matsushita Components
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B82791-H/G
Impedance
Z
versus frequency
f
(measured with windings in parallel)
/home/SMC-Allg/Datenblaetter/KO-dt-eng/B82791-H-G-e_11-97
Published by Siemens Matsushita Components GmbH & Co. KG
Marketing Kommunikation, Postfach 80 17 09, D-81617 München
©
Siemens Matsushita Components 1997. All Rights Reserved.
As far as patents or other rights of third parties are concerned, liability is only assumed for compo-
nents per se, not for applications, processes and circuits implemented within components or
assemblies.
The information describes the type of component and shall not be considered as assured
characteristics.
Terms of delivery and rights to change design reserved.
This brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of Siemens AG,
Passive Components and Electron Tubes Group, in the Federal Republic of Germany or the inter-
national Siemens Companies and Representatives.
Due to technical requirements components may contain dangerous substances. For information on
the type in question please also contact one of our Sales Offices.
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