EPCOS B82791-H2351-N1 Chokes for power lines current-compensated ring core double choke Datasheet

Chokes for Power Lines
B82791-H
Current-Compensated Ring Core Double Chokes
B82791-G
Rated voltage 250 Vac
Rated current 0,25 to 0,7 A
Rated inductance 4,7 to 47 mH
Construction
■ Current-compensated ring core double choke
with ferrite core
■ Polycarbonate case
■ Without potting
■ Sector winding
Features
■ Vertical and horizontal versions
■ Case flame-retardant as per UL 94 V-0
■ High resonance frequency owing to special
winding technique and omission of potting
■ > 1 % stray inductance for symmetrical
interference suppression
Applications
■ Compact and narrow electronic lamp ballasts
■ Telecom applications such as NTBA, PCMx
■ Integrated power supplies for video recorders,
■
■
■
■
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
■ Fitting PCB standard grid
Marking
Ordering code, rated current, rated inductance,
rated voltage, manufacturer, date of manufacture
Approvals
Approval marks
Standards
EN 60938-2
UL 1283
341 04/00
Chokes for Power Lines
B82791-H
Current-Compensated Ring Core Double Chokes
B82791-G
Dimensional drawing and pin configuration
Vertical version (B82791-H)
Horizontal version (B82791-G)
General technical data
Test voltage VT
1500 Vac, 2 s (line/line)
Rated current IR
Referred to 50 Hz and 40 °C ambient temperature
Inductance tolerance
− 30/+ 50 %
Weight
Approx. 3 g
For further technical data see page 334
Characteristics and ordering codes
IR
A
LR
mH
LS, typ
µH
Rtyp
mΩ
Ordering code
vertical version
horizontal version
0,25
0,3
0,35
0,4
0,5
0,6
0,7
47
30
22
15
10
6,8
4,7
750
400
350
225
150
100
70
2400
2200
1900
1350
1000
630
440
B82791-H2251-N20
B82791-H2301-N1
B82791-H2351-N1
B82791-H2401-N1
B82791-H2501-N1
B82791-H2601-N1
B82791-H2701-N1
B82791-G2251-N20
B82791-G2301-N1
B82791-G2351-N1
B82791-G2401-N1
B82791-G2501-N1
B82791-G2601-N1
B82791-G2701-N1
342 04/00
Chokes for Power Lines
B82791-H
Current-Compensated Ring Core Double Chokes
B82791-G
Impedance |Z | versus frequency f
(measured with windings in parallel)
SSB1397-L
10 6
Ω
Z
10 5
10 4
-
10 3
10 2
10 1 4
10
10 5
*2251-N20
*2301-N1
*2351-N1
*2401-N1
*2501-N1
*2601-N1
*2701-N1
10 6
Hz 10 7
f
343 04/00
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