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