ISDN MAGNETICS UPO Interface Transformer • TM9942 Minimum interwinding breakdown voltage of 1500 Vrms ELECTRICAL SPECIFICATIONS at 25° C Part Number S559-6204-12 Turns Ratio ± 2% 1CT : 2 Primary Inductance* mH min 1.70 DCR Ω max Leakage Inductance µH max 11 Interwinding Capacitance pF max Pri Sec 2.8 6.8 60 * Measured at 10 kHz, 0.1 Vac SCHEMATIC Compatible Transceiver ICs IC Mfr S559-6204-12 1CT : 2 IC Part Number 8 Siemens 1 PEB2096 6 CT 7 5 4 ©1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com T336 ISDN MAGNETICS UPO Interface Transformer TM9942 MECHANICAL Terminal 1 ID .385 [9.78] max .090 [2.29] typ S559-6204-12 .325 [8.26] max Terminal foot 0.025 x 0.050 [0.60 x 1.30] Bobbin outline .320 [8.20] typ .055 [1.40] .393 [9.98] max .380 [9.70] typ .055 [1.40] .090 [2.30] .037 [0.94] .510 [12.95] max .325 [8.30] .080 [2.00] .530 [13.50] Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters]. Suggested PCB Pad Layout ©1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 198 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite F23, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com T337