HDSL MAGNETICS Surface Mount Transformer TM9958 • Designed for use with Globespan transceiver IC • Designed to meet domestic and international safety requirements for supplementary insulation • Minimum creepage and clearance distance of 2.5mm • UL, CSA and BABT approved Operating temperature range -40° C to +85° C • Minimum interwinding breakdown voltage of 3000 Vrms • ELECTRICAL SPECIFICATIONS at 25° C DCR Ω max Inductance mH min Chip : Line Line Chip Side Line Side Line 1.0 : 2.0 23 6.00 2.50 30.0 Part Number 2810G Leakage Inductance µH max Turns Ratio ± 3% Interwinding Capacitance pF max 40 SCHEMATIC 2810G 1 8 3 6 2 7 4 Chip 5 Line ©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 T516 HDSL MAGNETICS Surface Mount Transformer TM9958 MECHANICAL 0.200 [5.08] typ 1.200 max [30.48] 2810G Terminal #1 ID 0.860 ref [21.84] 0.400 [10.16] max 0.005 [0.13] min 0.040 [1.02] ref Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters]. 0.710 [18.03] 0.355 [9.02] 0.110 [2.79] 0.120 [3.05] Reference 0.070 x 0.070 [1.78 x 1.78] Terminal Foot (8 places) 0.315 [8.00] Component Outline 0.885 [22.48] ref 0.595 1.225 [15.11] [31.11] ∅0.065 ± 0.005 [1.65 ± 0.13] Pilot hole required by component guide pin. (2 places) 0.860 [21.84] ref Suggested PCB Pad Layout Tape and reel packaging: 150 parts/reel ©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 T517