HIGH FREQUENCY MAGNETICS T1/E1 Mini-Octal Transformer Module • Optimized for all Dallas 3.3V devices and Intel LXT380, LXT381 devices • Eight transformers in a single surface mount package • Miniature octal 32-pin platform provides 33% area reduction compared to standard octal package • Electrically identical to S553-6500-B9 • Meets ITU-T G.703 return loss from -40° to +85° C • UL 1950 approved: file number E150991 TM01123 • Operating temperature range -40° to +85°C • Meets IEC 695, 2-2 flammability requirements • PWB Process Capability: standard printed wiring board assembly techniques, total-immersion cleaning • Reliability testing: Shock, vibration, temperature cycling, temperature - humidity - bias • Interwinding breakdown voltage: 1500 Vrms min ELECTRICAL SPECIFICATIONS at 25° C Turns Ratio ±2% Primary Inductance at 10 kHz Leakage Inductance at 1 MHz IC : Line mH min µH max DCR Ω max Capacitance pF max Part Number S553-6500-C8 IC Side Line Side TX RX TX RX TX RX TX RX TX RX 1:2 1:1 1.5 1.8 0.3 0.5 0.6 0.6 1.2 0.6 Winding to Winding 35 Return Loss at 102 kHz 120Ω Application1 25° C dB typ -40 to +85° C dB min TX RX TX RX 19 30 18 19 1. Terminated in 23.2 Ω for TX and 120 Ω for RX SCHEMATIC S553-6500-C8 Line Side IC Side 1 TXI+ 1 1 TXI- 2 1 RXO+ 3 1:2 31 1 TXO1:1 1 RXO- 4 2 TXI+ 5 2 TXI- 9 4 TXI- 4 RXO- 16 22 3 RXI+ 21 3 RXI- 1:2 20 4 TXO+ 19 4 TXO- 14 4 RXO+ 15 24 3 TXO+ 23 3 TXO- 1:1 3 RXO- 12 4 TXI+ 13 26 2 RXI+ 25 2 RXI- 1:2 3 TXI- 10 3 RXO+ 11 28 2 TXO+ 27 2 TXO- 1:1 2 RXO- 8 3 TXI+ 30 1 RXI+ 29 1 RXI- 1:2 6 2 RXO+ 7 32 1 TXO+ 1:1 18 4 RXI+ 17 4 RXI©2001 Bel Fuse Inc. Specifications subject to change without notice. 12.01 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 1 HIGH FREQUENCY MAGNETICS T1/E1 Mini-Octal Transformer Module TM01123 MECHANICAL S553-6500-C8 0.050 [1.27] 1.050 [26.67] max 0.425 0.300 [10.80] [7.62] max 0.070 [1.78] 0.465 [11.81] 0.050 [1.27] pitch 0.020 ±0.002 [0.51 ±0.05] 0.025 [0.64] R0.005 [R0.13] typ R0.005 [R0.13] typ 0.290 [7.37] max 0˚-5˚ 0.004 0.750 [19.05] 0.010 [0.25] min 2X 0.035 [0.89] 2X 0.060 [1.52] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. Tape and Reel Packaging 44 mm wide by 16 mm pitch; 13 inch OD, 4 inch ID 400 modules per reel, maximum Meets ANSI/EIA 481-2 Carrier Tape Standards - JEDEC SO Package ©2001 Bel Fuse Inc. Specifications subject to change without notice. 12.01 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 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 G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com page 2