defining a degree of excellence PULSE TRANSFORMERS S553-3855-01 TM0023 * Designed to work compatibly with the Level One LXT441 Transceiver. Bel takes this opportunity to supply a new Pulse Transformer for Digital Data Service. Our manufacturing processes assure quality and reliability in every component. SCHEMATIC 0.04(1.02) 6 3 Primary * Designed for SW36 and DDS. 0.10(2.54) SUGGESTED PLACEMENT Secondary 2 0.500(12.7) 1 4 MECHANICALS 0.339 (8.60) 1CT : 1 0.03(0.76) All dimensions are in inches(mm). Dimension tolerance is +/- 0.01 unless otherwise stated. 0.20(5.08) 0.366 (9.30) 0.285(7.25) 0.100(2.54) ELECTRICALS Part Number S553-3855-01 Part Number S553-3855-01 0.500(12.7) @ 25O C Leakage Capacitance Turns Ratio Primary Inductance Inductance (pF) Max +/- 2% (mH) Min (µH) Max Pins (3-1):(4-6) Pins (3-1) 1CT:1 40 Longitudinal Balance (dB) Typ. 60Hz to 1000Hz to 15kHz to 2MHz 1000Hz 4000Hz 60 40 Pins (3-1) 40 Pins (3 to 4) 50 40 Corporate Office Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302-4496 Tel: 201-432-0463 Fax: 201-432-9542 E-Mail: [email protected] Internet: http://www.belfuse.com T123 0.433(11.0) DCR (ohms) +/- 10% Pins (3-1) & Pins (4-6) 6 Return Loss Insertion Frequency (dB) Typ. Loss (dB) Response (dB) vs. Line 2 Typ. 1kHz 10kHz 100Hz-112kHz 32 1.50 +/- 1.0 DC Bias Dieletric Current Strength (mA) Min (VAC) Pins (3-1) to Pins (4-6) 50 1500 Far East Office Bel Fuse Ltd. 8F/8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel: 852-2328-5515 Fax: 852-2352-3706 European Office Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Preston PR1 8UD Lancashire, U.K. Tel: 44-1772-556601 Fax: 44-1772-888366