defining a degree of excellence MODEM TRANSFORMER S574-1000-06 TM0043 Bel proudly introduces a new modem transformer for data/fax modem applications including V.34bis 28,800 bps applications. Tape and Reel packaging available. SCHEMATIC * 1250 Vrms isolation Voltage. * Meets or exceeds requirements of: CAN/CSA-C22.2 (1988) No. 225(M90), and DOC's C3-03 (Issue 7): UL's UL1950; 2nd edition; and FCC's Part 68(58 FR 44907, Aug 25, 1993). * Weight is 5.0 grams 2 10 Primary Secondary 4 6 0.705(17.91) 0.063(1.60) SUGGESTED PC BOARD LAYOUT MECHANICALS Pin 2 0.520(13.21) Max 0.100(2.54) 0.050(1.3) 10 bel 0.550 (13.97) Max 4 0.420 (10.67) Max S574-1000-06 0.669(17.0) +/- 0.006(0.15) 6 Dimensions are in inches (mm). Dimension tolerance +/- 0.01(0.25) unless otherwise stated. ELECTRICALS @ 25O C. Part Number S574-1000-06 DCR Longitudinal Reflected Return Loss Turns Insertion (dB) Min (Ω) +/10% Balance (dB) Min Impedance Ratio Loss (dB) (ohms) Pins Pins 200Hz to 1000Hz to (+/- 2%) +/- 0.25dB 300Hz to (6-10) (2-4) 1000Hz +/-5% 4000Hz 4000Hz 1:1 1.50 600 25 Insertion loss measured at 1kHz. Reflected impedance, distortion, Longitudinal balance measured with 442 ohms across the secondary. Harmonic Distortion. The -82dB max is measured at 600Hz, -10dBm (V.34) ref. DC Resistance is measured at 20oC. 87.5 82.5 60 Part Number T403 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 600Hz -82 40 Frequency Response (dB) 300Hz to 3500Hz S574-1000-06 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 Harmonic Distortion (dB) Max +/- 0.25 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