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| defining a degree of excellence TM0053 V.34 SRF. MNT. MODEM TRANSFORMERS S574-1000-17 and S574-1000-18 MECHANICALS Pin 2 0.700(17.78) Max 10 0.550 (13.97) Max 6 0.550 (13.97) Max Pin 2 0.575(14.61) Max 10 SCHEMATIC 2 Primary 10 Secondary 4 D.C. Part No. bel D.C. 4 Part No. 6 4 6 S574-1000-17 0.420 (10.67) Max 0.697(17.70) S574-1000-18 SUGGESTED PC BOARD LAYOUT 0.420 (10.67) Max 0.73 (18.54) 0.080 (2.03) 0.100 (2.54) 0.050 (1.3) 0.697(17.70) ELECTRICALS SPECIFICATIONS Suitable for modem speeds up to: Reflects 600 ohm at Pri with RLoad D.C. Resistance, 20oC, +/- 10%, Pri D.C. Resistance, 20oC, +/- 10%, Sec Frequency Response, 100 to 4000Hz Insertion Loss at 1KHz, 20oC Return Loss vs 600 ohms at 1KHz Direct Current Dielectric Test Pri-Sec, Pri to core Direct Current Turns Ratio (Pri-Sec) 1KHz, +/- 1% Longitudinal Balance 60 to 1000Hz Longitudinal Balance 1000 to 4000Hz Total Harmonic Distortion 600Hz @ -10dBm TYPICAL DISTORTION FIGURES (T.H.D.) PART NUMBER S574-1000-17 S574-1000-18 100 150 Hz Hz -10 dBm -72 -80 -10 dBm -59 -66 Ref 200 Hz -83 -72 250 Hz -86 -75 300 Hz -89 -78 600 Hz -93 -88 UNITS V.34 340 120 145 +/- 0.2 2.5 Max 37 Typ None 1250 None 1:1 70 Min 60 Min - 86 Max -ohms ohms ohms dB dB dB -VAC --dB dB dB Frequency Response(dB) TYPICAL FREQUENCY RESPONSE 0.5 0.3 0.1 "-17" 0 -0.1 "-18" -0.3 -0.5 10 1000 100 Frequency (Hz) 4000 Return Loss (dB) TYPICAL RETURN LOSS VERSUS 600 50 "-17" 40 30 "-18" 20 10 0 200 1000 Frequency (Hz) 4000 All dimensions are in inches(mm). The dimension tolerance is +/- 0.01(0.25) unless otherwise specified. Corporate Office Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302-4496 Tel: 201-432-0463 Fax: 201-432-9542 E-Mail: BelFuse@belfuse.com Internet: http://www.belfuse.com 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 T407 |
Price & Availability of S574-1000-17
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