0574-1000-05 BEL | Alldatasheet
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defining a degree of excellence 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 MODEM TRANSFORMER 0574-1000-05 Insertion loss measured at 1000Hz. Reflected impedance, distortion, Longitudinal balance measured with 312 ohms across the secondary. Harmonic Distortion is typically -89dB. The -82dB max is measured at 600Hz, -10dBm (V.34) ref. 0574-1000-05 Part Number +/- 0.25 300Hz to 4000Hz Frequency Response (dB) referenced at 1000Hz Part Number 1 : 1 2.5 600 30 145140 60 40 -82 Pins (6-4) Pins (1-3) 0574-1000-05 Reflected Impedance (ohms) +/-5% Insertion Loss (dB) +/- 0.25dB Turns Ratio (+/- 2%) 1000Hz Typical Return Loss (dB) 200Hz to 1000Hz 1000Hz to 4000Hz Longitudinal Balance (dB) Min DCR (Ω ) +/- 10% 600Hz Harmonic Distortion (dB) Max * 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. Bel proudly introduces a new modem transformer for data/fax modem applications including V.34bis 28,800 bps applications. These transformers exhibit very low distortion values, typically -89dB. Date Code bel 0574-1000-05 0.197(5.00) Typ 0.470 (11.94) Max 0.025 (0.64) Square 0.394 (10.0) 0.10 (2.54) Min M E C H A N I C A L S Pin 1 4 5 6 0.550 (13.97) Max 0.550(13.97) Max Dimensions are in inches (mm). Dimension tolerance +/- 0.01(0.25) unless otherwise stated. Secondary Primary SCHEMATIC TM0042 ELECTRICALS @ 25O C. T402