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| MODEM MAGNETICS Audio/Voice Frequency Transformer TM99AH * Used for intercircuit signal transfer, impedance matching and V.32 modem applications Qualified per Bellcore TR-TSY-000357-1 * * Operates over the audio/voice frequency range Minimum interwinding breakdown voltage of 1500 Vrms Meets IEC 695, 2-2 flammability requirements * * * UL approved, file number E105648 ELECTRICAL SPECIFICATIONS at 25 C Insertion Loss dB max Return Loss dB typ DCR max Frequency Shaping Relative to 1 kHz dB Harmonic Distortion % Turns Ratio 2% Part Number Pri : Sec Primary Inductance* H min @ 1 kHz @ 300 Hz Pri Sec 200 Hz 50 kHz @ 300 Hz 2746B 1:1 1.5 1.0 > 20 68 68 0.5 0.5 < 0.5 * Measured at 200 Hz, 1 Vac Longitudinal balance meets FCC 68.310(a) standards Power level -47 dBm to +7 dBm SCHEMATIC 2746B 1 8 4 Primary 5 Secondary (c)1999 Bel Fuse Inc. Specifications subject to change without notice. Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com MODEM MAGNETICS TM99AH Audio/Voice Frequency Transformer MECHANICAL 2746B 0.730 [18.54] max 0.570 [14.48] max 0.110 [2.79] 0.230 [0.58] Sq typ (Phosphor bronze, solder-coated) 0.630 [16.00] max 1 0.400 [10.16] 8 0.113 [2.87] 2 3 4 6 5 0.133 [3.38] 0.150 [3.81] Centers Note: Unless otherwise specified, dimensions are nominal and in inches [millimeters]. (c)1999 Bel Fuse Inc. Specifications subject to change without notice. CORPORATE Bel Fuse Inc. 198 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST 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 EUROPE Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite F23, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com |
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