3858-X FILTRAN | Alldatasheet

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ISSUE: F 23/10/02 3858-X Audio Line Coupling/ Bridging Transformer 3858-X ELECTRICAL SPECIFICATION @ 25 ˚C An ISO 9001 Registered Company

229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3

Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com 3858 is a 1:1 line matching transformer with the following features:

  • Low profile
  • Small volume
  • Conforming to FCC part 68, Canadian CS 03 regulations
  • Low cost
  • High insulation voltage Applications: Interfacing equipment to telephone line, requiring small size and high insulation voltage. 3858-2 is designed for high impedance bridging applications. MECHANICAL AND SCHEMATIC (All dimensions in inches) 3858 3858-1 3858-2 3858-3 Impedance ( Ω ) 600 : 600 600 : 600 10 K : 10 K 10 K : 10 K Insertion Loss ( dB ) @ 1000 Hz < 1.0 < 1.0 < 0.5 < 0.5 Frequency Response ( dB ) 300 – 3500 Hz < 1.0 < 1.0 < 0.5 < 0.7 Longitudinal Balance ( dB ) 300 – 3500 Hz > 65 > 65 > 65 > 65 DCR ( Ω ) Pri 57 57 250 125 ( Ω ) Sec 57 57 250 125 Return Loss ( dB ) 300 – 3500 Hz > 15 > 15 - - Bridging Loss on 600 Ω line ( dB ) - - < 0.25 < 0.25 terminated with 10 KΩ at the output Dielectric Strength (Vrms) 4000 4000 2500 2500 3858 3858-1 3858-2, 3858-3 UNLESS OTHERWISE SPECIFIED, ALL TOLERANCES ARE ±0.010