TEW4974 FILTRAN | Alldatasheet
Document overview
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Technical content
designed to operate in the 64 kbit mode of the CCITT recommendation G703 for Hierarchical Digital Interfaces. Applications: Codirectional Interface Contradirectional Interface Features:
- TEW4974 is specifically designed to meet the stringent BS6301 requirements for reinforced barrier insulation.
- TEW4974 is fully encapsulated in epoxy to ensure 4000V dielectric strength.
- TEW4974-1 has an electrostatic shield for improved noise rejection. Line Impedance 120 Ω 120 Ω Turns Ratio (6 - 4):(1 - 3) 1:2 1:2 Winding Resistance (1 - 3) 5.2 Ω nom. 8.9 Ω nom. (6 - 4) 3.1 Ω nom. 2.8 Ω nom Inductance @ 0.5V 3000 Hz (6 - 4) > 16 mH > 24 mH Leakage Inductance (6 - 4) < 50 µH < 20 µH Return Loss @ 0.5 V Application Codirectional Co- & Contradirectional Temperature Operating 0 to +50 o C 0 to +50 o C Storage - 40 to +70 o C - 40 to +70 o C Dielectric Strength 4000 Vrms 1500 Vrms TEW4974 ISSUE: E 95/03/01 TEW4974 WHITE DOT AT PIN 1
2 Device
Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada. K2E 7K3, 5-4 Tel : (613) 226-1626 Fax : (613) 226-7124 All dimensions are in inches
64 Kbit/s data In/Output Transformer TEW4974
ELECTRICAL SPECIFICATIONS TEW4974 TEW4974-1 MECHANICAL 1 : 2 1 : 2