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TEW4923-1 Datasheet(PDF) 1 Page - Filtran LTD |
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TEW4923-1 Datasheet(HTML) 1 Page - Filtran LTD |
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1 / 1 page TEW4923 is designed/approved for use as an input/output transformer in the ISDN S-Interface. Features • Certified to the safety re- quirements of : EN41003 and EN60959. BABT CR/T/0053. • Fully encapsulated in epoxy for mechanical protection and to insure the dielectric strength requirements. TEW4923 AMD 79C30A “ National TP3420 ” Siemens PEB2080 “ Siemens PEB2081 ” Siemens PEB2085 “ Siemens PEB2086 TEW4923 - 1 Intel 29C53 TEW4923 - 2 Mitel MT8930A “ Mitel MT8930B ” Mitel MT8931B TEW4923 - 3 Motorola MC145474 Motorola MC145475 TEW4923 - 4 Motorola MC145574 Turns ratio (1 - 3) : (6 - 4) 2 : 1 1.8 : 1 2 : 1 1 : 1 2.5 : 1 DCR (Ohms) (1 - 3) 5.4 6.7 8.4 3.7 12.8 (6 - 4) 2.7 3.2 3.7 3.2 3.2 Inductance (mH) (6 - 4) > 22 > 22 > 22 > 22 > 22 Leakage Ind. (µH) (6 - 4) < 6.0 < 6.0 < 12 < 6.0 < 12 L..C.L. (dB) 10 - 300 KHz > 54 > 54 > 54 > 54 > 54 Output/Input Impedance Conforms to the impedance mask given in CCITT I.430. Pulse Shape Conforms to the pulse mask given in CCITT I.430 with 50 and 400 ohms terminations. Dielectric Strength (Volts rms) 4000 4000 4000 4000 4000 TEW4923, -1 and -3 WHITE DOT AT PIN 1 6 5 4 ISDN S-Bus Input/Output Transformer TEW4923 1 2 3 MECHANICAL ELECTRICAL TEW4923 TEW4923-1 TEW4923-2 TEW4923-3 TEW4923-4 TEW4923-2 6 5 4 1 3 MT8930A/B Connection of TEW4923-2 4 5 6 1 3 3 1 6 5 4 Filtran Limited 229 Colonnade Road, Nepean, Ontario, Canada, K2E 7K3, 3-8 Tel: (613) 226-1626, Fax: (613) 226-7124 |
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