defining a degree of excellence ISDN “U” INTERFACE TRANSFORMERS 0559-5683-00 TM0047 * Dielectric Strength - 1000 Vrms measured Primary to Secondary. Bel introduces a new ISDN “U” Interface transformer. MECHANICALS 1.07(27.18) Max PLACEMENT 0.10(2.52) Min 0.90(22.86) Ref Notch locates terminal #1 0.47(11.94) Max bel Date Code 10 0.920(23.37) Max Part Number True Postion Grid (P.C. Pattern, Component Side) 0.80(20.32) Part Number @ 25oC Turns Ratio (+/- 1%) Primary to Secondary 0559-5683-00 1:1.5 1 9 3 10 5 7 6 Secondary Inductance (mH) Min-Max Leakage Inductance (µH) Max Pins (7-9) tie Pins (6 to 10) Pins (4-7 to 6 to 10) Pins (1-5) Shorted 77-86 8 3 7 4 SCHEMATIC 0.060" Typ Primary ELECTRICALS 2 6 Terminal numbers are for reference only Dimensions in inches (mm) Dimension tolerance +/- 0.015(0.25) unless otherwise stated 0.150" Typ 9 100-172 DCR (Ω) +/- 10% Pins (1-5) 19.8 5 0.020" x 0.040" Typical Secondary DC in Primary (mA) Max Pins (7-9) 15.7 30 Primary Inductance is measured at 100mV @ 1kHz, 30mADC. Leakage Inductance is measured at 100kHz, 0.01VAC. Corporate Office Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302-4496 Tel: 201-432-0463 Fax: 201-432-9542 E-Mail: [email protected] 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 T306