defining a degree of excellence ISDN “U” INTERFACE TRANSFORMERS 0559-6204-00 and 0559-6204-01 TM0035 Bel introduces a new ISDN “U” Interface transformer. The transformer is designed to be used with the Motorola ISDN "U" Interface Chip MC145572. * Dielectric Strength - 1500 Vrms measured Primary to Secondary. Meets or exceeds requirements of CAN/CSA-C22.2 No.225(M90) & UL Std. No. 1950 2nd ed. MECHANICALS * Part Number 0559-6204-00 varies only in its additional insulation. 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 9 2 8 3 7 4 5 True Postion Grid (P.C. Pattern, Component Side) 0.80(20.32) Dimensions in inches (mm) Dimension tolerance +/- 0.015(0.25) unless otherwise stated Terminal numbers are for reference only SCHEMATIC 0.060" Typ 0.020" x 0.040" Typical NOTE: For Part Number 0559-6204-00 only, there is additional insulation here. 1 9 2 Primary 0.150" Typ 8 Secondary 4 7 ELECTRICALS Part Number 5 @ 25O C. Turns Ratio (+/- 1%) Primary to Secondary 0559-6204-00 0559-6204-01 1.25:1 Primary Inductance (mH) Min-Max Leakage Inductance (µH) Max Interwinding Capacitance (pF) Typ Pins (1-5) tie Pins (2-4) Pins (7-9) Pins (1,2,4,+5) Shorted Primary to Secondary 26.5-30.0 28.0 150 DCR (Ω) Max Pins (1-5) Pins (7-9) 8 12 DC in Primary (mA) Max 60 Primary Inductance is measured at 100mV @ 1kHz, 0 & 60mADC. Leakage Inductance is measured at 100kHz, 0.01VAC. Interwinding Capacitance is measured 10kHz, 1.0V. 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 T304