U Interface Transformer (4B3T Coding Applications) Designed for use with AMD AM 20902, Mietec MTC 2071, Siemens PEB 2090 Turns Ratio ( + 3 % ) (Line : Chip) 1.32 : 1 PARAMETER MIN. MAX. UNITS Primary Inductance (Line Side) 1 7.43 8.37 mH Primary DC Resistance 2.5 ohms Secondary DC Resistance 2.0 ohms Flammability: Materials used in the production of these units meet requirements of UL94-VO and IEC 695-2-2 needle flame test. Pins 7 to 5 with 8 & 6 shorted. Schematic 2 Isolation (Hi-Pot) 2000 DC Bias Return Loss 10KHz & 25 KHz 60 20 5 VRMS 8 Chip Side mA 6 dB 11 Longitudinal Balance 5 KHz 20 dB min. 20 KHz to 150 KHz 40 dB min. 1 MHz 36 dB min. NOTE: 1. Tested @10 kHz / 700 mV, on Line Side Line Side 7 Physical Dimensions inches (mm) Operating Temp. Range -400C to +850C Primary is Line Side (Pins 5,8,6,7) Secondary is Chip Side (Pins 2,11) Surge Voltage Capability Metallic Voltage: 800 V peak, 10/560 µS Longitudinal Voltage: 2400 V peak, 10/700 µS RM-8 Package RHOMBUS P/N: T-13226 CUST P/N: DATE: 7/2/96 Rhombus Industries Inc. Transformers & Magnetic Products NAME: SHEET: 1 of 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com