U Interface Transformer (2B1Q Coding Applications) Designed for use with Siemens PEB 2091 Turns Ratio ( + 3 % ) (Line : Chip) 1.65 : 1 PARAMETER MIN. MAX. UNITS Primary Inductance (Line Side) 14.5 16.4 mH Primary DC Resistance 6.0 ohms Secondary DC Resistance 3.5 ohms REINFORCED INSULATION Pins 1 to 5 with 2 & 4 shorted. Isolation (Hi-Pot) 3000 DC Bias Flammability: Materials used in the production of these units meet requirements of UL94-VO and IEC 695-2-2 needle flame test. VRMS 60 mA Return Loss 10KHz & 25 KHz 20 dB Longitudinal Balance (281 Hz to 40 KHz) 55 dB A Surface Mount Version of this part is available add suffix "G" to part number NOTE: Operating Temp. Range -400C to +850C Physical Dimensions inches (mm) Primary is Line Side (Pins 1,2,4,5) Secondary is Chip Side (Pins 7,8,9) Surge Voltage Capability Metallic Voltage: 800 V peak, 10/560 µS Longitudinal Voltage: 2400 V peak, 10/700 µS Schematic Diagram PRI lin e SEC d e vice Notch Indicates Pin #1 RHOMBUS P/N: T-13222 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