T1 / E1 Pulse Transformer (For Use with Mitel Semiconductor's MT 9076) Turns Ratio ( + 5% ) Flammability: Materials used in the production of these units meet requirements of UL94-VO and IEC 695-2-2 needle flame test. 1:2.4 PARAMETER MIN. Open Circuit Inductance Oscillation Voltage = 20mV Oscillation Frequency = 100.0 KHz MAX. 1.2 UNITS mHy Leakage Inductance Oscillation Level = 20mV Oscillation Frequency = 100.0 KHz 0.80 µHy Interwinding Capacitance (CW/W) Oscillation Frequency = 100.0 KHz 35 pF Primary DC Resistance 0.7 ohms Secondary DC Resistance 1.15 ohms 1.5 Kv Isolation (HI-POT) Temperature Characteristics: -40o C 700 µH min. (40% drop in inductance) +85o C 1.4 mH min. (15% growth in inductance) Typical part: 1.7 mH @ +25o C 2.0 mH @ +85o C 1.0 mH @ -40o C Parts shipped in anti-static tubes. 50 pieces per tube VRMS PHYSICAL DIMENSIONS All dimensions in inches (mm): SCHEMATIC DIAGRAM 5 6 1 2 Primary Pins 1-5 Rhombus Industries Inc. Transformers & Magnetic Products RHOMBUS INDUSTRIES INC. FSCM NO. 16714 RHOMBUS P/N: T-10257 CUST P/N: DATE: 3/13/00 NAME: SHEET: 1 OF 1 15801 Chemical Lane, Huntington Beach, CA 92649 Phone: (714) 898-0960 FAX: (714) 896-0971 www.rhombus-ind.com