rhombus transformers & magnetic products industries inc. name: sheet: date: rhombus p/n: cust p/n: 15801 chemical lane, huntington beach, ca 92649-1595 phone: (714) 898-0960 fax: (714) 896-0971 www.rhombus-ind.com 1 of 1 schematic diagram physical dimensions all dimensions in inches (mm): turns ratio ( + 5% ) 4:1:1 pins 5-3:3-1:6-2 parameter min. max. units open circuit inductance 112 168 m hy leakage inductance 5 m hy interwinding capacitance (c w/w )12pf primary dc resistance 0.6 ohms secondary dc resistance 0.4 ohms isolation (hi-pot) 1.5 kv rms et product 10 v m s test conditions: oscillation voltage = 20mv oscillation frequency = 100.0 khz inductance measured on primary winding. pins 5 - 3. flammability: materials used in the production of these units meet requirements of ul94-vo and iec 695-2-2 needle flame test. temperature characteristics: -40 o c 89.6 m h min. (20% drop in inductance) +85 o c 1.42 m h min. (27% growth in inductance) typical part: 140 m h @ +25 o c 178 m h @ +85 o c 112 m h @ -40 o c parts shipped in anti-static tubes. 50 pieces per tube 7/8/97 T-933 isolation transformer designed for use with sgs st7537
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