name: sheet: date: rhombus p/n: cust p/n: 15801 chemical lane, huntington beach, ca 92649 phone: (714) 898-0960 fax: (714) 896-0971 rhombus transformers & magnetic products industries inc. www.rhombus-ind.com 1 of 1 4/19/99 T-1231G turns ratio (pin 2-6 : pin 3-7) 1.60 : 1.70 turns ratio (pin 3-7 : pin 4-8) 1.95 : 2.05 turns ratio (pin 2-1 : pin 1-6) 0.95 : 1.05 impedance transformer schematic diagram parameter min. max. units primary inductance (1) 7.68 mh pins 3-7 leakage inductance (2) 3 m h pins 3-7 pins 2-6 shorted dc resistance (pin 1-6) 0.95 ohms dc resistance (pin 2-1) 1.0 ohms dc resistance (pin 3-7) 1.8 ohms dc resistance (pin 4-8) 0.75 ohms isolation (hi-pot) winding to winding 500 v rms isolation (hi-pot) winding to core 500 v rms 6 1 2 8 4 7 3 1. tested at 10 khz & 1 v 2. tested at 100 khz & 1 v physical dimensions inches (mm) .465 (11.8) max. .492 (12.5) max. .098 (2.50) .028 (0.70) .432 (10.97) max. .413 (10.5) .575 (14.6) .567 (14.4) .469 (11.9) max. .025 (0.64) .100 (2.54) typ. .594 (15.10) .050 (1.27) typ. 8 suggested pad layout 7 6 5 1 2 3 4 .100 (2.54) typ.
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