Magnetic Component Specification Specification Number SGE2641-3 Rev. A (073001) This Document describes and specifies the electrical and mechanical characteristics of SGE2641-3 high voltage transformer for CCFL inverter power supply. This component should be designed and manufactured in accordance with Engineering Specification LES3811T 1. Electrical Characteristics Items Inductance ( at 10Khz, 0.1V) Min Nom Max L1-2, L2-3 (uH) L4-5 (mH) LLKG2-4 ,LLKG4-6 (uH) 104 117 137 920 1040 1200 Inductance ( at 100Khz, 1Vrms) 10 11 12 Should be shorted pin 4-5 Secondary Self Capacitance C4-5 (pF) 2.0 2.5 3.0 Dielectric Voltage Withstand Secondary to Core 60 Hz.,Arc-detect enabled, 5 sec. min., 200uA max. Primary to Core leakage current Primary to Secondary Operating Test V4-5 Primary driven with 60 kHz. sine wave source (pin 1-3), secondary measured with Tektronix P6015 (or equiv.).. D.C Resistance Items Min Nom Max 150 174 198 R1-2, R2-3(mΩ) 405 415 430 Rdc4-5(Ω) R1-2/R2-3 0.96 1 1.04 Balance of Primary DC resistance will be used as Bifilar winding measure tool HP4280A 1Mhz C meter, Floating mode 2500Vrms min. ( 1min. 60Hz) 1000Vrms min. 2000Vrms min. 2000Vrms min. 2. Winding Specifications Winding Sequence Wire Size & Type Number of Turns Winding Method Primary Pin 1 – 2 Pin 2-3 2S-1F 3S-2F #35*2, Single Insulation, #35*2, Single Insulation, 180°C 180°C 18 18 Bifilar on Sector #1 Secondary Pin 4-5 5S-4F #46, Triple insulation, 180°C 1700 Sector #3 to #7. skip #2 3. Physical Specification & Wiring Diagram Linfinity Microelectronics, Inc., 11861 Western Ave., Garden Grove, CA 92841 tel. (714) 898-8121