Photoflash Flyback Transformer ELECTRONICS INC. EPC3225G-X • Used as Flyback Transformer in High Voltage Photoflash Capacitor Charger • Designed for use with PNP or NPN Transistor • Operating Temperature : -40°C to +85°C • UL 94V-0 Recognized Components • UL 1446 Class B Insulation System • Very Low Core Loss • Isolation : 500 Vrms Electrical Parameters @ 25° C PCA Part Number Transistor Design EPC3225G-1 PNP or NPN EPC3225G-2 Voltage (Vdc) V in V Out 1.5 320 1.5 PNP or NPN Turns Ratio Primary OCL @ 0Adc (µH Typ.) Pri:Sec1:Sec2 @ 100 KHz, 0.1 Vrms Pri. Sec.1 1:240:2.4 22.3 .045 301 A 1:240:N 22.3 .045 301 B Primary Peak Current (Amp) 320 2.5 2.5 DCR (Ω Typ.) Schematic • N : Not Required/No Connection • Package Sample Circuit .319 Typ. (8.10) Pin 1 I.D. D1 .401 Typ. (10.20) .490 .020 (10.90) 5 (.500) 1 4 .079 (2.00) 0°-8° T1 8 .236 (6.00) Schematic A D2 .193 (4.90) + - R SW1 .026 (.650) .453 (11.50) 6 Sec.2 5 + 1.5V Side Marking : .012 PCA EPC3225G-X(.300) D.C. (-320V) - 1 Pri. 3 8 Sec.1 7 .008 (.203) Schematic B 1 Pri. 3 8 Sec.1 7 Pad Layout .079 (2.00) .067 (1.70) .358 (9.10) .059 (1.50) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 Product performance is limited to specified parameters. Data is subject to change without prior notice. CSC3225G-X Rev. 2 5/23/05 FT TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com