Isolation Transformer EPA3803S & EPA3803S-LF ELECTRONICS INC. • Used in SMPS Push-Pull Topology • Add “-LF” after part number for Lead-Free • Storage Temperature : -40°C to +125°C • Operating Temperature : 0°C to +70°C • UL 94V-0 Recognized Components • UL 1446 Class B Insulation System • 500 Vrms Minimum Isolation • PCMCIA Package Electrical Parameters @ 25° C Interwinding Capacitance (pF Max.) @ 100 KHz, 0.1 Vrms Primary OCL (µH Typ.) @ 100 KHz, 0.1 Vrms Leakage Inductance (µH Max.) @ 1 MHz, 0.1 Vrms Pri. DCR (Ω Max.) Vt (V-µSec.) @ 500 KHz Typ. 5.0 240 12 0.4 0.6 Pins 1-2 Pri. Wdgs to Sec. Wdgs Pins 1-2 with Pins 3, 4, 5, 6, 7, 8 Shorted Pins 1-2 & Pins 3-4 Package Schematic Pri. .290 (7.37) .070 (1.78) .090 (2.29) .050 (1.27) Marking : PCA EPA3803S(-LF) Date Code Pin 1 I.D. .270 (6.86) .420 Pad (10.67) Layout .150 (3.81) 1 8 2 7 3 6 4 1:1.3 5 .030 (.762) .005/.015 (.127/.381) .088 Max. (2.24) Sec. 1:1.3 .008/.012 (.203/.304) 0°-8° .050 (1.27) .035 (.889) .365 (9.27) .018/.022 (.457/.559) EPA3803S EPA3803S-LF 1. Lead Finish Notes : SnPb Hot Dipped Sn or SAC 2. Peak Solder Rating 225°C 260°C 1 (Unlimited, ≤30°C/60%RH) 1 (Unlimited, ≤30°C/60%RH) 3. Moisture Sensitive Levels (MSL) 4. Weight 5. Packaging Information (Tube) 0.250 grams 0.250 grams 78 pcs / tube 78 pcs / tube 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. CSA3803S & -LF Rev. 3 3/11/08 WC TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com