RoHS EFD20 SMD Transformer AEFD20-4520 EFD20 Core SMD Package Operating Ambient Temperature Range: -40°C to +125°C 1500VAC Hi Pot Electrical Specifications @ 25°C Inductance (1+2-3+4) @10KHz, 0.1V Tie (1+2, 3+4) Turns Ratio @ 10KHz, 0.1V Leakage Inductance (1+2-3+4) @100KHz, 0.1V Tie (5+6, 7+8+11+12) 160nH Typ 9µH ±10% (11-8):(1-4) Tie (1+2, 3+4, 7+8, 11+12) (1-4):(5-6) Tie (1+2, 3+4) 1.12:1 ±2% 1:1 ±2% 320nH Max Secondary Electrical Specifications @ 25°C DCR (mΩ) ±20% (2-3) DCR (mΩ) ±20% (11-8) Tie (7+8, 11+12) 23 14 DCR (mΩ) ±20% (1-4) Hi-Pot (1-12) Tie (1+2 ,4+5, 11+12) 385 1500 VAC 27 MECHANICAL Dimensions: DCR (mΩ) ±10% (5-6) All specifications subject to change without notice. inch (mm) Allied AEFD20-4520 YYWW C D 1 E 6 6 B FRONT VIEW 1 A 7 0.12MAX SIDE VIEW 6 A .910 Max (23.11) B 1.17 Max (29.65) C .450 Max (11.43) D .028±.004 (0.7±0.1) E .118±.012 (3.0±0.3) 7 12 BOTTOM VIEW SCHEMATIC 1 4 2 11, 12 PRI 9-57V 250KHz 3 5 SEC 12V, 2.0A 7, 8 AUX 10V, 10mA 6 949-356-1780 ALLIED COMPONENTS INTERNATIONAL 10/17/2017 15 www.alliedcomponents.com