Document 141-1 Common Mode Line Chokes – EE Styles • Low cost • VDE, IEC, UL, CSA compliant • 3750 Vrms isolation between windings • Constructed with UL approved Class 130°C insulation system (UL File E83628) • Industry-standard EE25 size • Wide range of available inductances and current ratings Coilcraft Designer’s Kit No. P402 contains samples of eight standard EE and toroidal common mode line chokes. To order, contact Coilcraft or purchase on-line at http://order.coilcraft.com. Coilcraft common mode standard packages incorporate several features to help meet the requirements of all major international safety agencies. These include 2 mm thick center flanges and 3 mm creepage and clearance from all terminations to the core. Common mode chokes are used to reduce AC line conducted interference produced by switching power supplies. This configuration produces opposing magnetic fluxes in the core that serve to cancel in-phase noise signals appearing across the AC line. This mode allows much more filtering capability in a given core size than would be possible using differen- tial filtering alone. Use of common mode chokes therefore reduces component count as well as inductor size. Combining both common and differential mode chokes gives the power supply designer the added flexibility required to adjust the filtering to meet FCC, VDE, and other requirements as well as optimize the circuit for the particular noise levels and frequencies produced by each power supply design. The Coilcraft packaging of common mode chokes allows windings to be balanced within 1% and features the cost effectiveness of standard EE core styles. Schematic 2 Typical Application 4 2 4 0.005 µF AC input 0.1 µF 0.1 µF 0.005 µF 9 © Coilcraft, Inc. 2007 7 9 7 Specifications subject to change without notice. Please check our website for latest information. Document 141-1 Revised 02/06/06 Document 141-2 Common Mode Line Chokes – EE Styles Standard EE Line Chokes Part number E3490-AL E3491-AL E3492-AL E3493-AL E3494-AL Current rating1 500 mA 750 mA 1A 1¼ A 1½ A DCR max2 (Ohms) 0.980 0.390 0.270 0.190 0.105 E3495-AL E3496-AL E3497-AL E3498-AL 2A 2½ A 3A 4A 0.069 0.044 0.029 0.016 Inductance3 min 9.9 mH 3.9 2.9 2.1 1.1 0.950 max 24,13 731 µH 468 299 168 1. Based on 300 circular mils/Amp. Temperature rise is less than 10°C. 2. DCR is maximum per winding. 3. Per section. Typical values are approximately 30% higher than published minimums. 4. Operating temperature range –40°C to +85°C. 5. Electrical specifications at 25°C. 6. Parts in bold type are included in Coilcraft Designer’s Kit No. P402. 0.032 dia ref 0,813 0.15 ±0.030 3,81 ±0,762 0.40 10,16 0.155 ref 3,937 2 4 0.62 ±0.015 15,75 ±0,38 1.10 max 27,94 0.079 min 2,00 9 7 1.10 max 27,94 Weight: Terminations: 19 – 33.8 g Tin-silver over tin over copper Standard EE Line Chokes – High Inductance Part number E3499-AL E3500-AL E3501-AL E3502-AL E3503-AL E3504-AL E3505-AL E3506-AL E3507-AL Current rating1 500 mA 750 mA 1A 1¼ A 1½ A 2A 2½ A 3A 4A DCR max2 (Ohms) 1.260 0.500 0.350 0.230 0.130 0.087 0.055 0.037 0.022 Inductance3 min 16.8 mH 6.6 4.9 3.6 1.87 1.24 796 µH 508 286 1. Based on 300 circular mils/Amp. Temperature rise is less than 10°C. 2. DCR is maximum per winding. 3. Per section. Typical values are approximately 30% higher than published minimums. 4. Operating temperature range –40°C to +85°C. 5. Electrical specifications at 25°C. 1.20 max 30,48 0.032 dia ref 0,813 0.15 ±0.030 3,81 ±0,762 0.40 10,16 0.155 ref 3,937 2 4 0.62 ±0.015 15,75 ±0,38 1.10 max 27,94 0.079 min 2,00 9 7 1.10 max 27,94 For custom values or information on toroidal common mode line chokes, please contact Coilcraft. Weight: Terminations: 19 – 33.8 g Tin-silver over tin over copper Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2007 Document 141-2 Revised 02/14/06