Document 144-1 Combination Line Filter Choke Common and Differential Mode This series of chokes is intended for use in AC line filters for switching power supplies. They combine common and differential mode filtering in a single component. By using these parts, designers can eliminate two extra filter chokes compared to a standard common mode choke. The unique combination of special windings and materials provides much better filtering performance than either a common mode choke or a single winding inductor alone. The differential filtering frequency response is designed to provide filtering at higher frequencies while still allowing the AC line power to pass through without loss. This characteristic is demonstrated in the Differential Mode Attenuation curves. Part number P3717-AL Q4007-AL Q4018-AL Common Differential DCR Current mode L mode L max Isolation rating typ (mH) typ (µH) (Ohms) (Vrms) (A) 25.0 1000 0.30 1500 3 4.5 150 0.06 1500 5 1.5 35 0.02 1500 10 1.75 max 44,5 1.55 max 39,4 1.30 max 33,0 1. Operating temperature range –40° to +85°C. 2. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 8 0.900 22,86 Core material Ferrite Terminations RoHS compliant tin-silver over tin over copper. 5 0.150 ±0.03 3,81 ±0,76 1 0.053 ±0.002 1,35 ±0,05 8 Weight 100 – 113 g Ambient temperature –40°C to +85°C Storage temperature Component: –55°C to +85°C. Packaging: –40°C to +80°C 1.00 25,4 Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Mean Time Between Failures (MTBF) 26,315,789 hours Failures in Time (FIT) 38 failures in one billion hours 4 1 4 1 Packaging 30 per tray (after 5/09); 16 per tray (prior to 6/09) 0.09 2,28 PCB washing Only pure water or alcohol recommended 1.00 25,40 5 8 1 4 8 5 0.900 22,86 Recommended PC Board Layout Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 144-1 Revised 05/20/09 Document 144-2 Combination Line Filter Choke 0 10 dB Attenuation (re: 50⏲) Common Mode Attenuation Typical Response Q4018-AL 20 30 40 P3717-AL 50 Q4007-AL 60 0.001 0.01 0.1 1 10 100 1000 10,000 Frequency (kHz) 0 Q4007-AL dB Attenuation (re: 50⏲) Differential Mode Attenuation Typical Response 10 Q4018-AL 20 P3717-AL 30 40 0.001 0.01 0.1 1 10 100 1000 10,000 Frequency (kHz) Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 144-2 Revised 05/20/09