SER2918H-333KL

Document 644-1 SMT Power Inductors - SER2900 Series • Same electrical specifications as Coilcraft’s SER2800 • Extremely low DCR; Current handling to >100 Amps • Third mounting pad for greater stability and board adhesion Core material Ferrite Terminations Leads: RoHS compliant tin-silver over copper. Base pad: RoHS compliant gold over nickel over phos bronze. Other terminations available at additional cost. Weight SER2915L – 28.5 g; SER2915H – 29.7 g; SER2918H – 35.7 g Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +125°C. Packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at 100 >100 20 30 >100 >100 20 30 84.0 84.8 20 30 92.5 93.6 20 28 66.9 68.4 20 30 54.0 57.0 20 30 61.2 62.4 20 28 48.0 50.1 20 30 36.9 39.0 20 30 45.0 45.9 20 28 34.5 36.2 20 30 26.0 27.8 20 30 31.2 32.1 20 28 30 21.5 23.4 20 16.2 17.6 20 30 21.2 21.9 20 28 14.0 15.2 20 30 9.8 11.0 20 30 14.0 15.0 20 28 8.6 9.6 20 30 6.0 6.8 20 30 8.7 9.6 20 28 5.1 5.9 20 30 2.6 3.3 20 30 1. When ordering, specify termination code: SER2915-333KL Termination: L =RoHS compliant tin-silver over copper. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). 2. Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. 3. DCR measured on a Keithley 580 microohmmeter or equivalent. 4. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture. 5. Peak dc current at which the inductance drops the specified amount from its value without current. When Isat rating is less than Irms, Isat is the more critical specification. 6. Current that causes the specified temperature rise from 25°C ambient. When Irms is greater than Isat, Isat is the more critical specification, and Irms is shown in gray type. See Temperature Rise vs Current curve on next page. 7. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Specifications subject to change without notice. Please check our website for latest information. Document 644-1 Revised 11/30/09 © Coilcraft, Inc. 2009 Document 644-2 SMT Power Inductors - SER2900 Series 1.10 max 27,9 0.200 5,08 0.208 5,28 C L 0.455 11,56 C L 0.220 5,59 0.150 3,8 0.210 5,33 0.261 ±0.020 6,63 ±0,51 0.095 2,41 0.250 6,35 Pad is for mounting stability only. Do not connect to ground or other circuits. 0.78 max 19,7 SER29XXX COILCRAFT XX 1.100 max 27,94 0.270 6,9 0.095 2,41 Recommended Land Pattern Height (See table) SER2915L SER2915H SER2918H Maximum height 0.605 / 15,36 0.605 / 15,36 0.700 / 17,78 0.150 min 3,8 0.006/0,152 Dimensions are in inches mm Temperature Rise vs Current 80 Current Derating 120 110 100 Temperature rise (from 25°C) 70 Percent of rated current 60 50 40 30 20 10 0 0 10 20 30 40 50 60 90 80 70 60 50 40 20 10 0 -40 -20 25°C 30 Isat Irms 0 20 40 60 80 100 120 140 Current (A rms) Ambient temperature (°C) Specifications subject to change without notice. Please check our website for latest information. Document 644-2 Revised 11/30/09 © Coilcraft, Inc. 2009 Document 644-3 SMT Power Inductors - SER2900 Series L vs Current 100 33 µH L vs Frequency 100 33 µH Inductance (µH) Inductance (µH) 22 µH 15 µH 22 µH 15 µH 10 10 µH 6.8 µH 4.7 µH 3.3 µH 2.2 µH 10 10 µH 6.8 µH 4.7 µH 3.3 µH 2.2 µH 1.5 µH 1 SER2915L 0.1 1 1.5 µH SER2915L 1 10 100 0.1 1 10 100 Current (A) Frequency (MHz) 100 100 33 µH 33 µH Inductance (µH) Inductance (µH) 22 µH 15 µH 22 µH 10 15 µH 10 µH 6.8 µH 10 10 µH 6.8 µH 4.7 µH 3.3 µH 2.2 µH 1 4.7 µH 3.3 µH 2.2 µH 1 SER2915H 0.1 0.1 1 10 100 SER2915H 0.1 1 10 100 Current (A) Frequency (MHz) 100 100 33 µH 33 µH Inductance (µH) 22 µH 15 µH Inductance (µH) 22 µH 10 15 µH 10 µH 6.8 µH 4.7 µH 3.3 µH 10 10 µH 6.8 µH 4.7 µH 3.3 µH 1 1 SER2918H 0.1 1 10 100 0.1 SER2918H 0.1 1 10 100 Current (A) Specifications subject to change without notice. Please check our website for latest information. Frequency (MHz) Document 644-3 Revised 11/30/09 © Coilcraft, Inc. 2009 Document 644-4 SMT Power Inductors - SER2900 Series ESR vs Frequency 2000 SER2915L Equivalent Series Resistance (Ohms) 1750 1500 1250 1000 750 500 250 0 0.1 1 10 100 33 µH 22 15 µH µH 10 µH Frequency (MHz) Equivalent Series Resistance (Ohms) SER2915H 1750 1500 1250 1000 750 500 250 0 0.1 1 33 µH 22 µH 2000 10 10 µH 6.8 µH 4.7 µH 3.3 µ 2.2 H µH 15 µH Frequency (MHz) Equivalent Series Resistance (Ohms) SER2918H 1500 1250 1000 750 500 250 0 0.1 1 22 µH 1750 10 15 µH 10 µ H 6.8 µ H 3.3 µH 4.7 µH 33 µH 2000 Frequency (MHz) Specifications subject to change without notice. Please check our website for latest information. 6.8 4.7 µH 3.3 µH 2.2 µH µH 1.5 µH 100 100 Document 644-4 Revised 11/30/09 © Coilcraft, Inc. 2009