Document 636 -1 For National Semiconductor Power Inductor GA3252-AL LM3433 LED Driver High current surface mount toroidal power inductor Specified by National Semiconductor for 2 A to 14 A output applications Core material Ferrite Terminations RoHS compliant tin-silver (96.5/3.5) over copper. Other terminations available at additional cost. Weight 11.6 g Ambient temperature 40C to +85C with Irms current, +85C to +125C with derated current Storage temperature Component: 40C to +85C. Tape and reel packaging: 40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30C / 85% relative humidity) Mean Time Between Failures (MTBF) 26,315,789 hours Packaging 200 per 13 reel Plastic tape: 44 mm wide, 0.5 mm thick, 32 mm pocket spacing, 10.4 mm pocket depth PCB washing Only pure water or alcohol recommended 5 6 2 3 4 Isat (A) Irms (A) Part Inductance DCR max SRF typ 1 number 20% (H) (Ohms) (MHz) 10% drop 20% drop 30% drop 20C rise 40C rise GA3252-AL 12.0 0.017 20 6.5 8.0 13 6.5 10 1. When ordering, specify termination and packaging codes: 0.079 2,00 GA3252-ALD Termination: L = RoHS compliant tin-silver over copper. GA3252-AL Special order: 0.940 0.700 max T = RoHS tin-silver-copper (95.5/4/0.5) or 23,88 17,78 S = non-RoHS tin-lead (63/37). XXXXY Packaging: D = 13 machine-ready reel EIA-481 embossed plastic tape (200 per full reel). 0.820 B = Less than full reel 20,83 0.940 In tape, but not machine ready. To have a leader and max 23,88 Recommended trailer added ( 25 charge), use code letter D instead. Land Pattern 2. Inductance tested at 100 kHz, 0.1 Vrms on Agilent/HP 4192A. Parts manufactured prior to December 2011 may 3. DCR measured on a Keithley 580 micro-ohmmeter or equivalent. be marked differently. 4. SRF measured on an Agilent/HP 8753ES network analyzer. 5. DC current at which the inductance drops the specified amount from its value without current. 6. Current that causes the specified temperature rise from 25C ambient. 0.413 max 7. Electrical specifications at 25C. 10,50 Refer to Doc 362 Soldering Surface Mount Components before soldering. 0.820 0.005 / 0,13 mm 20,83 inches Dimensions are in mm Document 636-1 Revised 12/16/11 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2013 This product may not be used in medical or high Taiwan +886-2-2264 3646 sales coilcraft.com.tw risk applications without prior Coilcraft approval. China +86-21-6218 8074 sales coilcraft.com.cn Specification subject to change without notice. Singapore + 65-6484 8412 sales coilcraft.com.sg Please check web site for latest information.Document 636-2 Power Inductor GA3252-AL L vs Current L vs Frequency 1000 1000 100 100 10 10 1 1 0.1 1 10 100 0.1 1 10 100 Current (A) Frequency (MHz) Irms Derating 120 110 100 90 80 70 60 50 40 30 20 10 0 -40 -20 020406080 100 120 140 Ambient temperature (C) Document 636-2 Revised 12/16/11 US +1-847-639-6400 sales coilcraft.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2013 This product may not be used in medical or high Taiwan +886-2-2264 3646 sales coilcraft.com.tw risk applications without prior Coilcraft approval. China +86-21-6218 8074 sales coilcraft.com.cn Specification subject to change without notice. Singapore + 65-6484 8412 sales coilcraft.com.sg Please check web site for latest information. Percent of rated Irms Inductance (H) 25C Inductance (H)