g Document 1300-1 Power Inductor – RA7338-AE For Microchip 1600W Bus Balancer Reference Design • High current, high inductance power inductors • Designed for high current power supply applications • Flat wire windings provide extremely low DC and AC resistance. • Suitable for high temperature environments, up to 125°C ambient • AEC-Q200 Grade 1 qualified (−40°C to +125°C) • Shield has solderable tabs for additional mounting stability. Core material Ferrite Environmental RoHS compliant, halogen free Terminations RoHS compliant tin-silver over copper Shield tabs RoHS compliant bright tin over nickel over stainless steel Weight 109 g Ambient temperature –40°C to +125°C with Irms current, Maximum part temperature +165°C (ambient + temp rise). Storage temperature Component: –40°C to +85°C. Tray packaging: –40°C to +80°C Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 9 parts per tray PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. Inductance (µH)1 DCR (mOhms)2SRF Isat (A)3 Irms (A)4 Part number min max typ max (MHz) 10% drop 20% drop 30% drop 20°C rise 40°C rise RA7338-AE 17.6 24.20.68 0.75 9.251922 2434.0 44.5 1. Inductance tested at 100 kHz, 0.1 Vrms on Agilent/HP 4192A. 2. DCR measured on a Keithley 580 micro-ohmmeter or equivalent. 3. DC current at 25°C that causes an inductance drop of 30% (typ) from its value without current. Click for temperature derating information. 4. Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Click for temperature derating information. 5. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 1300-1 Revised 02/02/16 © Coilcraft Inc. 2016 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 1300-2 Power Inductor – RA7338-AE Typical L vs Current RA7338-AE 100 1.41 ± 0.04 35,8 ±1,0 80 70 XXXX X Inductance (µH) 60 50 40 Internal code 1.66 ± 0.04 42,2 ±1,0 30 RA7338-AE 20 1.10 max 28,6 10 0.1 10 1 100 Current (A) 0.111 2,80 Typical L vs Frequency 0.020 0,50 Cover tabs provided for mounting stability only. 100 0.246 6,25 0.193 max 4,9 0.150 3,80 80 70 0.364 0.364 9,25 9,25 Inductance (µH) 60 50 40 CL 30 RA7338-AE 20 Dimensions are in 10 0.01 1 0.1 inches mm 10 CL 0.689 17,5 0.443 11,25 0.039 1,00 0.157 4,0 0.443 0.689 11,25 17,5 0.258 6,55 0.181 4,60 Recommended PC board layout Frequency (MHz) US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 1300-2 Revised 02/02/16 © Coilcraft Inc. 2016 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.