RA7338_16 Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Power Inductor

Document 1300-1
Power Inductor – RA7338-AE ForMicrochip1600WBus
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.
Part   ^{Inductance (µH)1   DCR (mOhms)2}
number
min   max
typ   max
RA7338-AE 17.6
24.2
0.68 0.75
SRF   ^{Isat (A)3   Irms (A)4}
(MHz) 10% drop 20% drop 30% drop 20°C rise  40°C rise
9.25
19
22
24
34.0
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.
g
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 maxi-
mum ratings. Click for temperature derating information.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
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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.