Effective August 2017 Technical Data 4146 Supersedes September 2011 SD8350 Low profile shielded drum core power inductors Applications Server power Notebook and laptop power High power LED driver, portable devices Base station, telecom, and networking Battery chargers, RAM power supply Industrial and automotive power systems Noise filtering output filter chokes Buck/boost converters, output converters Environmental data Product features Storage temperature range (component): -40 C to +125 C Low-profile surface mount inductor Operating temperature range: -40 C to +125 C 9.5 mm x 8.3 mm x 4.5 mm shielded drum core (ambient plus self-temperature rise) Ferrite core material Solder reflow temperature: Inductance range from 1.5 H to 100 H J-STD-020 (latest revision) compliant Current range from 0.8 A to 9.1 A HALOGEN Frequency range up to 1 MHz Pb HF FREESD8350 Technical Data 4146 Low profile shielded drum core power inductors Effective August 2017 Product specifications 1 2 3 Rated OCL I I DCR m DCR m rms sat 4 Part Number Inductance (H) H30% (A) (A) +20 C Typ +20 C Max K-factor SD8350-1R8-R 1.8 1.5 5.50 9.1 11.8 14.0 16.0 SD8350-3R9-R 3.9 3.2 4.50 6.3 16.2 19.0 9.6 SD8350-4R7-R 4.7 4.2 4.10 5.5 18.5 22.0 8.5 SD8350-6R8-R 6.8 6.8 3.90 4.4 20.8 25.0 7.6 SD8350-100-R 10 9.9 3.20 4.0 31.4 36.0 6.3 SD8350-150-R 15 13.6 2.30 2.9 45.0 53.0 5.3 SD8350-220-R 22 20.4 1.80 2.6 63.5 75.0 4.4 SD8350-330-R 33 31.4 1.40 2.2 111.4 125.0 3.5 SD8350-470-R 47 44.9 1.30 1.8 130.0 150.0 2.9 SD8350-680-R 68 65.1 1.00 1.5 200.8 240.0 2.4 SD8350-101-R 100 99.7 0.80 1.3 308.0 360.0 2.0 1. Open Circuit Inductance Test Parameters: 100 kHz, 0.1 Vrms, 0.0 Adc. 4. K-factor: Used to determine B for core loss (see graph). p-p 2. I : DC current for an approximate T of 40 C without core loss. Derating is necessary for AC B = K*L*I, B (mT), K: (K factor from table), L: (Inductance in H), I (Peak to rms p-p p-p currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating peak ripple current in Amps). components will affect the temperature rise. It is recommended that the temperature of the part 5. Part Number Definition: SD8350-xxx-R not exceed +125 C under worst case operating conditions verified in the end application. SD8350 = Product code and size -xxx = Inductance value in H 3. I Amps peak for approximately 35% rolloff ( +25 C) R = decimal point If no R is present, third character equals number of zeros. sat -R suffix = RoHS compliant Dimensions-mm RECOMMENDED PCB LAYOUT SCHEMATIC FRONT VIEW TOP VIEW BOTTOM VIEW 8.3 max. 2.5 2.9 1 1 4.5 max. 1.2 1.8 6.3 9.5 max. LEFT VIEW 5.7 XXX 2 wwlly R 2 wwlly - or - wwllyy = Date code R = Revision level Part Marking: xxx = Inductance value in H. (R = Decimal point). If no R is present, third character = number of zeros Do not route traces or vias underneath the inductor Packaging information-mm Supplied in tape-and-reel packaging, 750 parts per reel, 13 diameter reel. www.eaton.com/electronics 2