Effective February 2017 Technical Data 4122 Supersedes October 2015 HC3 High current power inductors Applications Distributed power systems DC-DC converters General-purpose low voltage supplies Computer systems Servers Point of Load (POL) converters Industrial Equipment Environmental data Storage temperature range (component): -40C to +125C Operating temperature range: -40C to +125C (ambient plus self-temperature rise) Product description Solder reflow temperature: J-STD-020D compli- Compact footprint ant. Designed for high density, high current/low voltage applications Packaging Foil technology that adds higher reliability factor over the traditional magnet wire used for higher Supplied in bulk packaging, 24 parts per tray frequency circuit designs Inductance range from 0.50uH to 6.52uH Pb Current range from 30 to 120 Amps Ferrite core materialHC3 Technical Data 4122 Effective February 2017 High current power inductors Product specifications 5 1 2 3 4 Part number OCL (H) 20% l (amps) l (amps) DCR (m ) maximum 20C Volt-sec (V-s) ref. rms sat HC3-R50-R 0.50 78.00 120 0.42 17.33 HC3-1R0-R 1.05 78.00 78 0.42 17.33 HC3-2R2-R 2.05 55.50 60 0.70 26.01 HC3-3R3-R 3.63 42.45 46 1.20 34.65 HC3-4R7-R 4.98 33.80 38 2.17 43.30 HC3-5R6-R 5.68 33.80 34.5 2.17 43.30 HC3-6R0-R 6.52 33.80 30.0 2.17 43.30 3. Peak current for approximately 30% rolloff ( 20C). 1. OCL (Open Circuit Inductance) Test parameters: 300kHz, .25Vrms, 0.0ADC & Isat. 4. Applied Volt-Time product (V-s) across the inductor. This value represents the applied V-s at 300kHz 2. DC current for approximately T of 40C without core loss De-rating is necessary for AC currents. necessary to generate a core loss equal to 10% of the total losses for a 40C temperature rise. PCB layout, trace thickness and width, air flow and proximity of other heat generating components 5. Part number definition - HC3-xxx-R: will affect temperature rise. It is recommended that the temperature of the part not exceed 125C HC3 = Product code and size under worst case conditions verified in the end application. -xxx = Inductance value R = Decimal point (if no R is present, last character equals number of zeros ) -R Suffix = RoHS compliant Dimensionsmm RECOMMENDED TOP VIEW PCB PAD LAYOUT FRONT VIEW SCHEMATIC 14.5 typ 1 22.0 4.0 typ HT max HC3-xxx 30.0 max wwllyy R 2 5.50 19.0 5.50 3.0 typ 25.3 max Part number Height max HC3-R50-R 18.0 Part marking: HC3-xxx (-xxx= inductance value, R= decimal point, HC3-1R0-R 17.5 if no R is present then last character equals number of zeros) HC3-2R2-R 17.5 wwllyy= date code, R= Revision level HC3-3R3-R 17.5 HC3-4R7-R 17.5 HC3-5R6-R 17.5 HC3-6R0-R 17.5 www.eaton.com/electronics 2