Effective July 2017 Technical Data 4133 Supersedes March 2007 HCF1305 High frequency, high current power inductors Applications Next generation processors High current DC-DC converters VRM, multi-phase buck regulators PC Workstations, Routers, Servers Telecom soft switches Base stations Environmental data Storage temperature range (component): -40 C to +125 C Product features Operating temperature range: -40 C to +125 C 12.5 mm x 12.5 mm x 5.0 mm surface mount (ambient plus self-temperature rise) package Solder reflow temperature: Ferrite core material J-STD-020 (latest revision) compliant Inductors designed for higher speed switch HALOGEN mode applications requiring low voltage and high Pb HF current FREE Design utilizes ferrite core with high DC bias resistance and low core loss Inductance range from 0.47 H to 4.7 H Current range from 36.0 A to 10.4 A Frequency range 100 kHz to 1 MHzHCF 1305-XXX wwllyy-R HCF1305 Technical Data 4133 Effective July 2017 High frequency, high current power inductors Product specifications Part Number Rated OCL (1) Irms (2) Isat (3) Isat2 (4) DCR DCR K-factor Inductance H 20% Amperes Amperes Amperes m 20C m 20C (5) (H) (Typical) (Maximum) HCF1305-R47-R 0.47 0.47 32.0 36.0 30.0 0.83 1.00 21 HCF1305-R56-R 0.56 0.56 32.0 30.0 22.5 0.83 1.00 21 HCF1305-1R0-R 1.00 1.00 22.0 24.0 20.0 1.58 1.90 14 HCF1305-1R2-R 1.20 1.20 22.0 20.0 15.0 1.58 1.90 14 HCF1305-1R8-R 1.80 1.80 16.3 18.0 15.0 2.58 3.10 10 HCF1305-2R2-R 2.20 2.20 16.3 15.0 11.2 2.58 3.10 10 HCF1305-3R0-R 3.00 3.00 13.2 14.4 12.0 4.08 4.90 8.3 HCF1305-3R3-R 3.30 3.30 13.2 12.5 9.0 4.08 4.90 8.3 HCF1305-4R0-R 4.00 4.00 10.9 12.0 10.0 6.0 7.2 6.9 HCF1305-4R7-R 4.70 4.70 10.9 10.4 7.5 6.0 7.2 6.9 1) OCL: Open Circuit Inductance test parameters: 100 kHz, 0.1 Vrms, 0.0 Adc. OCL -40 C can 5) K-factor: Used to determine B p-p for core loss (see graph). B p-p = K*L*I be lower than OCL +20 C by 15% max. B p-p:(mT), K: (K factor from table), L: (Inductance in H), I (Peak to peak ripple current in 2) Irms: DC current for an approximate DT of 40 C without core loss. Derating is necessary for Amps). AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the Part number definition: temperature of the part not exceed +125 C under worst case operating conditions verified in HCF1305-XXX-R the end application. HCF1305 = Product code and size 3) Isat1: Amperes Peak for approximately 30% rolloff ( +25 C) XXX = Inductance value in uH. 4) Isat2: Amperes Peak for approximately 30% rolloff ( +125 C) R = Decimal point. If no R is present, third character = of zeros -R suffix indicates RoHS compliant Dimensions- mm TOP V IEW BOTTOM VI EW FRONT VIEW DIMENSION TABLE RECOMMENDED PCB LAYOUT SCHEMATIC A F L A: 12.5max G: 4.00 Ref. B: 12.5max H: 5.40 Ref. C 1 2 1 2 K C: 5.0max I: 3.00 Ref. H D: 2.00 ref J: 4.00 Ref. B G E: 2.40 +/- 0.10 K: 4.00 Ref. J HCF1305-XXX D 3 F: 6.90 +/- 0.30 L: 3.4 Ref. wwllyy R wwllyy=Date code, R=Revision Level I I E Do not route traces or vias underneath the inductor Packaging information - mm 1.5 dia 4.0 +0.1/-0.0 1.5 dia A min 2.0 1.75 11.5 24.0 +/-0.3 B0 K0 A A0 16.00 SECTION A-A A0= 12.60 mm B0= 12.60 mm User direction of feed K0= 5.50 mm Parts packaged on a 13 Diameter reel. 600 parts per reel. www.eaton.com/electronics 2