2
Technical Data 10433
Effective September 2015
HCM1307
High current power inductors
www.eaton.com/elx
Product Specifications
Part Number
6
OCL
1
(μH) ±20%
FLL
2
(μH)
minimum
I
rms
3
(amps)
I
sat
4
(amps)
DCR (mΩ)
typical @ +20°C
DCR (mΩ)
maximum @ +20°C K-factor
5
HCM1307-R47-R 0.47 0.26 38 63 1.0 1.2 192
HCM1307-1R0-R 1.0 0.56 29 49 1.7 2.0 111
HCM1307-3R3-R 3.3 1.85 15 40 4.3 4.5 88
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 1.0Vrms, 0.0Adc, @ +25°C
2. Full Load Inductance (FLL) Test Parameters: 100kHz, 1.0Vrms, @ I
sat
, @ +25ºC
3. I
rms
: DC current for an approximate temperature rise of 40°C without core loss. Derating is necessary for 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 temperature of the part not exceed 125°C under worst case operating
conditions verified in the end application.
4. I
sat
: Peak current for approximately 30% rolloff @ +25°C
5. K-factor: Used to determine B
p-p
for core loss (see graph). Bp-p = K * L * ΔI. B
p-p
: (Gauss), K: (K-factor from table), L:
(Inductance in μH), ΔI (Peak to peak ripple current in Amps).
6. Part Number Definition: HCM1307-xxx-R
HCM1307 = Product code and size
xxx= inductance value in μH, R= decimal point ,
If no R is present then last character equals number of zeros
-R suffix = RoHS compliant
Dimensions (mm)
Part marking: XXX=Inductance value in uH, R= decimal point. If no R is present then last character equals number of zeros.
wlyy=date code, R=revision level
All soldering surfaces to be coplanar within 0.10 millimeters
Tolerances are ±0.3 millimeters unless stated otherwise
Color: Grey
Do not route traces or vias underneath the inductor
Recommended Pad Layout
Schematic
1
2
XXX
wlyy R
1
2
1
2
13.2
±1.0
6.3
±0.2
3.8
±0.5
2.5
±0.3
8.0
ref
14.20
4.9
ab
