Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.25 V
rms
, 0.0 Adc,
+25 °C.
2.
Full Load Inductance (FLL) Test Parameters: 100 kHz, 0.25 V
rms
, I
sat
, @ +25 °C.
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 20% rolloff at +25 °C.
5.
K-factor: Used to determine B
p-p
for core loss (see graph). B
p-p
= K * L *
∆I.
B
p-p
: (Gauss), K: (K-factor from table), L: (Inductance in μH),
∆I
(Peak to peak
ripple current in amps).
6.
Part Number Definition: HCMA1305-yyy-R
- HCMA1305 = Product code and size
yyy= Inductance value in μH, R = decimal point,
if no R is present then third character
equals
number of zeros.
“-R” suffix = RoHS compliant
2
www.eaton.com/electronics
HCMA1305
Automotive grade high current power inductors
Dimensions-
mm
Technical Data
10277
Effective
October 2017
Top View
13.3±0.5
5.0 max.
Side View
2.54±0.3
Bottom View
Recommended Pad Layout
3.3
Schematic
12.2±0.3
AXXX
wlyy R
8.5 typ.
4.0±0.5
7.7 typ.
14.2
4.9
Part Marking: A = Automotive grade, xxx = Inductance value in µH, R = decimal point, if no R is present, third 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
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