2
Technical Data 10296
Effective October 2017
www.eaton.com/electronics
Product Specifications
Dimensions (mm)
HCMA1707
Automotive grade high current power inductors
Part Number6
OCL1
±20%
(µH)
FLL min.2
(µH)
Irms
3
(A)
Isat
4
(A)
DCR (mΩ)
@ +20 °C
(typical)
DCR (mΩ)
@ +20 °C
(maximum) K-factor5
HCMA1707-1R5-R 1.5 0.96 40 40 1.85 2.15 124
HCMA1707-2R2-R 2.2 1.41 37 34 2.15 2.50 103
HCMA1707-4R7-R 4.7 3.01 27 24 4.12 4.72 76
HCMA1707-6R8-R 6.8 4.35 20 22 6.55 7.55 60
HCMA1707-8R2-R 8.2 5.25 16 20 8.10 8.70 55
HCMA1707-100-R 10 6.40 14 18 9.30 10 47
HCMA1707-150-R 15 9.60 12 13 14.5 15.5 43
HCMA1707-220-R 22 14.1 9.5 11 21 23 37
HCMA1707-330-R 33 21.1 9.0 10 35 37 28
HCMA1707-470-R 47 30.1 6.8 7.5 41 47 25
HCMA1707-680-R 68 43.5 5.2 6.5 74 85 20
1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.25 Vrms, 0.0 Adc,
+25 °C.
2. Full Load Inductance (FLL): Test parameters: 100 kHz, 0.25 Vrms, Isat, +25 °C.
3. Irms: 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.. Isat : Peak current for approximately 20% rolloff at +25 °C.
5. K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * ∆I.
Bp-p :(Gauss), K: (K-factor from table), L: (Inductance in μH), ∆I (Peak to peak
ripple current in amps).
6. Part Number Definition: HCMA1707-yyy-R
- HCMA1707 = Product code and siz
yyy= Inductance value in uH, R = decimal point,
if no R is present then third character = number of zeros.
-“-R” suffix = RoHS compliant
HCMA1707
XXX
wwllyy R
All soldering surfaces coplanar within 0.10 millimeters.
Part marking: HCMA1707; A = Automotive grade, XXX = initial inductance in µH, R = decimal point;
if no R is present, last digit equals number of zeros.
wwllyy = date code, R = revision level
Color: Grey
Do not route traces or vias underneath the inductor
DCR measured between point “a” and point “b”
ab