2
Technical Data 4311
Effective November 2015
SD52
High power density, low profile shielded power inductors
www.eaton.com/elx
Product Specifications
Part Number
6
OCL
1
(μH) ±20% Part marking
I
rms
2
(A)
I
sat
3
(A)
DCR
4
(Ω)
typ. (V us) typ.
SD52-1R2-R 1.20 A 2.33 3.14 0.0279 1.49
SD52-2R2-R 2.20 B 1.98 2.30 0.0385 2.03
SD52-3R5-R 3.50 C 1.73 1.82 0.0503 2.57
SD52-4R7-R 4.70 D 1.63 1.64 0.0568 2.84
SD52-6R8-R 6.80 E 1.39 1.28 0.0777 3.65
SD52-100-R 10.0 F 1.11 1.11 0.1215 4.19
SD52-150-R 15.0 G 0.97 0.88 0.1618 5.27
SD52-220-R 22.0 H 0.86 0.73 0.2042 6.35
SD52-270-R 27.0 J 0.73 0.65 0.2864 7.16
SD52-330-R 33.0 K 0.70 0.61 0.3074 7.70
SD52-470-R 47.0 L 0.58 0.50 0.4465 9.32
SD52-680-R 68.0 M 0.47 0.42 0.6829 11.21
SD52-101-R 100 N 0.39 0.35 1.0000 13.37
SD52-151-R 150 O 0.31 0.28 1.6100 17.00
1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.25 Vrms, 0.0 Adc.
2. Irms: DC current for an approximate ∆T of 40 °C without core loss. De-rating is necessary for AC currents.
Temperature rise is dependent upon several factors, including the PCB pad layout, trace thickness and width, air-flow
and proximity to other heat generating components. It is recommended the part temperature not exceed 125 °C under
worst case operating conditions and therefore, the temperature rise should be verified in the end use application.
3. Isat: Peak current for approximately 30% rolloff at +20 °C.
4. DCR limits @ 20°C.
5. Applied Volt-Time product (V-us) across the inductor at 100 kHz necessary to generate a core loss equal to 10% of
the total losses for 40 °C temperature rise.
6. Part number definition: SD52-xxx-R
SD52= Product code and size
-xxx=Inductance value in µH, R= decimal point - If no R is present, then last character equals the number of zeros
Dimensions (mm)
Packaging information (mm)
Parts packaged on 13” Diameter reel, 3,500 parts per reel.
RE
MMENDED P
B LAY
2.
2
lc
.
.
2
lc
in #1 in
ic
t
r
Part marking
.
5
±
.1
xxxx
52
K
E
TI
N A-
.5 Di
2.
±
.
5
.5 Dia.
+0.1/-0.0
.7
5.5
2.
.
Ao=5.72mm
Bo=5.72mm
Ko=2.30mm
Part Marking: 1st digit= the inductance value per part marking designator, 2nd digit = bi-weekly production date code, 3rd digit = last digit of
the year produced, 4th digit= internal manufacturing code.
52 = the product size code.
Do not route traces or vias underneath the inductor.
