Description
• 125°C maximum temperature operation
• Low profile surface mount inductor
•
8.3mm x 9.5mm x 3.0mm shielded drum core
• Ferrite core material
• Inductance range from 2.7µH to 100µH
• Current range from 6.6 Amps to 0.8 Amps
• Frequency range up to 1MHz
Applications
• Buck or Boost inductor
• Noise filtering output filter chokes
• Notebook power/display
• LCD Monitors/Displays/Televisions
• Battery chargers, LCD bias supplies
• Battery and Industrial power systems
• Computer, DVD players
• Portable power devices, DC-DC converters
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(range is application specific)
• Solder reflow temperature: +260°C max. for 10 seconds
maximum
P
ackaging
• Supplied in tape and reel packaging, 1280 per reel
SD8328 Series
Low Profile Power Inductors
Part Number Rated OCL (1) Irms(2) Isat (3) DCR (Ω) DCR (Ω) K-factor
Inductance µH±30% Amperes Amperes mΩ @20°C mΩ @20°C (4)
(µH) (Typical) (Maximum)
SD8328-2R5-R 2.5 2.7 6.6 4.5 12 15.6 43
SD8328-3R3-R 3.3 3.4 6.1 4.0 14 18.0 33
SD8328-4R7-R 4.7 5.0 4.5 3.6 19 24.7 23
SD8328-7R3-R 7.3 7.6 3.4 2.9 30 39 15
SD8328-100-R 10 9.1 3.3 2.6 36 45 11
SD8328-150-R 15 14.5 2.35 2.0 53 69 7.2
SD8328-220-R 22 21.1 1.85 1.7 76 99 4.9
SD8328-330-R 33 31.9 1.45 1.4 120 156 3.3
SD8328-470-R 47
44.9
1.30
1.2
150 194 2.3
SD8328-680-R 68 64.2 0.98 1.0 220 286 1.6
SD8328-101-R 100
97.0
0.80
0.8
330
430
1.1
(1) Open Circuit Inductance Test Parameters: 100kHz, 0.1V, 0.0Adc.
(2)
Ir
ms:
DC current for an approximate ∆T of 40°C without core loss. Derating is
necessar
y f
or AC currents
.
PCB la
y
out, trace thickness and width, air-flow, and
proximity of other heat generating components will affect the temperature rise. It
is recommended that the temper
ature of the par
t not e
xceed 125
°C under worst
case oper
ating conditions v
er
ified in the end application.
(3) Isat Amperes peak for approximately 35% rolloff (@25°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
B p-p = K*L*
∆
I, B p-p(mT), K: (K factor from table), L: (Inductance in µH),
∆
I (Peak to peak r
ipple current in Amps).
(5) Part Number Definition: SD8328-xxx-R
SD8328 = Product code and siz
e;
-xxx = Inductance v
alue in uH;
R = decimal point;
If no R is present, third char
acter = # of z
eros
.
-R suffix = RoHS compliant
Dimensions are in millimeters.
xxx = Inductance value in uH. R = decimal point. If no R is present third character = # of zeros. wwllyy = Date code, R = Revision level.
RECOMMENDED PCB LAYOUT
SCHEMATIC
1
2
9.5
max
8.3
max
3.0
max
2.5
typ
1.2
typ
6.3
typ
XXX
wwlly R
TOP VIEW FRONT VIEW
BOTTOM VIEW
5.7
2.9
1.8
1
2
LEFT VIEW
Mec
hanical Dia
grams
