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°Cto +125°C
•Operating temperature range: -40°C to +125°C
(range is application specific)
•Solder reflow temperature: +260°C max. for 10 seconds
maximum
Packaging
•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) Irms: DC current for an approximate ∆Tof 40°C without core loss. Derating is
necessary for ACcurrents.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.
(3) Isat Amperes peak for approximately 35% rolloff (@25°C)
(4) K-factor: Used to determine B p-p for core loss (see graph).
Bp-p = K*L*∆I, B p-p(mT), K: (K factor from table), L: (Inductance in µH),
∆I(Peak to peak ripple current in Amps).
(5) Part Number Definition: SD8328-xxx-R
SD8328 = Product code and size; -xxx = Inductance value in uH;
R=decimal point; If no R is present, third character = # of zeros.
-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
Mechanical Diagrams