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SRU3009 Datasheet, PDF (1/2 Pages) Bourns Electronic Solutions – Shielded SMD Power Inductors
*RoHS COMPLIANT
Features
■ Maximum height of 1.05 mm
■ Current up to 1.0 A
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRU3009 Series - Shielded SMD Power Inductors
Electrical Specifications
Bourns
Part No.
Inductance
100 KHz
Test SRF RDC Irms Isat
Tol. Q Freq. Typ. Max. Max. Typ.
**K-
(µH) % Ref. (MHz) (MHz) (mΩ) (A) (A) Marking Factor
SRU3009-1R3Y 1.3 ±30 10 7.96 210 115 1.00 1.10
A
1698
SRU3009-2R2Y 2.2 ±30 8.5 7.96 150 145 0.80 0.85
B
1340
SRU3009-3R3Y 3.3 ±30 8 7.96 130 225 0.65 0.72
C
1107
SRU3009-4R7Y 4.7 ±30 9 7.96 100 290 0.48 0.50
D
943
SRU3009-6R8Y 6.8 ±30 8 7.96 85 500 0.40 0.43
E
728
SRU3009-100Y 10 ±30 8.5 2.52 60 760 0.28 0.35
F
621
SRU3009-220Y 22 ±30 20 2.52 40 1450 0.22 0.25
G
417
**K-Factor: To calculate core flux density, Bp-p (gauss) = K x L(µH) x Δ I (peak-to-peak ripple current, A),
determine core loss from Core Loss vs. Flux Density plot.
Core Loss vs. Flux Density
100
10
1 MHz
1
500 KHz
300 KHz
200 KHz
100 KHz
50 KHz
0.1
General Specifications
Test Voltage ....................................0.1 V
Reflow Soldering .. 230 °C, 50 sec. max.
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Resistance to Soldering Heat
............................. +260 °C for 10 sec.
Materials
Core....................Ferrite DR and RI core
Wire ............................Enameled copper
Terminal ....................................Ag/Ni/Sn
Rated Current
...................Ind. drop 35 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Packaging................. 1,500 pcs. per reel
Product Dimensions
A
3.50 ± 0.20
(.138 ± .008)
0.01
10
Electrical Schematic
100
1000
Flux Density Bp-p (gauss)
10000
Recommended Layout
REF.
1.30
(.039)
1.20
(.047)
REF.
4.20
(.165)
1.80 REF.
(.071)
REF.
3.30 ± 0.20
(.130 ± .008)
0.95 ± 0.10
(.037 ± .004)
1.10
(.043)
TYP.
0.50
(.020)
TYP.
0.50
(.020)
TYP.
2.30
(.091)
TYP.
DIMENSIONS:
MM
(INCHES)
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.