Datasheet

SRR1280 Series - Shielded SMD Power Inductors
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
*RoHS COMPLIANT
Inductance 100 kHz
Q
Test SRF RDC I rms I sat
Bourns Part No.
(µH) Tol. %
Typ.
Frequency Typ. Max. Max. Typ.
(MHz) (MHz) (mΩ) (A) (A)
SRR1280-1R1Y 1.1 ± 30 26 7.96 85 6.5 10.20 14.00
SRR1280-1R2Y 1.2 ± 30 28 7.96 83 18.0 6.60 7.80
SRR1280-1R4Y 1.4 ± 30 24 7.96 80 9.8 9.80 12.00
SRR1280-2R4Y 2.4 ± 30 20 7.96 45 10.0 9.20 10.50
SRR1280-3R3Y 3.3 ± 30 20 7.96 40 12.0 8.80 9.80
SRR1280-3R5Y 3.5 ± 30 20 7.96 36 12.0 8.80 9.80
SRR1280-4R5Y 4.5 ± 30 20 7.96 34 13.5 8.50 9.00
SRR1280-4R7Y 4.7 ± 30 22 7.96 30 15.5 8.20 8.80
SRR1280-5R6Y 5.6 ± 30 20 7.96 24 16.0 8.00 8.50
SRR1280-6R1Y 6.1 ± 30 20 7.96 23 18.0 6.60 7.80
SRR1280-6R8Y 6.8 ± 30 20 7.96 22 18.5 7.60 8.00
SRR1280-7R5Y 7.5 ± 30 16 7.96 21 17.5 6.40 7.00
SRR1280-7R6Y 7.6 ± 30 15 7.96 21 20.0 5.90 6.50
SRR1280-8R2Y 8.2 ± 30 22 2.52 20 20.5 6.20 6.80
SRR1280-100M 10.0 ± 20 24 2.52 17 19.5 6.00 6.30
SRR1280-120M 12.0 ± 20 26 2.52 15 28.0 5.60 6.60
SRR1280-150M 15.0 ± 20 26 2.52 13 28.5 5.20 5.00
SRR1280-180M 18.0 ± 20 24 2.52 12 35.0 4.80 4.60
SRR1280-220M 22.0 ± 20 20 2.52 11 38.6 4.30 4.10
SRR1280-270M 27.0 ± 20 26 2.52 10 52.0 3.90 3.70
SRR1280-330M 33.0 ± 20 28 2.52 9.5 57.0 3.50 3.30
SRR1280-390M 39.0 ± 20 24 2.52 8.5 70.0 3.20 3.10
SRR1280-470M 47.0 ± 20 24 2.52 7.5 80.0 2.90 2.80
SRR1280-560M 56.0 ± 20 24 2.52 7.0 100.0 2.60 2.50
SRR1280-680M 68.0 ± 20 20 2.52 6.5 120.0 2.40 2.30
SRR1280-820M 82.0 ± 20 20 0.796 5.0 130.0 2.30 2.20
SRR1280-101M 100.0 ± 20 18 0.796 4.5 150.0 2.10 2.00
SRR1280-121K 120.0 ± 10 16 0.796 4.3 200.0 1.95 1.95
SRR1280-151K 150.0 ± 10 24 0.796 4.1 270.0 1.85 1.90
SRR1280-181K 180.0 ± 10 24 0.796 4.0 300.0 1.75 1.88
SRR1280-221K 220.0 ± 10 24 0.796 3.4 400.0 1.60 1.70
SRR1280-271K 270.0 ± 10 20 0.796 3.1 450.0 1.20 1.60
SRR1280-331K 330.0 ± 10 18 0.796 2.9 600.0 1.10 1.40
SRR1280-391K 390.0 ± 10 20 0.796 2.7 680.0 1.00 1.40
SRR1280-471K 470.0 ± 10 20 0.796 2.2 880.0 0.90 1.25
SRR1280-561K 560.0 ± 10 20 0.796 2.0 960.0 0.80 1.15
SRR1280-681K 680.0 ± 10 26 0.796 1.7 1300.0 0.75 0.97
SRR1280-821K 820.0 ± 10 20 0.796 1.4 1500.0 0.70 0.94
SRR1280-102K 1000.0 ± 10 40 0.252 1.3 1700.0 0.68 0.80
Features
■ Available in E12 values
■ Inductance as low as 1.1 µH
■ Current rating to 10.2 amps
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
Electrical Specifications
470
Product Dimensions
Recommended Layout
100
12.5 ± 0.3
(.492 ± .012)
12.5 ± 0.3
(.492 ± .012)
7.5 ± 0.5
(.295 ± .020)
5.0 ± 0.3
(.197 ± .012)
7.0
(.276)
TYP.
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
Wire .............Enameled copper wire 130
Terminal.....................................Cu/Ni/Sn
Rated Current
....................Ind. drop 25 % typ. at Isat
Temperature Rise ..................40 °C max.
at rated Irms
Packaging ....................400 pcs. per reel
Electrical Schematic
DIMENSIONS:
MM
(INCHES)
2.9
(.114)
REF.
2.9
(.114)
REF.
5.4
(.213)
REF.
6.8
(.268)
REF.