Datasheet

7.2
(.283)
1.8
(.071)
1.8
(.071)
4.0
(.157)
REF.
REF. REF.
REF.
Features
■ Available in E6 series
■ Unit height of 3.8 mm
■ Current up to 7.2 A
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
SRU1038 Series - Shielded SMD Power Inductors
Test Voltage .......................................1 V
.. 230 °C, 50 sec. max.
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Rated Current
...................Ind. drop 35 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Resistance to Soldering Heat
............................... 260 °C for 10 sec.
Moisture Sensitivity Level ..................... 1
................. N/A
Bourns
Part No.
Inductance
100 KHz
Q
Ref.
Test
Freq.
(MHz)
SRF
Typ.
(MHz)
RDC
(mΩ)
Irms
Max.
(A)
Isat
Typ.
(A)
**K-
Factor(μH)
Tol.
%
SRU1038-1R5Y 1.5 ± 30 14 7.96 65.0 5.2 7.20 7.00 177
SRU1038-2R2Y 2.2 ± 30 12 7.96 55.0 7.7 6.80 6.50 145
SRU1038-2R5Y 2.5 ± 30 12 7.96 50.0 12.5 6.10 6.00 136
SRU1038-3R5Y 3.5 ± 30 14 7.96 24.0 11.5 5.50 5.50 106
SRU1038-3R8Y 3.8 ± 30 14 7.96 35.0 15.0 5.50 5.50 104
SRU1038-5R0Y 5.0 ± 30 12 7.96 30.0 14.5 4.60 4.80 94
SRU1038-5R2Y 5.2 ± 30 12 7.96 30.0 22.0 4.60 4.80 92
SRU1038-6R2Y 6.2 ± 30 12 7.96 25.0 16.5 4.00 4.20 84
SRU1038-6R8Y 6.8 ± 30 13 7.96 36.0 35.0 3.90 4.00 80
SRU1038-8R2Y 8.2 ± 30 12 7.96 22.0 32.0 3.80 3.90 73
SRU1038-100Y 10.0 ± 30 24 7.96 20.0 25.0 3.80 3.60 64
SRU1038-150Y 15.0 ± 30 24 2.52 16.0 37.0 2.80 2.70 51
SRU1038-220Y 22.0 ± 30 20 2.52 12.0 55.8 2.20 2.30 43
SRU1038-270Y 27.0 ± 30 22 2.52 11.0 78.0 1.85 1.90 39
SRU1038-330Y 33.0 ± 30 22 2.52 10.0 86.0 1.80 1.80 35
SRU1038-470Y 47.0 ± 30 22 2.52 8.0 121.0 1.65 1.60 29
SRU1038-680Y 68.0 ± 30 24 2.52 7.0 166.0 1.10 1.30 26
SRU1038-101Y 100.0 ± 30 24 0.796 6.0 220.0 1.30 1.10 20
SRU1038-151Y 150.0 ± 30 20 0.796 5.0 358.0 0.90 0.80 16
SRU1038-221Y 220.0 ± 30 22 0.796 4.0 565.0 0.65 0.65 14
SRU1038-331Y 330.0 ± 30 20 0.796 3.0 773.0 0.55 0.52 11
Core ....................Ferrite DR and RI core
Wire ............................Enameled copper
Terminal ....................................Ag/Ni/Sn
Packaging .................... 800 pcs. per reel
Materials
*RoHS COMPLIANT
10
0
Product Dimensions
DIMENSIONS:
MM
(INCHES)
7.4
(.291)
TYP.
TYP.
10.0 ± 0.3
(.394 ± .012)
3.4
(.134)
TYP.
3.2
(.126)
TYP.
3.4
(.134)
3.8 ± 0.3
(.150 ± .012)
10.0 ± 0.3
(.394 ± .012)
Recommended Layout
Inductor Connection
Electrical Schematic
LCR METER
Δ I (peak-to-peak ripple current, A),
determine core loss from Core Loss vs. Flux Density plot on page 2.
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on
the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf