Core Loss vs. Flux Density
10.0 ± 0.30
(.394 ± .012)
7.90
(.311)
TYP.
10.0 ± 0.30
(.394 ± .012)
6.50 ± 0.30
(.256 ± .012)
4R7
TYP.
3.30
(.130)
TYP.
3.40
(.134)
TYP.
3.30
(.130)
Features
■ Maximum height of 6.7 mm
■ Current up to 8 A
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRU1063 Series - Shielded SMD Power Inductors
Test Voltage ......................................0.1 V
Refl ow Soldering .... 230 °C, 50 sec. max.
Operating Temp. .......... -40 °C to +125 °C
(Temperature rise included)
Storage Temperature .. -40 °C to +125 °C
Resistance to Soldering Heat
...............................+260 °C for 10 sec.
Electrical Specifi cations General Specifi cations
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 ..................... 500 pcs. per reel
Materials
Product Dimensions
REF.
REF.
REF.
REF.
7.20
(.283)
3.80
(.150)
REF.
3.80
(.150)
1.80
(.071)
REF.
1.80
(.071)
REF.
1.80
(.071)
REF.
1.80
(.071)
7.20
(.283)
Recommended Layout
DIMENSIONS:
MM
(INCHES)
*RoHS COMPLIANT
* RoHS Directive 2002/95/EC Jan. 27, 2003 including
annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations 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
specifi c applications.
Bourns
Part Number
Inductance
@ 100 KHz
Q
Ref.
Test
Freq.
(MHz)
SRF
Typ.
(MHz)
RDC
Max.
(mΩ)
I rms
Max.
(A)
I sat
Typ.
(A)
**K-
Factor
L (µH)
Tol.
(%)
SRU1063-1R6Y 1.6 ±30 13 7.96 65 9 8.00 10.00
133
SRU1063-2R2Y 2.2 ±30 10 7.96 65 11 7.50 8.50
95
SRU1063-4R7Y 4.7 ±30 11 7.96 30 14 5.50 5.70
68
SRU1063-100Y 10 ±30 14 2.52 18 38 3.80 4.00
49
SRU1063-150Y 15 ±30 12 2.52 14 42 3.20 3.40
41
SRU1063-220Y 22 ±30 15 2.52 10 60 3.00 3.20 33
SRU1063-330Y 33 ±30 12 2.52 8 105 2.20 2.40 26
SRU1063-470Y 47 ±30 10 2.52 6 150 1.40 1.60 22
SRU1063-680Y 68 ±30 8 2.52 5 210 1.20 1.35 20
SRU1063-101Y 100 ±30 12 2.52 4 320 1.10 1.20 15
**K-Factor: To calculate core fl ux 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.
Electrical Schematic
Flux Density Bp-p (gauss)
100
1000
10000
10
100 1000
1 MHz
500 KHz
300 KHz
200 KHz
100 KHz
50 KHz
10000
1
0.1
Core Loss (mW)
