REF.
REF.
REF.
REF.
REF.
4.90
(.193)
2.40
(.094)
REF.
2.40
(.094)
1.10
(.043)
1.10
(.043)
REF.
1.10
(.043)
REF.
1.10
(.043)
4.90
(.193)
6.50 ± 0.30
(.256 ± .012)
6.20 ± 0.30
(.244 ± .012)
1.10 ± 0.15
(.043 ± .006)
4.90
(.193)
TYP.
100
TYP.
2.15
(.085)
TYP.
2.20
(.087)
TYP.
2.15
(.085)
Features
■ Maximum height of 1.25 mm
■ Current up to 2.6 A
■ RoHS compliant*
Applications
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRU6011 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 Temp. ............-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
Temp. Rise.......40 °C max. at rated Irms
Packaging .................. 1000 pcs. per reel
Materials
Product Dimensions
Recommended Layout
DIMENSIONS:
MM
(INCHES)
* 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.
Electrical Schematic
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.
(%)
SRU6011-1R4Y 1.4 ±30 8 7.96 140 40 2.60 1.80 707
SRU6011-2R7Y 2.7 ±30 8 7.96 100 62 2.20 1.45 490
SRU6011-4R7Y 4.7 ±30 8 7.96 70 86 1.80 1.10 374
SRU6011-6R8Y 6.8 ±30 7 7.96 55 136 1.40 0.90 303
SRU6011-100Y 10 ±30 12 2.52 45 220 1.10 0.72 236
SRU6011-150Y 15 ±30 10 2.52 32 320 0.95 0.62 193
SRU6011-220Y 22 ±30 10 2.52 26 390 0.80 0.48 163
SRU6011-330Y 33 ±30 10 2.52 22 560 0.68 0.38
141
SRU6011-470Y 47 ±30 10 2.52 20 850 0.55 0.32
112
SRU6011-680Y 68 ±30 12 2.52 18 1200 0.46 0.28
92
*RoHS COMPLIANT
**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.
Flux Density Bp-p (gauss)
100
1000
10
100 1000
1 MHz
500 KHz
300 KHz
200 KHz
100 KHz
50 KHz
10000
1
0.1
0.01
Core Loss (mW)
Core Loss vs. Flux Density
