LCR METER
1.8 ± 0.2
(.071 ± .008)
5.2 ± 0.2
(.205 ± .008)
3.9
(.154)
TYP.
TYP.
1.7
(.067)
TYP.
1.8
(.071)
TYP.
1.7
(.067)
3.7
(.146)
1.1
(.043)
1.1
(.043)
2.0
(.079)
REF.
REF.
REF.
3.7
(.146)
1.1
(.043)
1.1
(.043)
REF.
REF.
REF.
REF.
2.0
(.079)
REF.
5.2 ± 0.2
(.205 ± .008)
1.8 ± 0.2
(.071 ± .008)
5.2 ± 0.2
(.205 ± .008)
3.9
(.154)
TYP.
TYP.
1.7
(.067)
TYP.
1.8
(.071)
TYP.
1.7
(.067)
3.7
(.146)
1.1
(.043)
2.0
(.079)
REF.
1.1
(.043)
REF.
REF.
3.7
(.146)
1.1
(.043)
1.1
(.043)
REF.
REF.
REF.
REF.
2.0
(.079)
REF.
0.78 ± 0.3
(.031 ± .012)
REF.
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)
Features
n Available in E6 series
n Unit height of 1.8 mm
n Current up to 2.8 A
n RoHS compliant*
Applications
n Input/output of DC/DC converters
n Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRU5018 Series - Shielded SMD Power Inductors
Electrical Specications
Product Dimensions
Recommended Layout
* 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.
Electrical Schematic
Inductor Connection
*RoHS COMPLIANT
*RoHS COMPLIANT
& AEC-Q200 QUALIFIED
*RoHS COMPLIANT
AEC APPROVED (Select Models)
LEAD FREE
*RoHS COMPLIANT
VERSIONS
AVAILABLE
LEAD FREE
VERSIONS ARE
RoHS COMPLIANT*
**K-Factor: To calculate core 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.
Core Loss vs. Flux Density
Test Voltage ....................................0.1 V
Reow 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.
General Specications
Core ....................Ferrite DR and RI core
Wire ............................Enameled copper
Terminal ....................................Ag/Ni/Sn
Rated Current . . Ind. drop 35 % typ. at Isat
Temperature Rise
.....................30 °C max. at rated Irms
Packaging .................. 1000 pcs. per reel
Materials
Bourns
Part Number
Inductance
@ 100 KHz
Q
Ref.
Test
Freq.
(MHz)
SRF
Min.
(MHz)
RDC
.(mW)
I rms
Max.
(A)
I sat
Typ.
(A)
**K-
Factor
L (µH)
Tol.
(%)
SRU5018-1R0Y 1.0 ±30 9 7.96 200 12.5 2.80 2.85 1105
SRU5018-1R5Y 1.5 ±30 9 7.96 160 15.5 2.50 2.40 904
SRU5018-2R2Y 2.2 ±30 10 7.96 130 20.5 2.30 2.10 765
SRU5018-3R5Y 3.5 ±30 9 7.96 90 32.0 2.10 1.70 585
SRU5018-4R7Y 4.7 ±30 8.5 7.96 80 36.0 2.00 1.55 524
SRU5018-6R8Y 6.8 ±30 7.5 7.96 60 50.0 1.45 1.20 432
SRU5018-100Y 10.0 ±30 12 2.52 50 65.0 1.25 1.05 368
SRU5018-150Y 15.0 ±30 12 2.52 40 100.0 0.95 0.80 301
SRU5018-220Y 22.0 ±30 12 2.52 28 160.0 0.68 0.65 243
SRU5018-330Y 33.0 ±30 13 2.52 23 220.0 0.66 0.56 195
SRU5018-470Y 47.0 ±30 13 2.52 18 330.0 0.54 0.45 163
SRU5018-680Y 68.0 ±30 12 2.52 16 480.0 0.37 0.36 140
SRU5018-101Y 100.0 ±30 15 0.796 15 620.0 0.32 0.31 117
5.2 ± 0.2
(.205 ± .008)
LCR METER
1.8 ± 0.2
(.071 ± .008)
5.2 ± 0.2
(.205 ± .008)
3.9
(.154)
TYP.
TYP.
1.7
(.067)
TYP.
1.8
(.071)
TYP.
1.7
(.067)
3.7
(.146)
1.1
(.043)
1.1
(.043)
2.0
(.079)
REF.
REF.
REF.
3.7
(.146)
1.1
(.043)
1.1
(.043)
REF.
REF.
REF.
REF.
2.0
(.079)
REF.
DIMENSIONS:
MM
(INCHES)
