SRU8028

T
PL
IA
N
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CO
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Features
Applications
■ Available in E6 series
■ Input/output of DC/DC converters
■ Unit height of 2.8 mm
■ Power supplies for:
•
•
•
•
■ Current up to 7 A
■ RoHS compliant*
220
Portable communication equipment
Camcorders
LCD TVs
Car radios
SRU8028 Series - Shielded SMD Power Inductors
Electrical Specifications
General Specifications
Inductance
100 KHz
Bourns
Part No.
(µH)
Tol.
%
Q
Ref.
Test
Freq.
(MHz)
SRU8028-1R0Y
1.0
± 30
12
7.96
66.0
10.1
7.00
5.50
389
SRU8028-2R5Y
2.5
± 30
15
7.96
65.0
13.6
4.50
4.20
251
SRU8028-3R3Y
3.3
± 30
12
7.96
60.0
17.5
3.60
3.50
222
SRU8028-4R7Y
4.7
± 30
15
7.96
50.0
20.0
3.70
3.20
198
SRU8028-6R8Y
6.8
± 30
13
7.96
40.0
34.0
2.80
2.50
164
SRU8028-8R2Y
8.2
± 30
17
7.96
37.0
54.0
2.60
2.30
143
SRU8028-100Y
10.0
± 30
22
2.52
35.0
45.0
2.60
2.20
130
SRU8028-120Y
12.0
± 30
21
2.52
30.0
76.0
2.20
2.00
121
SRU8028-150Y
15.0
± 30
20
2.52
25.0
66.0
2.00
1.70
108
SRU8028-220Y
22.0
± 30
22
2.52
20.0
106
1.60
1.50
88
SRU8028-330Y
33.0
±30
20
2.52
15.0
147
1.30
1.10
74
SRU8028-470Y
47.0
±30
14
2.52
12.0
177
1.20
1.00
62
SRU8028-680Y
68.0
±30
23
2.52
9.0
317
0.85
0.80
50
SRU8028-101Y
100.0
±30
35
0.796
8.0
390
0.75
0.70
41
SRF
Typ.
(MHz)
RDC
(mΩ)
Irms
Max.
(A)
Isat
Typ.
(A)
**KFactor
Test Voltage .......................................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.
Rated Current
...................Ind. drop 35 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Materials
Core ....................Ferrite DR and RI core
Wire ............................Enameled copper
Terminal ....................................Ag/Ni/Sn
Packaging .................. 1500 pcs. per reel
Product Dimensions
**K-Factor: To calculate core flux 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.
8.0 ± 0.3
(.315 ± .012)
Core Loss vs. Flux Density
10000
8.0 ± 0.3
(.315 ± .012)
1000
Core Loss (mW)
100
2.8 ± 0.3
(.110 ± .012)
10
1 MHz
800 KHz
500 KHz
400 KHz
300 KHz
200 KHz
100 KHz
1
0.1
0.01
6.0
TYP.
(.236)
2.5
(.098)
TYP.
0.001
2.8
(.110)
TYP.
0.0001
10
100
1000
2.5
TYP.
(.098)
Flux Density Bp-p (gauss)
Electrical Schematic
Inductor Connection
Recommended Layout
2.0
(.079)
REF.
* 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.
5.8
(.228)
REF.
LCR METER
DIMENSIONS:
MM
(INCHES)
2.0
(.079)
REF.
3.2
(.126)
REF.
SRF0504
Filter SMD Power Inductors
SRU8028Series
Series- -Line
Shielded
Packaging Specifications
330
DIA.
(12.99)
2.0 ± 0.5
(.079 ± .020)
22.4
(.882)
COVER
TAPE
13.0 ± 0.5
(.512 ± .020)
DIA.
21.0 ± 0.8
(.827 ± .031)
EMBOSSED
CAVITY
50.0
(1.969)
13.0 ± 0.5
DIA.
(.512 ± .020)
EMBOSSED
CARRIER
12.0
(.472)
18
(.709)
4
(.157)
END
START
12
(.472)
NO COMPONENT
160
(6.299)
NO COMPONENT
COMPONENTS
400
(15.748)
USER DIRECTION OF FEED
QTY: 1500 PCS. PER REEL
DIMENSIONS:
MM
(INCHES)
Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
EMEA: Tel: +36 88 520 390 • Fax: +36 88 520 211
The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
REV. 11/13
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.