T
PL
IA
N
M
CO
*R
oH
S
Features
Applications
■ Available in E6 series
■ Input/output of DC/DC converters
■ Unit height of 2.8 mm
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
■ Current up to 7 A
■ RoHS compliant*
220
SRU8028 Series - Shielded SMD Power Inductors
Inductance
100 KHz
Bourns
Part No.
(μH)
Tol.
%
Q
Ref.
Test
Freq.
(MHz)
SRF
Typ.
(MHz)
RDC
(mΩ)
Irms
Max.
(A)
Isat
Typ.
(A)
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
**KFactor
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
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
Moisture Sensitivity Level ..................... 1
................. N/A
Materials
Core ....................Ferrite DR and RI core
Wire ............................Enameled copper
Terminal ....................................Ag/Ni/Sn
Packaging .................. 1500 pcs. per reel
Product Dimensions
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.
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
5.8
(.228)
REF.
2.0
(.079)
REF.
LCR METER
DIMENSIONS:
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
MM
(INCHES)
3.2
(.126)
REF.
SRF0504
Filter SMD Power Inductors
SRU8028Series
Series- -Line
Shielded
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)
REV. 03/18
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.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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