SRU5028

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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:
•
•
•
•
■ Current up to 3.5 A
680
■ RoHS compliant*
Portable communication equipment
Camcorders
LCD TVs
Car radios
SRU5028 Series - Shielded SMD Power Inductors
Electrical Specifications
Bourns
Part Number
General Specifications
Inductance
@ 100 KHz
L (µH)
Tol. (%)
Q
Ref.
Test
Freq.
(MHz)
SRF
Min.
(MHz)
RDC
(mΩ)
I rms
Max.
(A)
I sat
Typ.
(A)
**KFactor
SRU5028-1R2Y
1.2
±30
10
7.96
200
16.8
3.50
3.40
453
SRU5028-2R2Y
2.2
±30
10
7.96
130
21.0
3.20
2.50
313
SRU5028-3R3Y
3.3
±30
10
7.96
90
24.0
2.80
2.10
272
SRU5028-4R7Y
4.7
±30
9
7.96
50
32.0
2.20
1.85
214
SRU5028-6R8Y
6.8
±30
10
7.96
55
42.0
2.00
1.55
177
SRU5028-100Y
10.0
±30
18
2.52
25
63.0
1.80
1.40
151
SRU5028-150Y
15.0
±30
18
2.52
23
108.0
1.10
1.00
123
SRU5028-220Y
22.0
±30
15
2.52
18
162.0
0.95
0.85
95
SRU5028-330Y
33.0
±30
15
2.52
16
203.0
0.80
0.68
87
SRU5028-470Y
47.0
±30
13
2.52
13
285.0
0.70
0.62
69
SRU5028-680Y
68.0
±30
13
2.52
10
450.0
0.56
0.46
59
SRU5028-101Y
100.0
±30
15
0.796
8
625.0
0.47
0.42
50
Test Voltage ....................................0.1 V
Reflow 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.
Materials
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 .................... 600 pcs. per reel
Product Dimensions
5.2 ± 0.2
(.205 ± .008)
**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.
5.2 ± 0.2
(.205 ± .008)
Core Loss vs. Flux Density
1000
2.8 ± 0.2
(.110 ± .008)
Core Loss (mW)
100
1.7
(.067)
TYP.
3.9
TYP.
(.154)
1 MHz
500 KHz
300 KHz
200 KHz
100 KHz
50 KHz
10
1.8
TYP.
(.071)
1
1.7
TYP.
(.067)
Recommended Layout
0.1
100
1000
10000
Flux Density Bp-p (gauss)
Electrical Schematic
Inductor Connection
1.1
(.043)
REF.
1.1
(.043)
REF.
1.1
(.043)
REF.
3.7
(.146)
REF.
3.7
(.146)
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.
2.0
(.079)
REF.
LCR METER
1.1
(.043)
REF.
REF.
DIMENSIONS:
2.0
(.079)
MM
(INCHES)
SRU5028 Series
SMD Power Inductors
SRF0504
Series- -Shielded
Line Filter
Packaging Specifications
178
DIA.
(7.008)
2.0 ± 0.5
(.079 ± .020)
21.0 ± 0.8
(.827 ± .031)
16.5
(.650)
13.0 ± 0.5
(.512 ± .020)
DIA.
50.0
(1.969)
13.0 ± 0.5
DIA.
(.512 ± .020)
12
(.472)
14
(.551)
4
(.157)
END
START
8
(.315)
NO COMPONENT
160
(6.299)
NO COMPONENT
COMPONENTS
400
(15.748)
USER DIRECTION OF FEED
DIMENSIONS:
QTY: 600 PCS. PER REEL
MM
(INCHES)
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.