SRU3028

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:
•
•
•
•
■ Current up to 0.72 A
100
■ RoHS compliant*
Portable communication equipment
Camcorders
LCD TVs
Car radios
SRU3028 Series - Shielded SMD Power Inductors
General Specifications
Electrical Specifications
Bourns
Part Number
Inductance
@ 100 KHz
Tol.
L (µH)
(%)
Q
Ref.
Test
Freq.
(MHz)
SRF
Typ.
(MHz)
RDC
(mΩ)
I rms
Max.
(A)
I sat
Typ.
(A)
**KFactor
SRU3028-100Y
10.0
±30
20
7.96
35
160
0.72
0.86
276
SRU3028-150Y
15.0
±30
18
2.52
25
230
0.66
0.72
241
SRU3028-220Y
22.0
±30
18
2.52
15
270
0.60
0.62
214
SRU3028-330Y
33.0
±30
20
2.52
10
450
0.47
0.48
180
SRU3028-470Y
47.0
±30
20
2.52
8
815
0.32
0.38
133
SRU3028-680Y
68.0
±30
20
2.52
7
1400
0.24
0.28
112
SRU3028-101Y
100.0
±30
20
0.796
5
2200
0.19
0.21
91
**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.
Core Loss vs. Flux Density
Test Voltage ....................................0.1 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.
Materials
Core ....................Ferrite DR and RI core
Wire ............ Enameled copper (Class F)
Terminal ....................................Ag/Ni/Sn
Rated Current
...................Ind. drop 35 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Packaging .................... 600 pcs. per reel
1000
Product Dimensions
3.5 ± 0.2
(.138 ± .008)
Core Loss (mW)
100
10
1 MHz
500 KHz
300 KHz
200 KHz
100 KHz
50 KHz
1
100
3.3 ± 0.2
(.130 ± .008)
0.1
2.8 ± 0.2
(.110 ± .008)
0.01
100
1000
10000
Flux Density Bp-p (gauss)
Inductor Connection
Recommended Layout
REF.
0.5
TYP.
(.020)
4.2
(.165)
1.1
(.043)
TYP.
ET
ER
1.8
REF.
(.071)
2.30
TYP.
(.091)
LC
R
M
TYP.
1.3
REF.
(.051)
1.2
(.047)
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.
0.5
(.020)
DIMENSIONS:
MM
(INCHES)
Electrical Schematic
SRU3028 Series
SMD Power Inductors
SRF0504
Series- -Shielded
Line Filter
Packaging Specifications
178
DIA.
(7.008)
2.0 ± 0.5
(.079 ± .020)
16.5
(.650)
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)
14
(.551)
4
(.157)
END
100
100
START
100
8
(.315)
NO COMPONENT
160
(6.299)
NO COMPONENT
COMPONENTS
400
(15.748)
USER DIRECTION OF FEED
QTY: 600 PCS. PER REEL
DIMENSIONS:
MM
(INCHES)
REV. 06/15
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.