SRU1048

T
PL
IA
N
M
CO
*R
oH
S
Features
Applications
■ Available in E6 series
■ Input/output of DC/DC converters
■ Unit height of 4.8 mm
■ Power supplies for:
•
•
•
•
■ Current up to 7.8 A
■ RoHS compliant*
330
Portable communication equipment
Camcorders
LCD TVs
Car radios
SRU1048 Series - Shielded SMD Power Inductors
Electrical Specifications
Bourns
Part Number
Inductance
@ 100 KHz
Tol.
L (µH)
(%)
General Specifications
Q
(Ref.)
Test
Freq.
(MHz)
SRF
Typ.
(MHz)
RDC
(mΩ)
I rms
Max.
(A)
I sat
Typ.
(A)
**KFactor
SRU1048-R80Y
0.8
±30
8
7.96
100.0
3.6
7.80
8.50
266
SRU1048-1R5Y
1.5
±30
14
7.96
70.0
4.3
7.00
7.20
207
SRU1048-2R2Y
2.2
±30
14
7.96
55.0
5.3
6.50
6.30
169
SRU1048-3R0Y
3.0
±30
14
7.96
40.0
7.2
6.20
6.00
143
SRU1048-4R7Y
4.7
±30
12
7.96
30.0
9.5
5.50
4.75
124
SRU1048-6R8Y
6.8
±30
10
7.96
20.0
13.6
4.80
4.10
98
SRU1048-8R2Y
8.2
±30
8
7.96
18.0
15.0
4.60
3.80
89
SRU1048-100Y
10.0
±30
26
7.96
16.0
18.5
4.50
3.70
89
SRU1048-120Y
12.0
±30
26
2.52
15.0
25.0
4.00
3.30
81
SRU1048-150Y
SRU1048-220Y
SRU1048-330Y
SRU1048-470Y
SRU1048-560Y
SRU1048-680Y
SRU1048-820Y
SRU1048-101Y
SRU1048-151Y
SRU1048-221Y
SRU1048-331Y
SRU1048-561Y
15.0
22.0
33.0
47.0
56.0
68.0
82.0
100.0
150.0
220.0
330.0
560.0
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
±30
30
22
24
26
26
24
24
26
24
20
18
24
2.52
2.52
2.52
2.52
2.52
2.52
2.52
0.796
0.796
0.796
0.796
0.796
14.0
12.0
10.0
8.0
7.0
6.0
5.5
5.0
4.5
4.0
3.0
1.9
29.0
42.0
63.0
94.0
110.0
127.0
149.0
160.0
235.0
350.0
490.0
890.0
3.20
2.60
2.10
1.70
1.60
1.40
1.30
1.20
1.00
0.80
0.65
0.47
2.70
2.00
1.70
1.50
1.40
1.25
1.10
1.00
0.80
0.70
0.52
0.37
69
56
48
41
34
33
30
26
21
17
15
12
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.
Materials
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 .................... 600 pcs. per reel
Product Dimensions
10.0 ± 0.3
(.394 ± .012)
10.0 ± 0.3
(.394 ± .012)
**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.
4.8 ± 0.3
(.189 ± .012)
Core Loss vs. Flux Density
10000
7.4
TYP.
(.291)
Core Loss (mW)
1000
3.4
(.134)
TYP.
100
1 MHz
500 KHz
300 KHz
200 KHz
100 KHz
50 KHz
10
3.2
(.126)
TYP.
3.4
TYP.
(.134)
Recommended Layout
1
0.1
100
1000
10000
1.8
(.071)
REF.
7.2
(.283)
REF.
1.8
(.071)
REF.
Flux Density Bp-p (gauss)
* 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.
DIMENSIONS:
MM
(INCHES)
3.6
(.142)
REF.
SRU1048 Series
SMD Power Inductors
SRF0504
Series- -Shielded
Line Filter
Electrical Schematic
Inductor Connection
LCR METER
Packaging Specifications
330
DIA.
(12.99)
2.0 ± 0.5
(.079 ± .020)
21.0 ± 0.8
(.827 ± .031)
30.4
(1.20)
13.0 ± 0.5
(.512 ± .020)
DIA.
50.0
(1.969)
13.0 ± 0.5
DIA.
(.512 ± .020)
24
(.945)
26
(1.02)
4
(.157)
END
START
16
(.63)
NO COMPONENT
160
(6.299)
NO COMPONENT
COMPONENTS
400
(15.748)
USER DIRECTION OF FEED
DIMENSIONS:
QTY: 600 PCS. PER REEL
MM
(INCHES)
REV. 08/14
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.