PL
IA
N
T
Features
n
Available in E6 series
n
Low profile of 3 mm
n
High current
n
RoHS compliant*
Applications
n
Input/output of DC/DC converters
n
Power supplies for:
*R
oH
S
C
OM
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
LE
AD
F
RE
E
SRR1003 Series - Shielded Power Inductors
General Specifications
SRF
Min.
(MHz)
RDC
Max.
(Ω)
I rms
Max.
(A)
I sat
Typ.
(A)
Electrical Specifications
Q
Tol. % Ref.
Ro VE LEA
HS RS D
C ION FRE
OM S E
PL AR
IA E
NT
*
Bourns Part No.
Inductance
1 KHz
**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.
SRR1003-1R8M
SRR1003-2R2M
SRR1003-3R0M
SRR1003-3R9M
SRR1003-4R7M
SRR1003-7R5M
SRR1003-100M
SRR1003-120M
SRR1003-150M
SRR1003-180M
SRR1003-220M
SRR1003-270M
SRR1003-330M
SRR1003-390M
SRR1003-470M
SRR1003-560M
SRR1003-680M
SRR1003-820M
SRR1003-101M
SRR1003-121M
SRR1003-151M
SRR1003-181M
SRR1003-221M
SRR1003-271Y
SRR1003-331Y
SRR1003-391Y
SRR1003-471Y
1.8
2.2
3.0
3.9
4.7
7.5
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
µH
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 20
± 15
± 15
± 15
± 15
10
11
11
10
10
10
18
20
20
20
17
17
17
18
18
15
15
20
23
22
23
20
20
26
26
28
28
Test
Frequency
(MHz)
7.96M
7.96M
7.96M
7.96M
7.96M
7.96M
2.52M
2.52M
2.52M
2.52M
2.52M
2.52M
2.52M
2.52M
2.52M
2.52M
2.52M
2.52M
0.796M
0.796M
0.796M
0.796M
0.796M
0.796M
0.796M
0.796M
0.796M
100.0
90.0
70.0
60.0
50.0
32.0
28.0
26.0
25.0
14.0
22.0
19.0
17.0
16.0
14.0
13.0
11.0
11.0
10.0
9.0
8.0
7.0
6.0
4.1
3.6
2.6
2.1
0.038
0.045
0.062
0.07
0.078
0.10
0.145
0.185
0.20
0.27
0.30
0.40
0.45
0.56
0.65
0.68
0.80
1.20
1.40
1.52
1.80
2.20
2.20
3.10
3.60
4.60
5.10
3.00
2.76
2.20
2.10
1.90
1.44
1.24
1.10
1.02
0.90
0.85
0.75
0.70
0.65
0.60
0.52
0.48
0.42
0.40
0.35
0.32
0.28
0.26
0.22
0.20
0.18
0.16
8.00
6.70
5.60
5.20
4.60
3.90
3.30
3.00
2.60
2.50
2.10
1.90
1.70
1.60
1.40
1.30
1.20
1.00
0.95
0.85
0.80
0.75
0.65
0.60
0.55
0.46
0.45
**K-
Factor
145
122
106
94
84
69
55
51
48
45
41
35
32
29
27
25
22
21
19
17
15
14
12
11
10
9
8
Test Voltage .......................................1 V
Reflow Soldering .. 250 °C, 10 sec. max.
(In compliance with JEDEC,
J-STD-020C, Table 4-2)
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature
................................-40 °C to +125 °C
Resistance to Soldering Heat
.......................... 250 °C, 10 sec. max.
Materials
Core ....................... Ferrite DR & RI core
Wire ............................Enameled copper
Base .....................................LCP E4008
Terminal ....................................Cu/Ni/Sn
Rated Current
...............Ind. drop of 10 % typ. at Isat
Temperature Rise
.....................40 °C max. at rated Irms
Packaging .................. 1000 pcs. per reel
Product Dimensions
101
101
12.7 ± 0.1
12.7 ± 0.1
(.500 ± .004)
(.500 ± .004)
7.6
7.6 (.299)
(.299) TYP.
TYP.
10.3 ± 0.2
10.3 ± 0.2
(.406 ± .008)
(.406 ± .008)
3.0
3.0 (.118) MAX.
MAX.
(.118)
Core Loss vs. Flux Density
1000
100
Core Loss (mW)
10
1
1 MHz
800 KHz
500 KHz
400 KHz
300 KHz
200 KHz
100 KHz
2.5
2.5 (.098)
(.098) TYP.
TYP.
2.5
2.5 (.098)
(.098) TYP.
TYP.
0.10
Recommended Layout
7.3
7.3 (.287)
(.287)
2.8
2.8 (.110)
(.110)
0.01
10
100
1000
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.
3.0
3.0 (.118)
(.118)
DIMENSIONS:
MM
(INCHES)
SRR1003 Series - Shielded Power Inductors
Soldering Profile
300
Solder Profile for Models SDR1005, SDR1806, SDR2207, SRR0804,
SRR0805, SRR1003, SRR1005, SRR1806, and SRR6603 (02/06)
Schematic
(.0
<1> Max. of 10 seconds at 250 °C
<2> Max. of 30 seconds > 220 °C
250
250 °C
<1>
<2>
200
Temperature (°C)
150
120 - 150 seconds
100
Ramp-down
5 °C/second maximum
50
Ramp-up
4 °/second maximum
0
0
50
100
150
Time
(seconds)
200
250
300
Packaging Specifications
330
DIA.
(12.99)
2.0 ± 0.5
(.079 ± .020)
30.4
(1.20)
13.0 ± 0.5
(.512 ± .020)
DIA.
50.0
(1.969)
13.0 ± 0.5
DIA.
(.512 ± .020)
26
(1.02)
21.0 ± 0.8
(.827 ± .031)
END
4
(.157)
START
24
(.945)
16.0
(.63)
NO COMPONENT
3.1
(.122)
200
(7.874)
COMPONENTS
9600
(378.2)
NO COMPONENT
400
(15.748)
USER DIRECTION OF FEED
QTY: 1000 PCS. PER REEL
DIMENSIONS:
MM
(INCHES)
REV. 03/17
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.
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