Features
Applications
■ Available in E6 series
■ Unit height of 8.5 mm
■ Current up to 7.5 A
■ RoHS compliant*
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRR1208 Series - Shielded High Power Inductors
Electrical Specifications
General Specifications
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
Inductance 1kHz
Test
Frequency
(MHz)
SRF
Min.
(MHz)
RDC
Max.
(Ω)
I rms
Max.
(A)
I sat
Typ.
(A)
Q
Ref.
Bourns Part No.
(µH)
2.5
Tol. %
20
20
20
20
20
20
20
20
20
15
15
15
15
15
15
15
15
15
15
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
SRR1208-2R5ML
SRR1208-4R5ML
SRR1208-6R5ML
SRR1208-100ML
SRR1208-120ML
SRR1208-150ML
SRR1208-180ML
SRR1208-220ML
SRR1208-270ML
SRR1208-330YL
SRR1208-390YL
SRR1208-470YL
SRR1208-560YL
SRR1208-680YL
SRR1208-820YL
SRR1208-101YL
SRR1208-121YL
SRR1208-151YL
SRR1208-181YL
SRR1208-221KL
SRR1208-271KL
SRR1208-331KL
SRR1208-391KL
SRR1208-471KL
SRR1208-561KL
SRR1208-681KL
SRR1208-821KL
SRR1208-102KL
SRR1208-122KL
SRR1208-152KL
SRR1208-182KL
SRR1208-222KL
SRR1208-272KL
SRR1208-332KL
SRR1208-392KL
SRR1208-472KL
SRR1208-562KL
SRR1208-682KL
SRR1208-822KL
SRR1208-103KL
20
24
25
20
19
21
21
23
23
23
25
24
23
20
18
15
15
14
14
13
13
13
14
14
14
13
12
11
10
10
20
20
20
20
20
20
18
18
16
24
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.252
0.252
0.252
0.252
0.252
0.252
0.252
0.252
0.252
0.252
0.252
0.252
0.0796
37
30
20
15
11
0.011
0.014
0.018
0.021
0.025
0.036
0.040
0.043
0.048
0.062
0.076
0.085
0.110
0.135
0.150
0.170
0.190
0.240
0.270
0.380
0.400
0.650
0.670
0.850
0.900
1.00
1.15
1.65
2.00
2.35
3.40
4.20
5.20
6.40
7.80
9.60
12.0
15.2
17.0
19.2
7.50
6.50
6.00
5.00
4.80
4.00
3.80
3.50
3.00
2.80
2.50
2.20
2.00
1.80
1.60
1.50
1.40
1.30
1.20
1.10
0.95
0.85
0.80
0.70
0.65
0.60
0.55
0.50
0.40
0.36
0.46
0.40
0.35
0.32
0.30
0.28
0.25
0.22
0.20
0.18
10.00
10.00
8.40
6.70
6.50
5.60
4.00
4.00
4.30
3.80
3.40
3.10
2.80
2.60
2.30
2.10
2.00
1.72
1.70
1.45
1.25
1.12
1.10
0.95
0.90
0.82
0.77
0.67
0.57
0.55
0.48
0.42
0.38
0.35
0.32
0.30
0.28
0.25
0.22
0.20
4.5
6.5
10
12
15
18
22
27
..................................260 °C for 5 sec.
Materials
Core.....................Ferrite DR and RI core
Wire.............................Enameled copper
Base ......................................LCP E4008
Terminal ....................................Cu/Ni/Sn
Rated Current
....................Ind. drop 10 % typ. at Isat
Temperature Rise
11
9.0
7.0
6.5
6.5
6.0
5.0
5.0
5.0
4.0
4.0
3.0
3.0
2.5
2.5
2.0
1.8
1.6
1.4
1.4
1.2
1.2
1.0
0.80
0.75
0.70
0.65
0.60
0.50
0.45
0.42
0.40
0.38
0.35
0.30
33
39
47
56
68
82
......................40 °C max. at rated Irms
Packaging.....................400 pcs. per reel
Product Dimensions
100
120
150
180
220
270
330
390
470
560
680
820
1000
1200
1500
1800
2200
2700
3300
3900
4700
5600
6800
8200
10000
12.7 ± 0.3
(.500 ± .012)
101
5.0 ± 0.2
(.197 ± .007)
12.7 ± 0.3
(.500 ± .012)
8.5
MAX.
(.335)
2.3 ± 0.2
(.091 ± .007)
DIMENSIONS:
MM
(INCHES)
Recommended Layout
Electrical Schematic
7.0
(.276)
6.0
(.236)
4.0
(.157)
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.