Features
Applications
ꢀ Height of 3.0 mm max.
ꢀ Current rating up to 3.4 A
ꢀ RoHS compliant*
ꢀ Input/output of DC/DC converters
ꢀ Power supplies for:
• Portable communication equipment
• Camcorders
• LCD TVs
• Car radios
SRR6028 Series - Shielded SMD Power Inductors
General Specifications
Electrical Specifications
Test Voltage .....................0.1 V, 100 KHz
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.
Inductance 100 kHz
Test
Frequency
(MHz)
SRF
Typ.
(MHz)
DCR
Max.
(mΩ)
Q
Ref.
Bourns Part No.
Irms
(A)
Isat
(A)
(µH)
1.5
2.5
3.0
3.3
3.9
5.0
6.0
7.3
8.6
10
Tol. %
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
SRR6028-1R5Y
SRR6028-2R5Y
SRR6028-3R0Y
SRR6028-3R3Y
SRR6028-3R9Y
SRR6028-5R0Y
SRR6028-6R0Y
SRR6028-7R3Y
SRR6028-8R6Y
SRR6028-100Y
SRR6028-120Y
SRR6028-150Y
SRR6028-180Y
SRR6028-220Y
SRR6028-270Y
SRR6028-330Y
SRR6028-390Y
SRR6028-470Y
SRR6028-560Y
SRR6028-680Y
SRR6028-820Y
SRR6028-101Y
SRR6028-151Y
SRR6028-221Y
SRR6028-331Y
SRR6028-471Y
SRR6028-681Y
SRR6028-102Y
8
8.5
9
10
9
7.5
9
6
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
55
50
45
45
40
38
35
30
28
25
24
22
21
20
19
18
17
16
15
15
14
14
13
12
10
9
14
25
28
28
32
36
40
52
56
65
70
78
85
115
130
155
195
235
260
300
400
500
680
820
1400
2100
3100
4500
3.40
2.80
3.00
2.50
2.45
2.40
2.30
2.20
2.10
2.00
1.90
1.70
1.50
1.40
1.20
1.15
1.00
0.92
0.85
0.80
0.70
0.58
0.50
0.45
0.37
0.27
0.22
0.15
3.50
3.00
2.60
2.60
2.30
2.10
2.00
1.85
1.82
1.70
1.50
1.30
1.10
1.08
1.00
0.92
0.75
0.72
0.65
0.60
0.56
0.55
0.42
0.36
0.27
0.22
0.20
0.17
Materials
Core Material.................................Ferrite
Wire ............................Enameled Copper
Adhesive..............................Epoxy Resin
Terminal.....................................Ag/Ni/Sn
Rated Current .........Ind. drop of 35 % typ.
at Isat
8
11
10
9.5
9
8.5
9
10
10
10
10
11
9
8.5
12
15
11
11
13
32
Temperature Rise.............30 ˚C typ. at Irms
Packaging.....................500 pcs. per reel
12
15
18
22
27
33
39
47
Product Dimensions
6.80 0.ꢀ0
(.ꢀ68 .008ꢁ
2.52
6.80 0.ꢀ0
(.ꢀ68 .008ꢁ
100
56
68
82
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.252
100
150
220
330
470
680
1000
ꢀ.80 0.ꢀ0
(.110 .008ꢁ
ꢀ.30
(.091ꢁ
TYP.
8
7
TYP.
ꢀ.ꢀ0
(.087ꢁ
Soldering Profile
275
<1> Maximum of 10 seconds between
+255°C and +260°C
260°C peak
ꢀ.30
(.091ꢁ
TYP.
<1> 255°C
220°C
225
175
125
75
Recommended Layout
Ramp Down
6°C/second
maximum
190°C
60 - 90
seconds
7.30
(.ꢀ87ꢁ
ꢀ.60
(.10ꢀꢁ
REF.
REF.
150°C
120 - 150 seconds
ꢀ.70
(.106ꢁ
REF.
R
10 seconds minimum
REF.
ꢀ.10
(.083ꢁ
Ramp Up
3°C/second maximum
ꢀ.60
(.10ꢀꢁ
REF.
25
MM
(INCHES)
DIMENSIONS:
0
50
100
150
200
250
300
Rev. 02/22/05
Time (seconds)
*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.
Customers should verify actual device performance in their specific applications.