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
SRR6028 Series - Shielded SMD Power Inductors
General Specifications
Electrical Characteristics
Test Voltage ................................... 0.1 V
Inductance
100 kHz
DCR
Max.
(mΩ)
Reflow Soldering...230 °C, 50 sec. max.
Operating Temp.............-40 °C to +125 °C
(Temperature rise included)
Storage Temperature.. -40 °C to +125 °C
Resistance to Soldering Heat
................................ 260 °C for 10 sec.
Moisture Sensitivity Level......................1
ESD Classification (HBM)..................N/A
Test
Frequency
(MHz)
SRF
Typ.
(MHz)
Bourns
Part Number
Q
Ref.
I rms
(A)
I sat
(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
7.96
7.96
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
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
7.96
28
10
9
7.96
28
7.96
32
Materials
7.5
9
7.96
36
Core ............................................. Ferrite
Wire ........................... Enameled copper
Adhesive...............................Epoxy resin
Terminal.................................... Ag/Ni/Sn
Rated Current
...................Ind. drop 35 % typ. at Isat
Temperature Rise................... 30 °C typ.
at rated Irms
7.96
40
6
7.96
52
8
2.52
56
11
10
9.5
9
2.52
65
12
2.52
70
15
2.52
78
18
2.52
85
Packaging.................... 500 pcs. per reel
22
8.5
9
2.52
115
130
155
195
235
260
300
400
500
680
820
1400
2100
3100
4500
27
2.52
Product Dimensions
33
10
10
10
10
11
9
2.52
6.80 0.20
(.268 .008ꢀ
39
2.52
47
2.52
56
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.796
0.252
6.80 0.20
68
(.268 .008ꢀ
100
82
100
150
220
330
470
680
1000
8.5
12
15
11
11
13
32
2.80 0.20
(.110 .008ꢀ
2.30
(.091ꢀ
TYP.
8
7
Soldering Profile
275
TYP.
2.20
(.087ꢀ
<1> Maximum of 10 seconds between
+255°C and +260°C
260°C peak
<1> 255°C
220°C
225
175
125
75
2.30
(.091ꢀ
TYP.
Ramp Down
6°C/second
maximum
190°C
60 - 90
seconds
Recommended Layout
150°C
7.30
2.60
(.102ꢀ
REF.
REF.
(.287ꢀ
120 - 150 seconds
10 seconds minimum
Ramp Up
3°C/second maximum
2.70
(.106ꢀ
REF.
R
REF.
25
2.10
0
50
100
150
200
250
300
(.083ꢀ
Rev. 02/22/05
Time (seconds)
2.60
MM
(INCHESꢀ
(.102ꢀ
REF.
DIMENSIONS:
*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. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov