IA
Features
■
Height of 2.0 mm
■
Current rating up to 2.7 A
■
RoHS compliant*
Applications
■
Input/output of DC/DC converters
■
Power supplies for:
•
Portable communication equipment
•
Camcorders
•
LCD TVs
•
Car radios
*R
oH
S
CO
M
PL
NT
SRR4018 Series - Shielded SMD Power Inductors
Electrical Specifications
Inductance 100 kHz
Bourns Part No.
µ
(µH)
Tol. %
Test
Frequency
(MHz)
SRF
Typ.
(MHz)
DCR
Max.
Ω
(mΩ)
Q
Ref.
Irms
(A)
Isat
(A)
SRR4018-1R0Y
SRR4018-1R8Y
SRR4018-2R2Y
SRR4018-2R7Y
SRR4018-3R3Y
SRR4018-3R9Y
SRR4018-4R7Y
SRR4018-5R6Y
SRR4018-6R8Y
SRR4018-8R2Y
SRR4018-100Y
SRR4018-120Y
SRR4018-150Y
SRR4018-180Y
SRR4018-220Y
SRR4018-270Y
SRR4018-330Y
SRR4018-390Y
SRR4018-470Y
SRR4018-560Y
SRR4018-680Y
SRR4018-820Y
SRR4018-101Y
SRR4018-121Y
SRR4018-151Y
SRR4018-181Y
1.0
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
±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
9
9
8
8
8
8
8
7
8
7
10
9
8
7
7
7
7
8
8
8
7
8
10
11
14
10
7.960
7.960
7.960
7.960
7.960
7.960
7.960
7.960
7.960
7.960
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
2.520
0.796
0.796
0.796
0.796
219
105
90
78
61
60
55
57
49
40
38
32
30
30
29
23
21
19
20
15
13
13
12
10
10
10
35
58
55
60
65
75
82
90
100
135
150
170
220
280
300
370
420
540
600
820
860
1200
1350
1950
2600
4000
2.70
2.35
2.10
2.03
1.95
1.82
1.72
1.64
1.50
1.40
1.30
1.15
1.03
0.92
0.88
0.77
0.73
0.64
0.62
0.52
0.50
0.43
0.40
0.33
0.28
0.18
2.60
2.20
2.10
1.95
1.80
1.65
1.50
1.25
1.15
1.10
1.00
0.90
0.82
0.75
0.65
0.60
0.50
0.48
0.45
0.40
0.38
0.32
0.30
0.28
0.26
0.25
General 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.
Materials
Core Material.................................Ferrite
Wire ............................Enameled Copper
Adhesive..............................Epoxy Resin
Terminal.....................................Ag/Ni/Sn
Rated Current .........Ind. drop of 35 % typ.
at Isat
Temperature Rise .............30 ˚C typ. at Irms
Packaging.....................800 pcs. per reel
Product Dimensions
4.80 ± 0.20
(.189 ± .008)
6R8
4.80 ± 0.20
(.189 ± .008)
1.80 ± 0.20
(.071 ± .008)
1.60
(.063)
TYP.
Inductance vs. Current
TYP.
1.60
(.063)
101
102
7
5
3
2
1.60
(.063)
TYP.
330
Inductance (µH)
Recommended Layout
100
4R7
101
7
5
3
2
5.30
REF.
(.209)
2.00
(.079)
REF.
R
1.80
(.071)
REF.
100
7
5
101
2
3
5
7 102
2
3
5
7 103
2
3
5
7
104
REF.
1.50
(.059)
2.00
(.079)
REF.
1R0
DIMENSIONS:
DC Current (mA)
MM
(INCHES)
*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.
Surface Mount Chip
-
Inductor Capability Matrix
Inductors
SRR4018 Series Shielded SMD Power
Soldering Profile
275
<1> Maximum of 10 seconds between
+255°C and +260°C
260°C peak
<1> 255°C
Electrical Schematic
225
220°C
190°C
60 - 90
seconds
Ramp Down
6°C/second
maximum
Temperature (°C)
175
150°C
125
120 - 150 seconds
10 seconds minimum
75
Ramp Up
3°C/second maximum
25
0
50
100
150
200
250
Rev. 02/22/05
300
LCR METER
Time (seconds)
Packaging Specifications
178.0
(7.00)
DIA.
2.0
±
0.5
(.079
±
.020)
16.5
(.650)
DIMENSIONS:
MM
(INCHES)
21.0
±
0.8
(.827
±
.032)
DIA.
13.0
(.511)
50.0 - 0
(1.969 - 0)
13.0
DIA.
(.511)
14.0 + 0
(.551 + 0)
END
8.0
(.315)
4.0
(.157)
START
6R8
6R8
6R8
6R8
NO COMPONENT
NO COMPONENT
COMPONENTS
200
(7.87)
400
(15.75)
USER DIRECTION OF FEED
QTY: 800 PCS. PER REEL
REV. 10/08
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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