SMT Power Inductor
SI54 Type
Features
RoHS compliant.
Low profile (3.5mm max. Height) SMD type.
Unshielded.
Self-leads, suitable for high density mounting.
High energy storage and low DCR.
Provided with embossed carrier tape packing.
Ideal for power source circuits, DC-DC converter, DC-AC inverters
inductor applications.
In addition to the standard versions shown here, customized inductors
are available to meet your exact requirements.
Mechanical Dimension:
C
B
RECOMMENDED PAD PA
TTERNS
4.0
5.2
D
1.0
UNIT:mm/inch
A = 4.5 0.15 / 0.177 0.006
B = 4.0 0.15 / 0.157 0.006
C = 3.2 0.3 / 0.126 0.012
D = 1.0 0.2 / 0.039 0.008
Electrical Characteristics:
PART NO.
SI54 - 1R0
SI54A - 1R0
SI54 - 1R5
SI54 - 1R8
SI54 - 2R2
SI54 - 2R7
SI54 - 3R3
SI54A - 3R3
SI54 - 3R9
SI54 - 4R7
SI54A - 4R7
SI54 - 5R6
SI54 - 6R8
SI54 - 8R2
SI54 - 100
SI54 - 120
SI54 - 150
SI54 - 180
SI54 - 220
SI54 - 270
SI54 - 330
SI54 - 390
SI54 - 470
SI54A - 470
SI54 - 560
SI54A - 560
SI54 - 680
3.3
3.9
4.7
0.3
5.6
6.8
8.2
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
0.3
56.0
0.3
68.0
0.0860
0.0930
0.1080
0.0108
0.1250
0.1310
0.1460
0.1820
0.2100
0.2350
0.3380
0.3780
0.5220
0.5400
0.5870
0.8440
0.8440
0.9370
0.9370
1.1170
2.90
1.60
1.50
2.50
1.40
1.30
1.20
1.10
0.97
0.85
0.74
0.68
0.62
0.56
0.52
0.44
0.77
0.42
0.75
0.37
INDUCTANCE (uH)
1. Tolerance of inductance : 15% for 1.0~8.2uH, 10% for 10~68uH.
2. Irated is the DC current which cause the inductance drop less than 10%(20% for A-3R3 & A-4R7) of its nominal
inductance without current and the surface temperature of the part increase less than 45
o
C.
3. Operating temperature: -20
o
C to 105
o
C (including self-temperature rise).
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG)
252, SAN YING ROAD, KUEISAN INDUSTRIAL ZONE, TAOYUAN SHIEN, 333, TAIWAN, R.O.C.
A
25
o
C, 1KHz, 1V
DCR
( ) MAX
0.0480
0.0200
0.0560
0.0630
0.0710
0.0780
0.0860
L
1
(uH)
1.0
1.0
1.5
1.8
2.2
2.7
3.3
Irated
2
(Adc)
2.70
5.60
2.60
2.00
1.90
1.80
1.70
100.00
680
560
470
390
330
270
220
180
150
120
100
8R2
6R8
5R6
4R7
3R9
3R3
2R7
2R2
1R8
1R5
1R0
10.00
1.00
0.10
0.00
0.01
0.10
CURRENT (A)
1.00
10.00
TEL: 886-3-3591968; FAX: 886-3-3591991
http://www.deltaww.com
4
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