SMT Power Inductor
SI43 & SI43A Type
RoHS compliant.
mounting.
Low profile (2.5mm max. height) SMD type.
Unshielded.
Self-leads, suitable for high density
High energy storage and low DCR.
Provided with embossed carrier tape packing.
Idel 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.
Features
Electrical Characteristics:
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG)
25
100KHz, 0.1V
o
C,
252, SAN YING ROAD, KUEISAN INDUSTRIAL ZONE, TAOYUAN SHIEN, 333, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
http://www.deltaww.com
2
1. Tolerance of inductance: 15% for 1.0~8.2uH, 10% for 10~100uH.
2. Isat is the DC current which cause the inductance drop less than 10% of its nominal inductance without current.
3. Ir is the DC current which cause the surface temperature of the part increase less than 45
4. Operating temperature : -20
to 105
(including self-temperature rise).
o
C.
o
o
C
C
R22
0.22
5.8
5.60
5.60
R75
0.75
18.5
3.20
3.20
1R0
1.00
46
3.00
1.95
25.0
2.60
2.60
1R2
1.20
60
2.70
1.70
32.0
2.30
2.30
1R5
1.50
68
2.40
1.60
41.0
2.06
2.06
1R8
1.80
75
2.20
1.50
49.0
1.86
1.86
2R2
2.20
90
2.00
1.40
54.0
1.70
1.70
2R7
2.70
105
1.80
1.30
66.0
1.57
1.57
3R3
3.30
125
1.70
1.20
78.0
1.35
1.35
3R9
3.90
145
1.60
1.10
92.0
1.26
1.26
4R7
4.70
180
1.40
1.00
100.0
1.19
1.19
5R6
5.60
200
1.30
0.95
127.0
1.06
1.06
6R8
6.80
250
1.20
0.85
156.0
1.00
1.00
8R2 8.20
280
1.05
0.80
186.0
0.87
0.87
100
10.00
310
0.95
0.75
226.0
0.80
0.80
120
12.00
440
0.87
0.64
251.0
0.74
0.74
150
15.00
480
0.78
0.60
316.0
0.66
0.66
180
18.00
580
0.71
0.56
410.0
0.60
0.60
220
22.00
630
0.64
0.53
462.0
0.53
0.53
270
27.00
840
0.58
0.46
612.0
0.48
0.48
330
33.00
1175
0.52
0.39
821.0
0.44
0.44
390
39.00
1280
0.48
0.37
905.0
0.40
0.40
470
47.00
1493
0.44
0.35
1040.0
0.36
0.36
560
56.00
1670
0.40
0.31
1330.0
0.33
0.33
680
68.00
1907
0.36
0.30
1872.0
0.31
0.31
820
82.00
2568
0.33
0.24
2112.0
0.27
0.27
101
100.00
3030
0.30
0.23
2300.0
0.25
0.25
Mechanical Dimension:
A
C
0.6
4.0
3.6
B
D
UNIT:mm/inch
A = 3.5 0.2 / 0.138 0.008
B = 3.1 0.2 / 0.122 0.008
C = 2.5 / 0.098 Max.
D = 0.8 0.2 / 0.031 0.008
¡Ó
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RECOMMENDED PAD PATTERNS
0.01
0.10
1.00
10.00
CURRENT (A)
0.10
1.00
10.00
100.00
IN
D
U
C
T
A
N
C
E
(u
H
)
101
680
1R5
6R8
8R2
120
180
270
470
820
560
390
330
220
150
100
4R7
5R6
3R3
2R7
1R0
3R9
2R2
1R8
1R2
PART NO.
L
(uH)
1
SI43
SI43A
DCR
(m ) MAX
2
Isat
(Adc)
Ir
(Adc)
3
DCR
(m ) MAX
2
Isat
(Adc)
Ir
(Adc)
3
