DELTA SIQ74A-3R9

SMT Power Inductor
SIQ74 Type
Features
RoHS compliant.
Magnetically shielded.
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.
Mechanical Dimension:
RECOMMENDED PAD PATTERNS
C
B
D
E
2.2
1.6
UNIT:mm/inch
A = 7.3 0.2 / 0.287 0.008
B = 7.3 0.2 / 0.287 0.008
C = 4.5 / 0.177 Max.
D = 5.0 0.2 / 0.197 0.008
E = 2.0 0.2 / 0.079 0.008
F = 1.1 0.2 / 0.043 0.008
4.8
A
F
o
PART NO.
L1
(uH)
DCR
( ) MAX
for 1.2~6.8uH. 1KHz,1V for 10~1000uH.
Irated
(Adc)
SIQ74 - 1R2
1.2
0.0084
6.40
SIQ74B - 1R5
1.5
0.0160
7.00
SIQ74 - 2R2
2.2
0.0250
4.30
SIQ74B - 2R2
2.2
0.0190
6.50
SIQ74 - 3R3
3.3
0.0270
4.00
SIQ74B - 3R3
3.3
0.0290
5.20
SIQ74 - 3R9
3.9
0.0360
3.50
SIQ74A - 3R9
3.9
0.0360
3.50
SIQ74 - 4R7
4.7
0.0400
2.40
SIQ74A - 4R7
4.7
0.0400
3.50
SIQ74B - 5R0
5.0
0.0450
6.8
0.0620
3.60
6.8
0.0450
2.20
SIQ74B - 8R2
8.2
0.0810
3.30
SIQ74 - 100
10.0
0.0490
1.84
SIQ74B - 100
10.0
0.0660
2.50
SIQ74 - 120
12.0
0.0580
1.71
SIQ74 - 150
15.0
0.0810
1.47
SIQ74 - 180
18.0
0.0910
1.31
SIQ74 - 220
22.0
0.1100
1.23
SIQ74 - 270
27.0
0.1500
1.12
SIQ74 - 330
33.0
0.1700
0.96
SIQ74B - 330
33.0
0.2200
1.30
SIQ74 - 390
39.0
0.2300
0.91
SIQ74 - 470
47.0
0.2600
0.88
SIQ74 - 560
56.0
0.3500
0.75
SIQ74 - 680
68.0
0.3800
0.69
SIQ74 - 820
82.0
0.4300
0.61
SIQ74 - 101
100.0
0.6100
0.60
SIQ74 - 121
120.0
0.6600
0.52
SIQ74 - 151
150.0
0.8800
0.46
SIQ74 - 181
180.0
0.9800
0.42
220.0
1.1700
1000.00
4.00
SIQ74B - 6R8
SIQ74 - 6R8
SIQ74 - 221
2
INDUCTANCE (uH)
Electrical Characteristics: 25 C, 100KHz, 0.1V
100.00
10.00
0.00
102
821
681
561
471
391
331
271
221
181
151
121
101
820
680
560
470
390
330
270
220
180
150.
120
100
0.01
0.10
1.00
CURRENT (A)
0.36
SIQ74 - 271
270.0
1.6400
0.34
SIQ74 - 331
330.0
1.8600
0.32
SIQ74 - 391
390.0
2.8500
0.29
SIQ74 - 471
470.0
3.0100
0.26
SIQ74 - 561
560.0
3.6200
0.23
SIQ74 - 681
680.0
4.6300
0.22
SIQ74 - 821
820.0
5.2000
0.20
SIQ74 - 102
1000.0
6.0000
0.18
1. Tolerance of inductance : 20%.
2. Irated is the DC current which cause the inductance drop less than 25% of its nominal inductance without current
and the surface temperature of the part increase less than 45oC.
3. Operating temperature: -20oC to 105oC (including self-temperature rise).
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG) 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
22
10.00