Delta Electronics SIQ74 User Manual
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:
C
Electrical Characteristics:
PART NO.
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 4.00
SIQ74B - 6R8 6.8 0.0620 3.60
SIQ74 - 6R8 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
SIQ74 - 221 220.0 1.1700 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
L
(uH)
B
D
E
A
F
o
25 C, 100KHz, 0.1V for 1.2~6.8uH. 1KHz,1V for 10~1000uH.
1
DCR
( ) MAX
Irated
(Adc)
2
RECOMMENDED PAD PATTERNS
1.6
4.8
2.2
UNIT:mm/inchUNIT: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
1000.00
100.00
INDUCTANCE (uH)
10.00
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
0.00 0.01 0.10 1.00 10.00
CURRENT (A)
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 45 C.
3. Operating temperature: -20 C to 105 C (including self-temperature rise).
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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
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