3.9µH SMD Power Inductors:

73 Products Found
We offer a wide range of semishielded, shielded, unshielded and wirewound SMD power inductors from multiple manufacturers.An SMD Inductor, or Surface Mount Device Inductor, has no wire leads on its ends. This type of inductor is mounted directly to the surface of a circuit board via a metal pad on each end of the device.An SMD inductor commonly comprises a small coil shaped much like a spring, made of an electrically conductive wire. Some SMD inductors have a core of some type at the centre of the coil. Depending on the material chosen to serve as a core, often ferrite based, and the size and density of the core itself, the operational properties of the coil can be altered to fit specific needs.How to choose a suitable deviceAs SMD power inductors are typically used for switching power supplies in portable applications like mobile phones, choosing a suitable device depends above all on its size. Circuit board space is at a premium, especially as ever more functionality, and an associated increase in current, is added to the phone.Other key criteria include the device’s inductance value at the power supply switching frequency, its coil DC resistance, the additional saturation current, the additional RMS current, the equivalent series impedance (ESR) and the Q factor. The choice of shielded or unshielded inductor type is also important, and depends on the application.Since chip inductor manufacturers rarely provide ESR and Q factor information, designers should ask them for it. The relationship between the inductance and the current given by the manufacturer is often limited to 25°C, so the relevant data within the desired operating temperature range should be obtained. The worst case is generally 85°C.
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1362126

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HK$5.510
50+
HK$4.740
100+
HK$4.150
250+
HK$3.920
500+
HK$3.690
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Min: 1 / Mult: 1
3.9µH
4.8A
Shielded
4A
-
SRU8043 Series
-
0.0146ohm
± 30%
-
8mm
8mm
4.3mm
1800404RL

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100+
HK$5.870
200+
HK$5.180
500+
HK$4.480
Min: 100 / Mult: 1
3.9µH
1.32A
Unshielded
2.5A
-
WE-LQ Series
-
0.14ohm
± 20%
-
4.5mm
3.2mm
2.6mm
2211446

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Each (Supplied on Cut Tape)
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1+
HK$12.580
10+
HK$12.170
50+
HK$10.690
200+
HK$9.790
400+
HK$8.470
More Pricing...
Min: 1 / Mult: 1
3.9µH
1.82A
Shielded
1.7A
-
WE-TPC Series
-
0.075ohm
± 30%
-
4.8mm
4.8mm
1.8mm
2211461

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1+
HK$10.120
10+
HK$10.030
50+
HK$9.380
100+
HK$9.110
200+
HK$8.830
More Pricing...
Min: 1 / Mult: 1
3.9µH
2A
Shielded
2.1A
-
WE-TPC Series
-
0.055ohm
± 30%
-
5.8mm
5.8mm
1.8mm
1800404

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1+
HK$6.990
10+
HK$6.890
50+
HK$6.380
100+
HK$5.870
200+
HK$5.180
More Pricing...
Min: 1 / Mult: 1
3.9µH
1.32A
Unshielded
2.5A
-
WE-LQ Series
-
0.14ohm
± 20%
-
4.5mm
3.2mm
2.6mm
2328715

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5+
HK$3.700
50+
HK$3.020
250+
HK$2.490
500+
HK$2.210
1000+
HK$1.930
More Pricing...
Min: 5 / Mult: 5
3.9µH
1.98A
Unshielded
2.7A
-
SDR0403 Series
-
0.076ohm
± 20%
-
4.5mm
4mm
3.2mm
2211446RL

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Re-Reel
Packaging Options
50+
HK$10.690
200+
HK$9.790
400+
HK$8.470
800+
HK$7.150
Min: 100 / Mult: 1
3.9µH
1.82A
Shielded
1.7A
-
WE-TPC Series
-
0.075ohm
± 30%
-
4.8mm
4.8mm
1.8mm
2373987

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Each (Supplied on Cut Tape)
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1+
HK$5.400
10+
HK$4.730
50+
HK$3.920
200+
HK$3.510
400+
HK$3.240
More Pricing...
Min: 1 / Mult: 1
3.9µH
5.2A
Unshielded
5.7A
-
SDE1006A Series
-
0.027ohm
± 20%
-
10mm
9mm
5.4mm
2328715RL

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50+
HK$3.020
250+
HK$2.490
500+
HK$2.210
1000+
HK$1.930
2000+
HK$1.820
Min: 100 / Mult: 1
3.9µH
1.98A
Unshielded
2.7A
-
SDR0403 Series
-
0.076ohm
± 20%
-
4.5mm
4mm
3.2mm
2373987RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
50+
HK$3.920
200+
HK$3.510
400+
HK$3.240
800+
HK$3.020
4000+
HK$2.890
Min: 100 / Mult: 1
3.9µH
5.2A
Unshielded
5.7A
-
SDE1006A Series
-
0.027ohm
± 20%
-
10mm
9mm
5.4mm
2211461RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$9.110
200+
HK$8.830
500+
HK$8.550
Min: 100 / Mult: 1
3.9µH
2A
Shielded
2.1A
-
WE-TPC Series
-
0.055ohm
± 30%
-
5.8mm
5.8mm
1.8mm
2775411RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$4.520
200+
HK$4.390
500+
HK$4.260
Min: 100 / Mult: 1
3.9µH
3.4A
Shielded
1.8A
-
SRR4828A Series
1919 [4848 Metric]
0.047ohm
± 30%
-
4.8mm
4.8mm
2.8mm
2901856

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HK$5.330
10+
HK$3.830
50+
HK$3.450
100+
HK$3.060
200+
HK$2.910
More Pricing...
Min: 1 / Mult: 1
3.9µH
2.8A
Shielded
1.7A
-
SRR4528A Series
-
0.037ohm
± 30%
-
5mm
5mm
2.8mm
2901856RL

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Each (Supplied on Cut Tape)
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Packaging Options
100+
HK$3.060
200+
HK$2.910
500+
HK$2.770
Min: 100 / Mult: 1
3.9µH
2.8A
Shielded
1.7A
-
SRR4528A Series
-
0.037ohm
± 30%
-
5mm
5mm
2.8mm
2775411

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Each (Supplied on Cut Tape)
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1+
HK$7.070
10+
HK$6.080
50+
HK$5.580
100+
HK$4.520
200+
HK$4.390
More Pricing...
Min: 1 / Mult: 1
3.9µH
3.4A
Shielded
1.8A
-
SRR4828A Series
1919 [4848 Metric]
0.047ohm
± 30%
-
4.8mm
4.8mm
2.8mm
3442845RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$12.060
Min: 100 / Mult: 1
3.9µH
7.05A
Shielded
16.1A
-
B82477D6 Series
-
0.018ohm
± 20%
-
12.5mm
12.5mm
10.5mm
3639663

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1+
HK$24.420
10+
HK$21.510
50+
HK$18.590
100+
HK$15.680
200+
HK$12.760
More Pricing...
Min: 1 / Mult: 1
3.9µH
8.6A
Shielded
15.5A
-
MSS1278H Series
-
0.0086ohm
± 20%
-
12mm
12mm
7.8mm
3442845

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Each (Supplied on Cut Tape)
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1+
HK$19.090
10+
HK$15.980
25+
HK$13.760
50+
HK$12.620
100+
HK$12.060
Min: 1 / Mult: 1
3.9µH
7.05A
Shielded
16.1A
-
B82477D6 Series
-
0.018ohm
± 20%
-
12.5mm
12.5mm
10.5mm
3639663RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$15.680
200+
HK$12.760
500+
HK$9.850
2500+
HK$9.250
5000+
HK$9.070
Min: 100 / Mult: 1
3.9µH
8.6A
Shielded
15.5A
-
MSS1278H Series
-
0.0086ohm
± 20%
-
12mm
12mm
7.8mm
3953351

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Each (Supplied on Cut Tape)
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1+
HK$23.600
10+
HK$21.540
50+
HK$20.140
100+
HK$18.500
200+
HK$16.900
More Pricing...
Min: 1 / Mult: 1
3.9µH
5A
Shielded
14.6A
-
WE-CHSA Series
-
0.0289ohm
± 20%
-
8.1mm
8.1mm
9mm
4065860

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Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
HK$29.100
10+
HK$28.040
50+
HK$25.900
100+
HK$23.680
200+
HK$22.040
More Pricing...
Min: 1 / Mult: 1
3.9µH
7.5A
Shielded
12A
-
WE-LHMI Series
-
0.0145ohm
± 20%
-
11mm
10mm
3.8mm
3958172

RoHS

Each
1+
HK$7.320
10+
HK$7.050
100+
HK$6.810
500+
HK$6.350
1000+
HK$6.230
More Pricing...
Min: 1 / Mult: 1
3.9µH
-
-
-
-
-
-
-
-
-
4.5mm
3.2mm
-
3953351RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$18.500
200+
HK$16.900
350+
HK$15.940
Min: 100 / Mult: 1
3.9µH
5A
Shielded
14.6A
-
WE-CHSA Series
-
0.0289ohm
± 20%
-
8.1mm
8.1mm
9mm
4572727

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Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
HK$3.620
50+
HK$3.140
100+
HK$2.330
250+
HK$2.070
500+
HK$1.800
More Pricing...
Min: 1 / Mult: 1
3.9µH
4.8A
Shielded
6.5A
-
IFSC3232DB-02 Series
-
0.022ohm
± 30%
-
8mm
8mm
4.2mm
4572688

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
HK$2.880
50+
HK$2.310
100+
HK$1.730
250+
HK$1.490
500+
HK$1.240
More Pricing...
Min: 1 / Mult: 1
3.9µH
3.7A
Shielded
4.2A
-
IFSC2020DZ-01 Series
-
0.035ohm
± 30%
-
5mm
5mm
4mm
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