SD38 Series
Low Profile, Shielded Inductors
Description
• 3.8mm x 3.8mm shielded drum cores available in two
heights: 1.2mm and 1.4mm
• Current range from 4.44 to 0.100 Amps
• Inductance range from 0.47 uH to 680 uH
• Ferrite shielded, low EMI
• RoHS compliant (-R option)
Applications
• Digital cameras, cellular phones, CD players, and PDAs
• PCMCIA cards
• GPS systems
Environmental Data
• Storage temperature range: -40°C to +125°C
• Operating ambient temperature range: -40°C to +85°C
(range is application specific). Temperature rise is
approximately 40°C at rated rms current
• Infrared reflow temperature: +240°C for 30 seconds
maximum
Packaging
• Supplied in tape and reel packaging,
4,150 parts per 13" reel
Part Number
Rated
Inductance
(µH)
0.47
1.0
OCL (1)
+/-15%
(µH)
0.405
0.845
1.125
1.445
2.205
3.125
Part
Irms (2)
Isat (3)
DCR (4)
(Ω)
Volt (5)
u-sec
Typ.
2.52
3.64
4.20
4.76
5.88
7.0
Marking
Amperes
Amperes
Designator
Typ.
SD3812-R47
SD3812-1R0
SD3812-1R2
SD3812-1R5
SD3812-2R2
SD3812-3R3
SD3812-4R7
SD3812-6R8
SD3812-8R2
SD3812-100
SD3812-150
SD3812-220
SD3812-330
SD3812-470
SD3812-680
SD3812-820
SD3812-101
SD3812-151
SD3812-221
SD3814-R47
SD3814-R82
SD3814-1R2
SD3814-1R5
SD3814-2R2
SD3814-3R3
SD3814-4R7
SD3814-6R8
SD3814-8R2
SD3814-100
SD3814-150
SD3814-220
SD3814-330
SD3814-470
SD3814-680
SD3814-820
SD3814-101
SD3814-151
A
B
C
D
E
F
G
H
I
2.53
2.00
1.71
1.58
1.32
1.10
0.87
0.80
0.690
0.662
0.539
0.499
0.399
0.327
0.269
0.259
0.217
0.178
0.160
2.81
2.18
1.85
1.76
1.43
1.31
1.06
0.87
0.753
0.713
0.574
0.519
0.418
0.346
0.285
0.270
0.228
0.191
3.89
2.69
2.33
2.06
1.67
1.40
1.13
0.95
0.854
0.778
0.636
0.538
0.432
0.361
0.299
0.276
0.248
0.202
0.167
4.44
3.08
2.67
2.35
1.90
1.60
1.29
1.03
0.930
0.851
0.702
0.580
0.471
0.388
0.325
0.296
0.268
0.219
0.030
0.048
0.066
0.078
0.111
0.159
0.256
0.299
0.406
0.441
0.665
0.776
1.212
1.809
2.666
2.885
4.099
6.130
7.585
0.020
0.033
0.046
0.051
0.077
0.093
0.141
0.207
0.279
0.311
0.481
0.589
0.908
1.322
1.951
2.174
3.048
4.359
1.2
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0
220.0
0.47
0.82
1.2
1.5
2.2
3.3
4.7
6.8
8.2
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100.0
150.0
4.805
6.845
8.405
8.7
10.4
11.5
12.6
15.4
18.2
22.7
27.2
32.8
36
39
48
59
2.16
3.12
3.60
4.08
5.04
6.0
10.125
15.125
21.125
32.805
47.045
68.445
80.645
99.405
149.645
218.405
0.360
0.752
1.001
1.286
1.962
2.781
4.276
6.768
8.228
J
K
L
M
N
O
P
Q
R
S
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
7.4
9.4
10.3
11.3
13.7
16.6
20.4
24.7
29.5
32
9.830
14.458
21.186
32.151
47.210
67.324
81.101
98.794
149.026
36
44
(1) Test Parameters: 100KHz, 0.100Vrms, 0.0Adc.
(4) DCR limits @ 20°C.
(2) RMS current for an approximate ∆T of 40°C without core loss. It is
recommended that the temperature of the part not exceed 125°C.
De-rating is necessary for AC currents.
(5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total losses for 40°C temperature rise.
De-rating of the Irms is required to prevent excessive temperature rise.
(3) Peak current for approximately 30% rolloff at 20°C.