SM1608 Series
1. Features of SM1608 series:
• 4.70 x 4.31mm foot Print , 2.00mm Max. height SMD Power Inductor for high
frequency application. Operating frequency up to 5MHz.
• Inductance range from 0.10uH to 22.0 uH. Custom values are welcomed.
• High saturation current characteristics by distributed gapped metal dust core.
• Ideal for portable device, Pad, E-reader and high density DC to DC Converter
• Operating Temperature Range: -55˚C to 125˚C .
• Tape & Reel Quantity: 2000 piece per 13 inches reel. RoHS and HF compliant.
2. Electrical Characteristics of SM1608 series:
Inductance 1
DCR
DCR
(uH)
(mΩ)
(mΩ)
± 20%
Typ. @25Ԩ
Max. @25Ԩ
SM1608-R10MHF
0.10
4.50
SM1608-R22MHF
0.22
7.30
ITG Part Number
5.00
Saturation
Current 2
Isat (A)
Typ. @25Ԩ
35.00
Heat Rating
Current 3
Irms (A)
Typ. @25Ԩ
11.00
8.00
24.00
13.00
SM1608-R33MHF
0.33
9.60
13.00
18.00
9.00
SM1608-R47MHF
0.47
16.00
18.00
11.50
5.60
SM1608-1R0MHF
1.00
33.00
37.00
8.50
3.75
SM1608-1R5MHF
1.50
35.00
43.00
6.00
4.00
SM1608-2R2MHF
2.20
52.00
58.00
5.00
3.00
SM1608-3R3MHF
3.30
76.00
87.00
4.00
2.50
SM1608-4R7MHF
4.70
118.00
132.00
2.80
2.40
SM1608-6R8MHF
6.80
162.00
178.00
2.10
2.00
SM1608-8R2MHF
8.20
188.00
207.00
2.00
1.80
SM1608-100MHF
10.00
256.00
282.00
1.80
1.60
SM1608-220MHF
22.00
460.00
550.00
1.00
0.80
3. Mechanical Dimensions of SM1608 series (unit: mm):
E
A
F
B
xxx
D
H
Top View
Bottom View
G
C
Part Marking:
xxx: Inductance value in uH(R:decimal point).
Pad
Dimension
SM1608
F
4.95 Typ.
G
1.16 Typ.
H
2.30 Typ.
Recommend PCB Layout
Front View
Type
A
B
C
SM1608
4.45 ± 0.25
4.06 ± 0.25
2.00 Max.
D
E
2.00 ± 0.30 0.76 ± 0.30
Notes:
1. Test conditions: 100KHz, 0.25V, 25˚C ambient temperature .
2. Isat: DC current that causes inductance to drop 20% (Typ.) from OCL (Ta=25Ԩ).
3. Irms: DC current for an approximate temperature rise of 40Ԩ without core loss. Derating is necessary for AC currents.
PCB pad layout,trace thickness and width,air-flow and proximity of other heat generating components will affect the temperature rise.
It is recommended the part temperature not exceed 125°C under worst case operating conditions as verified in the end application.
●
● New York 1 914 347 2474 ● Taipei 886 2 2698 8669 ● Kaohsiung 886 7 350 2275
Japan 81 568 85 2830 ● Shenzhen 86 755 8418 6263 ● Shanghai 86 21 5424 5141 ● Hong Kong 852 9688 9767
● sales@ITG-Electronics.com ● www.ITG-Electronics.com Revision D.0 : June 22, 2018
*Due to continuous product improvement, all specifications are subject to change without prior notice. Kindly contact an ITG field application engineer or a sales representative prior to purchase.
SM1608 Series
4. Inductance vs. Temperature Rise Characteristics of SM1608 Series
100
0.08
80
0.20
80
0.06
60
0.15
60
0.04
40
0.10
40
0.02
INDUCTANCE uH
0.25
20
0.05
20
INDUCTANCE uH
TEMP.Rise(℃)
INDUCTANCE uH
TEMP.Rise(℃)
0.00
0
5
10
15
20
25
30
0.00
0
35
0
5
10
DC CURRENT (A)
20
25
SM1608-R47MHF
SM1608-R33MHF
100
0.75
100
0.4
80
0.60
80
0.3
60
0.45
60
0.2
40
0.30
40
0.1
INDUCTANCE uH
0.5
TEMP.Rise(℃)
INDUCTANCE uH
15
DC CURRENT (A)
20
0.15
INDUCTANCE uH
TEMP.Rise(℃)
TEMP.Rise(℃)
0
0
2
4
6
8
10
12
14
20
INDUCTANCE uH
0.0
16
18
TEMP.Rise(℃)
0
TEMP.Rise(℃)
SM1608-R22MHF
100
TEMP.Rise(℃)
INDUCTANCE uH
SM1608-R10MHF
0.10
0.00
0
20
0
2
4
6
DC CURRENT (A)
8
10
12
14
DC CURRENT (A)
SM1608-1R5MHF
SM1608-1R0MHF
1.8
100
1.2
100
1.6
1.0
80
60
TEMP.Rise(℃)
60
0.6
40
1.0
0.8
40
0.6
0.4
0.4
20
0.2
INDUCTANCE uH
TEMP.Rise(℃)
0.0
0
0
1
2
3
4
5
6
7
8
9
20
INDUCTANCE uH
TEMP.Rise(℃)
0.2
0.0
0.0
0
10
1
2
3
4
5
6
7
DC CURRENT (A)
DC CURRENT (A)
SM1608-3R3MHF
SM1608-2R2MHF
3.0
100
2.5
100
4.2
3.6
80
80
40
1.0
60
2.4
1.8
40
1.2
20
INDUCTANCE (uH)
0.5
INDUCTANCE(uH)
60
1.5
20
0.6
TEMP.Rise(℃)
TEMP. Rise(˚C)
3.0
2.0
TEMP.Rise(℃)
INDUCTANCE (uH)
TEMP. Rise(˚C)
1.2
0.8
INDUCTANCE uH
80
1.4
INDUCTANCE uH
TEMP.Rise(℃)
0.0
0
0
1
2
3
DC CURRENT (A)
●
4
5
6
0.0
0.0
0
1
2
3
4
5
6
DC CURRENT (A)
● New York 1 914 347 2474 ● Taipei 886 2 2698 8669 ● Kaohsiung 886 7 350 2275
Japan 81 568 85 2830 ● Shenzhen 86 755 8418 6263 ● Shanghai 86 21 5424 5141 ● Hong Kong 852 9688 9767
● sales@ITG-Electronics.com ● www.ITG-Electronics.com Revision D.0 : June 22, 2018
*Due to continuous product improvement, all specifications are subject to change without prior notice. Kindly contact an ITG field application engineer or a sales representative prior to purchase.
SM1608 Series
4. Inductance vs. Temperature Rise Characteristics of SM1608 Series
SM1608-4R7MHF
SM1608-6R8MHF
5.0
100
8.0
80
7.0
80
60
60
2.0
40
INDUCTANCE uH
3.0
TEMP.Rise(℃)
INDUCTANCE uH
6.0
5.0
40
4.0
3.0
20
2.0
1.0
TEMP.Rise(℃)
4.0
20
INDUCTANCE uH
1.0
INDUCTANCE uH
TEMP.Rise(℃)
TEMP.Rise(℃)
0.0
0
0.0
0.8
1.6
2.4
3.2
4.0
0.0
4.8
0
0.0
0.4
0.8
DC CURRENT (A)
1.2
1.6
2.0
2.4
DC CURRENT (A)
SM1608-8R2MHF
SM1608-100MHF
10.0
100
8.0
80
6.0
60
100
12
10
80
60
6
40
TEMP.Rise(℃)
40
INDUCTANCE uH
4.0
TEMP.Rise(℃)
INDUCTANCE uH
8
4
2.0
20
20
2
INDUCTANCE uH
INDUCTANCE uH
TEMP.Rise(℃)
TEMP.Rise(℃)
0.0
0
0.0
0.4
0.8
1.2
1.6
2.0
2.4
0
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
DC CURRENT (A)
DC CURRENT (A)
INDUCTANCE uH
SM1608-220MHF
25
100
20
80
15
60
10
40
5
20
INDUCTANCE uH
TEMP.Rise(℃)
0
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
DC CURRENT(A)
●
● New York 1 914 347 2474 ● Taipei 886 2 2698 8669 ● Kaohsiung 886 7 350 2275
Japan 81 568 85 2830 ● Shenzhen 86 755 8418 6263 ● Shanghai 86 21 5424 5141 ● Hong Kong 852 9688 9767
● sales@ITG-Electronics.com ● www.ITG-Electronics.com Revision D.0 : June 22, 2018
*Due to continuous product improvement, all specifications are subject to change without prior notice. Kindly contact an ITG field application engineer or a sales representative prior to purchase.
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