SMD Wire Wound Ferrite Chip Inductors – SQC Series
SQC Series
The SQC Series is a type of miniature wire-wound chip inductor
designed on a special ferrite core. They are excellent for use in DC
power supply circuits.
Features
RoHS compliant
Low DC resistance, high current capacity, and high impedance
characteristics
Excellent solder heat resistance
Both flow and reflow soldering methods can be employed
Available in 4 sizes
Applications
Personal computers
Disk drives and computer peripherals
Pagers, cordless phone
DC power supply circuit
Product Identification
Packaging: T：Tape and Reel
Packaging: T：Tape and Reel
Shape and Dimensions
SQC321618 & SQC322520 & SQC322520LT
SQC322517 & SQC322517HP
SQC453226
Dimensions in mm
TYPE
SQC321618
SQC322517
SQC322517HP
SQC322520
SQC322520LT
SQC453226
A
3.2 ± 0.3
3.2 ± 0.3
3.2 ± 0.3
3.2 ± 0.3
3.2 ± 0.3
4.5 ± 0.3
B
1.6 ± 0.2
2.5 ± 0.2
2.5 ± 0.2
2.5 ± 0.2
2.5 ± 0.2
3.6 ± 0.2
C
1.8 ± 0.2
1.55± 0.15
1.55± 0.15
2.0 ± 0.2
2.0 ± 0.2
2.6 ± 0.2
D
-
2.5 ± 0.2
2.5 ± 0.2
-
-
3.2 ± 0.2
E
-
2.5 ± 0.2
2.5 ± 0.2
-
-
3.2 ± 0.2
F
-
0.9 ± 0.3
0.9 ± 0.3
-
-
3.2 ± 0.2
G
-
1.3 ± 0.2
1.3 ± 0.2
-
-
-
SMD Wire Wound Ferrite Chip Inductors – SQC Series
Recommended Pattern
SQC321618
SQC322517 & SQC322517HP
SQC322520 & SQC322520LT & SQC453226
Dimensions in mm
TYPE
SQC321618
SQC322517
SQC322517HP
SQC322520
SQC322520LT
SQC453226
A
1.5
5.5
5.5
5.5
5.5
7.5
B
4.5
1.0
1.0
1.0
1.0
1.5
C
1.75
1.3
1.3
1.3
1.3
1.5
D
1.0
1.0
1.0
1.0
1.0
1.5
E
-
2.0
2.0
2.0
2.0
3.0
Electrical Characteristics
Part Number
Inductance
(uH)
0.12
0.22
0.47
1.0
2.2
2.7
4.7
6.8
10
22
47
82
100
Tolerance
(±%)
20
20
20
20
20 / 10
20 / 10
20 / 10
20 / 10
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
Test
Frequency
(MHz)
1
1
1
1
1
1
1
1
1
1
1
1
1
SRF
(MHz) Min
250
250
180
100
50
45
31
25
20
14
10
8
7
RDC
(Ω) Max
0.112
0.140
0.210
0.364
0.533
0.580
0.845
1.430
1.690
3.900
10.40
13.00
15.60
Rated current
(mA)
970
850
700
510
430
340
340
280
230
160
100
90
80
SQC321618T-R12□-N
SQC321618T-R22□-N
SQC321618T-R47□-N
SQC321618T-1R0□-N
SQC321618T-2R2□-N
SQC321618T-2R7□-N
SQC321618T-4R7□-N
SQC321618T-6R8□-N
SQC321618T-100□-N
SQC321618T-220□-N
SQC321618T-470□-N
SQC321618T-820□-N
SQC321618T-101□-N
Note: When ordering, please specify tolerance code. Tolerance : J=±5% , K=±10% , M=±20%
Operating temperature range－25℃½125℃(Including self - temperature rise)
Rated Current: Self temperature rise shall be limited to 35℃ Max. Inductance drop 10% typ.
Measure Equipment：
L：Agilent HP4192A
SRF：Agilent HP4291A
RDC：CHEN HWA 502
SMD Wire Wound Ferrite Chip Inductors – SQC Series
Electrical Characteristics
Part Number
Inductance
(uH)
2.2
3.3
6.8
10
22
100
Tolerance
(±%)
20
20
20
20 / 10
20 / 10
20 / 10
Test
Frequency
(MHz)
1
1
1
1
1
1
SRF
(MHz) Min
64
50
32
26
19
10
RDC
(Ω±30%)
0.097
0.12
0.25
0.30
0.71
3.50
Rated current
(mA)
790
710
540
350
250
100
SQC322517T-2R2□-N
SQC322517T-3R3□-N
SQC322517T-6R8□-N
SQC322517T-100□-N
SQC322517T-220□-N
SQC322517T-101□-N
Note: When ordering, please specify tolerance code. Tolerance : K=±10% , M=±20%
Operating temperature range－25℃½125℃(Including self - temperature rise)
Rated Current for Inductance drop 10% from its value with current
Measure Equipment：
L：Agilent HP4192A
SRF：Agilent HP4287A
RDC：CHEN HWA 502
Electrical Characteristics
Part Number
Inductance
(uH)
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10
15
22
33
47
Tolerance
(±%)
30
30
30
30 / 20
30 / 20
30 / 20
30 / 20
30 / 20
30 / 20
30 / 20
30 / 20
30 / 20
Test
Frequency
(MHz)
1
1
1
1
1
1
1
1
1
1
1
1
SRF
(MHz) Min
100
100
70
70
50
40
40
30
25
20
14
11
RDC
(Ω±20%)
0.030
0.045
0.057
0.076
0.120
0.180
0.240
0.380
0.700
0.810
1.050
1.480
Rated current
(mA)
3400
2300
1750
1550
1250
1000
850
750
550
500
360
280
Irms
(mA)
2550
2050
1750
1600
1200
1000
850
700
500
450
320
240
SQC322517HP-R47□-N
SQC322517HP-1R0□-N
SQC322517HP-1R5□-N
SQC322517HP-2R2□-N
SQC322517HP-3R3□-N
SQC322517HP-4R7□-N
SQC322517HP-6R8□-N
SQC322517HP-100□-N
SQC322517HP-150□-N
SQC322517HP-220□-N
SQC322517HP-330□-N
SQC322517HP-470□-N
Note: When ordering, please specify tolerance code. Tolerance : J=±5% , K=±10% , M=±20%
Operating temperature range－25℃½125℃(Including self - temperature rise)
Rated Current：Self temperature rise shall be limited to 35℃ Max Inductance drop 10% typ.
Measure Equipment：
L：Agilent HP4192A
SRF：Agilent HP4291A
RDC：CHEN HWA 502
Rate Current：HP4284A+HP42841A
SMD Wire Wound Ferrite Chip Inductors - SQC Series
Electrical Characteristics
Part Number
SQC322520T-R47□-N
SQC322520T-1R0□-N
SQC322520T-2R2□-N
SQC322520T-3R3□-N
SQC322520T-3R9□-N
SQC322520T-4R7□-N
SQC322520T-6R8□-N
SQC322520T-100□-N
SQC322520T-150□-N
SQC322520T-220□-N
SQC322520T-270□-N
SQC322520T-330□-N
SQC322520T-470□-N
SQC322520T-560□-N
SQC322520T-101□-N
SQC322520T-151□-N
SQC322520T-221□-N
SQC322520T-271□-N
SQC322520T-331□-N
SQC322520T-391□-N
SQC322520T-471□-N
SQC322520T-561□-N
Inductance
(uH)
0.47
1.0
2.2
3.3
3.9
4.7
6.8
10
15
22
27
33
47
56
100
150
220
270
330
390
470
560
Tolerance
(±%)
20
20
20
20 / 10
20
20
20
20 / 10
20 / 10
20 / 10
20 / 10
20 / 10
20 / 10
20 / 10
20 / 10
20 / 10 / 5
20 / 10 / 5
20 / 10
20 / 10 / 5
20 / 10
20 / 10
20 / 10
Test
Frequency
(MHz)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.001
0.001
SRF
(MHz) Min
150
96
64
60
50
43
30
26
22
19
15
15
15
12
10
7
6.8
6
5.6
5
5
5
RDC
(Ω±30%)
0.042
0.09
0.13
0.15
0.16
0.20
0.26
0.44
0.55
0.71
0.90
1.10
1.30
2.30
3.50
6.00
8.40
10.0
10.0
17.0
19.0
22.0
Rated current
(mA)
1100
1000
600
600
500
450
400
300
350
250
230
200
170
150
100
80
70
65
60
60
60
60
Note: When ordering, please specify tolerance code. Tolerance : J=±5% , K=±10% , M=±20%
Operating temperature range－25℃½125℃(Including self - temperature rise)
Rated Current：Self temperature rise shall be limited to 35℃ Max Inductance drop 10% typ.
Measure Equipment：
L：Agilent HP4192A
SRF：Agilent HP4291A
RDC：CHEN HWA 502
Rate Current：HP4284A+HP42841A
Electrical Characteristics (LOW DCR Type)
Part Number
SQC322520LT-R15□-N
SQC322520LT-R27□-N
SQC322520LT-R47□-N
SQC322520LT-1R0□-N
SQC322520LT-1R5□-N
SQC322520LT-2R2□-N
SQC322520LT-3R3□-N
SQC322520LT-4R7□-N
SQC322520LT-6R8□-N
SQC322520LT-100□-N
Inductance
(uH)
0.15
0.27
0.47
1.0
1.5
2.2
3.3
4.7
6.8
10
Tolerance
(±%)
20
20
20
20
20
20
20
20 / 10
20
20 / 10
Test
Frequency
(MHz)
1
1
1
1
1
1
1
1
1
1
SRF
(MHz) Min
400
250
150
100
85
64
55
43
30
26
RDC
(Ω±30%)
0.028
0.034
0.042
0.060
0.085
0.097
0.13
0.15
0.21
0.30
Rated current
(mA)
1450
1250
1100
1000
900
790
700
650
600
450
Note: When ordering, please specify tolerance code. Tolerance : J=±5% , K=±10% , M=±20%
Operating temperature range－40℃½125℃(Including self - temperature rise)
Rated Current：Self temperature rise shall be limited to 35℃ Max Inductance drop 10% typ.
Measure Equipment：
L：Agilent HP4192A
SRF：Agilent HP4291A
RDC：CHEN HWA 502
Rate Current：HP4284A+HP42841A
SMD Wire Wound Ferrite Chip Inductors - SQC Series
Electrical Characteristics
Part Number
Inductance
(uH)
1.0
1.5
1.8
2.2
3.3
4.7
6.8
10
15
22
33
47
68
100
150
220
330
470
560
680
820
1000
1500
Tolerance
(±%)
20
20
20
20 / 10
20
20 / 10
20 / 10
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
20 / 10 / 5
Test
Frequency
(MHz)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.001
0.001
0.001
0.001
0.001
SRF
(MHz) Min
100
85
65
60
47
35
30
23
20
15
12
10
8.4
6.8
5.5
4.5
3.6
3.0
2.5
2.2
2.0
2.0
1.8
RDC
(Ω) Max
0.08
0.09
0.10
0.11
0.13
0.15
0.20
0.24
0.32
0.60
1.0
1.1
1.7
2.2
3.5
4.0
6.8
8.5
10.4
14.7
20.0
27.9
35.0
Rated current
(mA)
1080
1000
900
900
800
750
720
650
570
420
310
280
220
190
130
110
100
90
80
70
60
50
40
SQC453226T-1R0□-N
SQC453226T-1R5□-N
SQC453226T-1R8□-N
SQC453226T-2R2□-N
SQC453226T-3R3□-N
SQC453226T-4R7□-N
SQC453226T-6R8□-N
SQC453226T-100□-N
SQC453226T-150□-N
SQC453226T-220□-N
SQC453226T-330□-N
SQC453226T-470□-N
SQC453226T-680□-N
SQC453226T-101□-N
SQC453226T-151□-N
SQC453226T-221□-N
SQC453226T-331□-N
SQC453226T-471□-N
SQC453226T-561□-N
SQC453226T-681□-N
SQC453226T-821□-N
SQC453226T-102□-N
SQC453226T-152□-N
Note: When ordering, please specify tolerance code. Tolerance : J=±5% , K=±10% , M=±20%
Operating temperature range－40℃½125℃(Including self - temperature rise)
Rated Current：Self temperature rise shall be limited to 35℃ Max Inductance drop 10% typ.
Measure Equipment：
L：Agilent HP4192A
SRF：Agilent HP4291A
RDC：CHEN HWA 502
Rate Current：HP4284A+HP42841A
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