SMD Power Inductor
CDRR157
Description
• Ferrite drum core construction.
• Magnetically shielded.
• L×W×H: 18.5×15.0×7.0mm Max.
• Product weight: 2.8g(Ref.)
• Moisture Sensitivity Level: 1
• RoHS compliance.
Environmental Data
• Operating temperature range: -40℃½+100℃
(including coil’s self temperature rise)
• Storage temperature range: -40℃½+100℃
• Solder reflow temperature: 260
℃
peak.
2.6
RoHS
Dimension - [mm]
MAX.18.5
MAX.7.0
12.7
2.6
Packaging
• Carrier tape and reel packaging.
• 13”diameter reel
• 300pcs per reel
Applications
• Ideally used in Portable Computers, Video
Recorder, DSC/DVC, etc as DC-DC Converter
inductors.
MAX.15.0
Land pattern and Schematics - [mm]
1.
24
3.0
3.0
3.0
(1.3μH½33μH)
(47μH½1.0mH)
3.0
Page 1 of 5
Revised: 9-Jan-17
SMD Power Inductor
CDRR157
Electrical Characteristics
Part Name
CDRR157NP-1R3MC
CDRR157NP-2R0MC
CDRR157NP-2R7MC
CDRR157NP-3R3MC
CDRR157NP-4R7MC
CDRR157NP-6R8MC
CDRR157NP-100MC
CDRR157NP-150MC
CDRR157NP-220MC
CDRR157NP-330MC
CDRR157NP-470MC
CDRR157NP-680MC
CDRR157NP-101MC
CDRR157NP-151MC
CDRR157NP-221MC
CDRR157NP-271MC
CDRR157NP-331MC
CDRR157NP-471MC
CDRR157NP-681MC
CDRR157NP-102MC
Stamp
1R3M
2R0M
2R7M
3R3M
4R7M
6R8M
100M
150M
220M
330M
470M
680M
101M
151M
221M
271M
331M
471M
681M
102M
Inductance
（μH ）
［within½※1
1.3μH±20％
2.0μH±20％
2.7μH±20％
3.3μH±20％
4.7μH±20％
6.8μH±20％
10μH±20％
15μH±20％
22μH±20％
33μH±20％
47μH±20％
68μH±20％
100μH±20％
150μH±20％
220μH±20％
270μH±20％
330μH±20％
470μH±20％
680μH±20％
1000μH±20％
D.C.R .(mΩ)
Max. (Typ.)
(at 20℃)
5.7(4.5)
7.0(5.6)
8.3(6.6)
9.6(7.7)
12.9(10.3)
16.5(13.2)
25.0(20.0)
37.5(30.0)
47.0(37.5)
69.0(55.0)
105.0(84.0)
166.0(133)
244.0(195)
330.0(264)
485.0(388)
595.0(475)
738.0(590)
1000.0(800)
1544(1227)
2388(1910)
Saturation
Current
（A）※2
17.0
13.4
12.0
10.8
9.2
7.6
6.4
5.0
4.2
3.5
2.9
2.4
2.0
1.6
1.3
1.2
1.1
0.9
0.75
0.60
Temperature
rise current
( A )
※3
9.2
9.0
8.0
7.5
6.5
6.0
5.0
3.8
3.5
2.7
2.0
1.6
1.3
1.1
0.9
0.8
0.7
0.6
0.5
0.4
※1.
Inductance measuring condition: at 100 kHz.
※2.
Saturation current: The value of D.C. current when the inductance decreases to 90% of it’s nominal value.
※3.
Temperature rise current: The value of D.C. current when the temperature rise is
△t＝40℃(Ta＝20℃).
Page 2 of 5
Revised: 9-Jan-17
SMD Power Inductor
CDRR157
Saturation Current & Temperature Rise Graph
L (20℃)
L (μH)
1. CDRR157NP-1R3MC
△T
(℃)
△T
L (μH)
2. CDRR157NP-2R0MC
△T
(℃)
L (μH)
3. CDRR157NP-2R7MC
△T
(℃)
1.8
1.5
1.2
0.9
0.6
0.3
0.0
0
L (μH)
60
50
40
30
20
10
0
5
10
15
20
25
△T
(℃)
2.4
2.0
1.6
1.2
0.8
0.4
0.0
0
L (μH)
60
50
40
30
20
10
0
4
8
12
DC (A)
16
20
△T
(℃)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
L (μH)
60
50
40
30
20
10
0
3
6
9 12
DC (A)
15
18
△T
(℃)
DC (A)
4. CDRR157NP-3R3MC
5. CDRR157NP-4R7MC
6. CDRR157NP-6R8MC
4.8
4.0
3.2
2.4
1.6
0.8
0.0
0
L (μH)
60
50
40
30
20
10
0
4
8
DC (A)
12
16
△T
(℃)
6
5
4
3
2
1
0
0
L (μH)
60
50
40
30
20
10
0
3
6
9
DC (A)
12
15
△T
(℃)
9.0
7.5
6.0
4.5
3.0
1.5
0.0
0
L (μH)
60
50
40
30
20
10
0
2
4
6
8
DC (A)
10
12
△T
(℃)
7. CDRR157NP-100MC
8. CDRR157NP-150MC
9. CDRR157NP-220MC
12
10
8
6
4
2
0
0
L (μH)
60
50
40
30
20
10
0
2
4
6
DC (A)
8
10
△T
(℃)
18
15
12
9
6
3
0
0
L (μH)
60
50
40
30
20
10
0
2
4
DC (A)
6
8
△T
(℃)
24
20
16
12
8
4
0
0
L (μH)
60
50
40
30
20
10
0
1
2
3
4
DC (A)
5
6
△T
(℃)
10. CDRR157NP-330MC
11. CDRR157NP-470MC
12. CDRR157NP-680MC
36
30
24
18
12
6
0
0
1
2
3
4
5
60
50
40
30
20
10
0
60
50
40
30
20
10
0
0
1
2
3
4
60
50
40
30
20
10
0
90
75
60
45
30
15
0
0.0 0.6 1.2 1.8 2.4 3.0 3.6
60
50
40
30
20
10
0
DC (A)
DC (A)
DC (A)
Page 3 of 5
Revised: 9-Jan-17
SMD Power Inductor
CDRR157
Saturation Current & Temperature Rise Graph
L (20℃)
L (μH)
13. CDRR157NP-101MC
△T
(℃)
△T
L (μH)
14. CDRR157NP-151MC
△T
(℃)
L (μH)
15. CDRR157NP-221MC
△T
(℃)
120
100
80
60
40
20
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
DC (A)
L (μH)
16. CDRR157NP-271MC
60
50
40
30
20
10
0
180
150
120
90
60
30
0
0.0 0.4 0.8 1.2 1.6 2.0 2.4
DC (A)
L (μH)
17. CDRR157NP-331MC
60
50
40
30
20
10
0
240
200
160
120
80
40
0
0.0
L (μH)
60
50
40
30
20
10
0
0.4
0.8 1.2
DC (A)
1.6
2.0
△T
(℃)
△T
(℃)
△T
(℃)
18. CDRR157NP-471MC
300
250
200
150
100
50
0
0.0 0.3 0.6 0.9 1.2 1.5 1.8
DC (A)
L (μH)
19. CDRR157NP-681MC
60
50
40
30
20
10
0
360
300
240
180
120
60
0
0.0
L (μH)
60
50
40
30
20
10
0
0.4
0.8
DC (A)
1.2
1.6
△T
(℃)
600
500
400
300
200
100
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2
60
50
40
30
20
10
0
DC (A)
60
50
40
30
20
10
0
△T
(℃)
20. CDRR157NP-102MC
900
750
600
450
300
150
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2
60
50
40
30
20
10
0
1200
1000
800
600
400
200
0
0.0
0.2
0.4
0.6
0.8
1.0
DC (A)
DC (A)
Page 4 of 5
Revised: 9-Jan-17
SMD Power Inductor
CDRR157
Solder Reflow Condition
T (℃)
300
250
200
150
100
50
0
0
60
120
180
240
300
T (s)
Heat Endurance
260℃
230℃
10
60
T (℃)
300
250
200
150
100
50
0
0
60
120
180
240
300 T (s)
170±10
℃,60~120s
Temperature Chart
245℃ PEAK
230℃
40s
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Page 5 of 5
Revised: 9-Jan-17
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