SMD Power Inductor
CDRCH12D78B
Description
• Ferrite drum core construction.
• Magnetically shielded.
• L×W×H:12.5×12.5×8.0 mm Max.
• Product weight: 4.1g(Ref.)
• Moisture Sensitivity Level: 1
• RoHS compliance.
RoHS
Dimension - [mm]
12.2±0.3
Max.8.0
5.0
2.75
Environmental Data
• Operating temperature range: -40℃½+125℃
(including coil’s self temperature rise)
• Storage temperature range: -40℃½+125℃
• Solder reflow temperature: 260
℃
peak.
Packaging
• Carrier tape and reel packaging.
• 13.0”diameter reel
• 500pcs per reel
Applications
• Ideally used in LED modules, DC/DC
converters and 1:1 Transformer, etc.
12.2±0.3
1.6
1.7
Land pattern and Schematics - [mm]
Dual Inductor
Series Mode
Parallel Mode
Page 1 of 7
2.75
6.5
Revised: 10-Jan-17
SMD Power Inductor
CDRCH12D78B
Electrical Characteristics
Part Name
Stamp
Inductance (μH)
[within]
※1
4.7±
30%
CDRCH12D78BNP-4R7NC
4R7
18.8±
30%
4.7±
30%
6.8±
30%
CDRCH12D78BNP-6R8NC
6R8
27.2±
30%
6.8±
30%
10±
20%
CDRCH12D78BNP-100MC
100
40±
20%
10±
20%
15±
20%
CDRCH12D78BNP-150MC
150
60±
20%
15±
20%
22±
20%
CDRCH12D78BNP-220MC
220
88±
20%
22±
20%
33±
20%
CDRCH12D78BNP-330MC
330
132±
20%
33±
20%
47±
20%
CDRCH12D78BNP-470MC
470
188±
20%
47±
20%
68±
20%
CDRCH12D78BNP-680MC
680
272±
20%
68±
20%
100±
20%
CDRCH12D78BNP-101MC
101
440±
20%
100±
20%
150±
20%
CDRCH12D78BNP-151MC
151
600±
20%
150±
20%
220±
20%
CDRCH12D78BNP-221MC
221
880±
20%
220±
20%
330±
20%
CDRCH12D78BNP-331MC
331
1320±
20%
330±
20%
470±
20%
CDRCH12D78BNP-471MC
471
1880±
20%
470±
20%
D.C.R. (Ω)
[Max.]
※2
40m(30m）
80m(60m）
20m(16m）
46m(36m）
92m(72m)
23m(18m)
54m(42m）
108m(84m)
27m(21m)
72m(58m）
144m(116m)
36m(29m)
96m(80m)
192m(160m)
48m(40m)
144m(120m)
290m(240m)
72m(60m)
186m(155m)
372m(310m)
93m(77m)
266m(222m)
532m(444m)
133m(111m)
384m(320m)
768m(640m)
192m(160m)
648m(540m)
1.29(1.08)
324m(270m)
936m(780m)
1.87(1.56)
468m(390m)
1.35(1.17)
2.7(2.34)
675m(585m)
2.01(1.75)
4.02(3.50)
1005m(875m)
Saturation
Current (A)
※3
13.2(15.6)
6.6(7.8)
13.2(15.6)
12.0(14.2)
6.0(7.1)
12.0(14.2)
10.0(11.8)
5.0(5.9)
10.0(11.8)
8.2(9.7）
4.1(4.8)
8.2(9.7）
7.0(8.2）
3.5(4.1)
7.0(8.2）
5.5(6.5)
2.75(3.25)
5.5(6.5)
4.6(5.5)
2.3(2.75)
4.6(5.5)
3.9(4.6)
1.95(2.3)
3.9(4.6)
3.1(3.7)
1.55(1.85)
3.1(3.7)
2.5(3.0)
1.25(1.50)
2.5(3.0)
2.1(2.5)
1.05(1.25)
2.1(2.5)
1.7(2.1)
0.85(1.05)
1.7(2.1)
1.5(1.75)
0.75(0.88)
1.5(1.75)
Temperature rise
current (A)
※4
3.9(4.4)
2.8(3.1)
5.4(6.1)
3.6(4.1)
2.6(3.0)
5.0(5.6)
3.2(3.6)
2.3(2.6)
4.4(5.0)
2.8(3.2)
2.0(2.3)
4.0(4.6)
2.3(2.6)
1.6(1.8)
3.3(3.7)
1.8(2.1)
1.3(1.5)
2.7(3.0)
1.5(1.7)
1.1(1.3)
2.4(2.6)
1.3(1.5)
0.94(1.05)
2.0(2.3)
1.10(1.25)
0.78(0.88)
1.6(1.8)
0.83(0.95)
0.60(0.68)
1.2(1.4)
0.68(0.78)
0.48(0.55)
1.0(1.15)
0.56(0.64)
0.40(0.45)
0.83(0.94)
0.45(0.52)
0.31(0.35)
0.67(0.76)
Mode
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
Dual
Series
Parallel
※1
Measuring frequency inductance at 100 kHz.
※2
( ) are typical value.
※3
Saturation current: The value of D.C. current when the inductance is over 70% of the initial value.
※4
Temperature rise current: The value of D.C. current when the temperature rise is
△t＝40℃.(Ta＝20℃)
Page 2 of 7
Revised: 10-Jan-17
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