SMD Power Inductor
CDRCH12D78B
Description
• Ferrite drum core construction.
• Magnetically shielded.
• L W H:12.5 12.5 x8.0 mm Max.
• Product weight: 4.1g(Ref.)
• Moisture Sensitivity Level: 1
• RoHS compliance.
• Halogen Free available.
Environmental Data
• Operating temperature range: -40 ~+125
(including coil’s self temperature rise)
+125
• Storage temperature range: -40
• Solder reflow temperature: 260
peak.
Packaging
• Carrier tape and reel packaging.
• 13.0”diameter reel
• 500pcs per reel
RoHS
Halogen
Free
Dimension - [mm]
0. 5
0 .8.xaM
3.0± 2.21
Land pattern and Schematics - [mm]
Applications
• Ideally used in LED modules, DC/DC
converters and 1:1 Transformer, etc.
Dual Inductor
Series Mode
Parallel Mode
Page 1 of 7
Revised: 4-Jan-12
℃
℃
℃
½℃
℃
×
× ×
6
.
5
2
.
7
5
2
.
7
5
7 .1
6 .1
1
2
.
2
±
0
.
3
SMD Power Inductor
CDRCH12D78B
Electrical Characteristics
4.7±30%
CDRCH12D78BHF-4R7NC
4R7
18.8±30%
4.7±30%
6.8±30%
CDRCH12D78BHF-6R8NC
6R8
27.2±30%
6.8±30%
10±20%
CDRCH12D78BHF-100MC
100
40±20%
10±20%
15±20%
CDRCH12D78BHF-150MC
150
60±20%
15±20%
22±20%
CDRCH12D78BHF-220MC
220
88±20%
22±20%
33±20%
CDRCH12D78BHF-330MC
330
132±20%
33±20%
47±20%
CDRCH12D78BHF-470MC
470
188±20%
47±20%
68±20%
CDRCH12D78BHF-680MC
680
272±20%
68±20%
100±20%
CDRCH12D78BHF-101MC
101
440±20%
100±20%
150±20%
CDRCH12D78BHF-151MC
151
600±20%
150±20%
220±20%
CDRCH12D78BHF-221MC
221
880±20%
220±20%
330±20%
CDRCH12D78BHF-331MC
331
1320±20%
330±20%
470±20%
CDRCH12D78BHF-471MC
471
1880±20%
470±20%
40m(30m
13.2(15.6)
6.6(7.8)
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)
80m(60m
46m(36m
20m(16m
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)
4.1(4.8)
8.2(9.7
7.0(8.2
7.0(8.2
92m(72m)
54m(42m
23m(18m)
108m(84m)
27m(21m)
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)
72m(58m
3.5(4.1)
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)
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
℃ ＝ ℃ ＝△
）
8.2(9.7
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)
Revised: 4-Jan-12
※
※
）
）
）
）
）
※μ
Part Name
Stamp
）
）
）
）
※
Ω
Inductance
( H)
[within] 1
D.C.R. ( )
[Max.] 2
Saturation
Current (A) 3
Temperature rise
current (A) 4
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
※
※
※
※
SMD Power Inductor
CDRCH12D78B
DC (A)
Saturation Current & Temperature Rise Graph - Series Mode
DC (A)
DC (A)
DC (A)
DC (A)
DC (A)
DC (A)
DC (A)
DC (A)
DC (A)
Page 4 of 7
Revised: 4-Jan-12
06
05
04
03
02
01
℃ △
0
0.2
6.1
2.1
8.0
4.0
0.0
μ
0
07
024
053
082
012
041
06
05
04
03
02
01
℃ △
0
5.2
0.2
5.1
0.1
5.0
0.0
μ
0
05
003
052
002
051
001
06
05
04
03
02
01
℃ △
L ( H)
7. CDRCH12D78BHF-470MC
T( )
L ( H)
8. CDRCH12D78BHF-680MC
T( )
L ( H)
9. CDRCH12D78BHF-101MC
T( )
06
05
04
03
02
01
℃ △
0
6.3 0.3 4.2 8.1 2.1 6.0 0.0
μ
0
09
06
03
081
051
021
06
05
04
03
02
01
℃ △
0
5
4
3
2
1
0
μ
09
57
06
54
03
51
0
06
05
04
03
02
01
℃ △
L ( H)
4. CDRCH12D78BHF-150MC
T( )
L ( H)
5. CDRCH12D78BHF-220MC
T( )
L ( H)
6. CDRCH12D78BHF-330MC
T( )
06
05
04
03
02
01
℃ △
0
8
6
4
2
0
μ
84
04
23
42
61
8
0
06
05
04
03
02
01
℃ △
0
8
6
4
2
0
μ
03
52
02
51
01
5
0
06
05
04
03
02
01
℃ △
L ( H)
1. CDRCH12D78BHF-4R7NC
T( )
△
L (20 )
0
0
0
06
05
04
03
02
01
℃ △
01
L ( H)
13. CDRCH12D78BHF-471MC
T( )
0.3 5.2 0.2 5.1 0.1 5.0 0.0
0
6
0.2
5
8
6.1
4
℃
6
2.1
3
4
8.0
2
2
4.0
1
0
0
0.0
μ
μ
μ
0
08
04
042
002
061
021
09
57
06
54
03
51
0
8
4
0
42
02
61
21
μ
0
006
005
004
003
002
001
T
L ( H)
2. CDRCH12D78BHF-6R8NC
T( )
L ( H)
3. CDRCH12D78BHF-100MC
T( )
SMD Power Inductor
CDRCH12D78B
10. CDRCH12D78BHF-151MC
11. CDRCH12D78BHF-221MC
12. CDRCH12D78BHF-331MC
DC (A)
DC (A)
DC (A)
13. CDRCH12D78BHF-471MC
L ( H)
T( )
DC (A)
Saturation Current & Temperature Rise Graph - Parallel Mode
L (20 )
T
DC (A)
DC (A)
DC (A)
DC (A)
DC (A)
DC (A)
Page 5 of 7
Revised: 4-Jan-12
06
05
04
03
02
01
℃ △
0
8
6
4
2
0
μ
63
03
42
81
21
6
0
06
05
04
03
02
01
℃ △
0
01
8
6
4
2
0
μ
42
02
61
21
8
4
0
06
05
04
03
02
01
℃ △
L ( H)
4. CDRCH12D78BHF-150MC
T( )
L ( H)
5. CDRCH12D78BHF-220MC
T( )
L ( H)
6. CDRCH12D78BHF-330MC
T( )
06
05
04
03
02
01
℃ △
0
51
21
9
6
3
0
μ
21
01
8
6
4
2
0
06
05
04
03
02
01
℃ △
0
61
21
8
4
0
μ
21
01
8
6
4
2
0
06
05
04
03
02
01
℃ △
L ( H)
1. CDRCH12D78BHF-4R7NC
T( )
L ( H)
2. CDRCH12D78BHF-6R8NC
T( )
L ( H)
3. CDRCH12D78BHF-100MC
T( )
06
05
04
03
02
01
0
℃ △
2.1 0.1 8.0 6.0 4.0 2.0 0.0
μ
0
009
006
003
0081
0051
0021
06
05
04
03
02
01
℃ △
0
5.1
2.1
9.0
6.0
3.0
0.0
0
008
006
004
002
0021
0001
μ
℃ △
△
06
05
04
03
02
01
06
05
04
03
02
01
0
℃ △
0
0
0
0.1
21
81
L ( H)
T( )
L ( H)
T( )
L ( H)
T( )
8.1 5.1 2.1 9.0 6.0 3.0 0.0
01
51
8.0
21
8
6.0
℃
6
9
4.0
4
6
2.0
2
3
0.0
μ
0
0
008
004
0042
0002
0061
0021
μ
μ
μ
0
0
009
057
006
054
003
051
81
51
21
9
6
3
0
6
5
4
3
2
1
0
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