Drum Cores
ctparts.com
CTDR3 Series
From 1.5 µH to 4,700 µH
Part
Number
CTDR3-1R5M
CTDR3-2R2M
CTDR3-3R3M
CTDR3-4R7M
CTDR3-6R8M
CTDR3-8R2M
CTDR3-100K
CTDR3-120K
CTDR3-150K
CTDR3-180K
CTDR3-220K
CTDR3-270K
CTDR3-330K
CTDR3-390K
CTDR3-470K
CTDR3-560K
CTDR3-680K
CTDR3-820K
CTDR3-101K
CTDR3-121K
CTDR3-151K
CTDR3-181K
CTDR3-221K
CTDR3-271K
CTDR3-331K
CTDR3-391K
CTDR3-471K
CTDR3-561K
CTDR3-681K
CTDR3-821K
CTDR3-102K
CTDR3-122K
CTDR3-152K
CTDR3-182K
CTDR3-222K
CTDR3-272K
CTDR3-332K
CTDR3-392K
CTDR3-472K
Not shown at actual size.
SPECIFICATIONS
Parts are marked to indicate tolerance available.
K = ±10%, M = ±20%
Inductance
(µH)
1.5
2.2
3.3
4.7
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
1200
1500
1800
2200
2700
3300
3900
4700
L Test
Freq.
(kHz)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
DCR
Max.
Ω
(Ω)
.003
.003
.003
.003
.004
.004
.006
.008
.009
.01
.01
.01
.03
.02
.02
.03
.03
.03
.03
.05
.06
.07
.08
.11
.12
.17
.19
.21
.26
.29
.43
.46
.52
.71
1.0
1.1
1.3
1.7
1.9
Saturation
DC
(A)
116
90
74
54
47
42
38
35
32
29
25
23
20
19
19
17
15
14
13
12
11
9.7
8.7
7.9
7.1
67
6.0
5.5
5.0
4.5
4.1
3.7
3.4
2.8
2.5
2.3
2.0
1.8
1.7
Rated
DC
(A)
21
21
21
21
21
21
17
13
13
13
13
13
13
11
9.0
9.0
9.0
9.0
9.0
7.2
5.5
5.5
5.5
4.5
4.5
4.0
4.0
4.0
2.8
2.8
2.0
2.0
2.0
1.6
1.3
1.3
1.3
1.0
1.0
Dimension E
Approx.
Inches
.80
.80
.80
.80
.80
.80
.70
.69
.69
.69
.69
.79
.79
.79
.75
.75
.75
.75
.78
.75
.78
.78
.78
.75
.81
.75
.75
.75
.72
.84
.75
.75
.75
.77
.77
.77
.75
.75
.75
CHARACTERISTICS
Description:
Radial leaded drum core inductor
Applications:
Used in switching regulators, power amplifiers,
power supplies, SCR and Triac controls, speaker crossover
networks, RFI suppression and filters
Operating Temperature:
-20°C to +100°C
Inductance Tolerance:
±10%, ±20%
Testing:
Inductance is tested on an HP4284A at 1.0 kHz
Packaging:
Bulk pack
Leads:
Tinned for PC mounting to within 1/16” of the parts body
Sleeving:
Coils finished with UL-VW-1 sleeving
Mounting:
Center hole furnished for mechanical mounting
Rated DC Current:
Measured at 20°C
Saturation Current:
Lowers inductance by 5%
Miscellaneous:
Non-standard tolerances and other
values available
Additional Information:
Additional electrical & physical
information available upon request
Samples available. See website for ordering information.
PHYSICAL DIMENSIONS
Size
mm
inches
Max.
21.3
0.84
A
Max.
28
1.1
B
Nom.
12.7
0.5
C
Nom.
4.95
0.2
D
Volume Manufacturer of Inductive Components
800-684-5322
Inside US
949-453-1811
Outside US
7.12.14.01
Copyright © 2002 by CT Magnetics. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice.
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