CT CTDR1-221K

Drum Cores - Radial Leaded
CTDR1 Series
From 1.0 µH to 560 µH
Not shown at actual size.
RoHS
Compliant
Available
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: -25°C to +85°C
Temperature Rise: 50°C Max. at IDC
IDC: Current at which inductance drops 10% Max.
Inductance Tolerance: ±10%, 20%
Testing: Inductance is tested on an HP4284A at 1.0 kHz, 1V
Packaging: Bulk pack
Sleeving: Coils finished with UL-VW-1 sleeving
Mounting: Center hole furnished for mechanical mounting
Miscellaneous: RoHS Compliant available. Non-standard
tolerances and other values available
Additional Information: Additional electrical & physical
information available upon request
Samples available. See website for ordering information.
ctparts.com
SPECIFICATIONS
Part numbers indicate available tolerance.
K = ±10%, M = ±20%
CTDR1F Please specify “F” for RoHS compliant.
Part
Number
Inductance
(µH)
L Test
Freq.
(kHz)
DCR
Max.
Ω)
(Ω
IDC
Max.
(A)
CTDR1_-1R0M
CTDR1_-1R2M
CTDR1_-1R5M
CTDR1_-1R8M
CTDR1_-2R2M
CTDR1_-2R7M
CTDR1_-3R3M
CTDR1_-3R9M
CTDR1_-4R7M
CTDR1_-5R6M
CTDR1_-6R8M
CTDR1_-8R2M
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
.003
.003
.004
.004
.005
.005
.005
.006
.007
.007
.008
.009
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
CTDR1_-100M
CTDR1_-120K
CTDR1_-150K
CTDR1_-180K
CTDR1_-220K
CTDR1_-270K
CTDR1_-330K
CTDR1_-390K
CTDR1_-470K
CTDR1_-560K
CTDR1_-680K
CTDR1_-820K
10
12
15
18
22
27
33
39
47
56
68
82
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
.010
.011
.015
.016
.025
.030
.040
.046
.062
.069
.077
.083
9.0
9.0
7.2
7.2
5.5
4.5
4.0
4.0
2.8
2.8
2.8
2.8
CTDR1_-101K
CTDR1_-121K
CTDR1_-151K
CTDR1_-181K
CTDR1_-221K
CTDR1_-271K
CTDR1_-331K
CTDR1_-391K
CTDR1_-471K
CTDR1_-561K
100
120
150
180
220
270
330
390
470
560
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
.095
.127
.181
.217
.240
.300
.336
.460
.636
.696
2.8
2.0
1.6
1.6
1.6
1.6
1.3
1.0
0.8
0.8
PHYSICAL DIMENSIONS
Size
mm
inches
A
B
Max.
Max.
C
D
E
Typ.
Typ.
22.0
17.0
15±2
3.0
12
0.87
0.67
0.59±0.08
0.12
0.47
E
A
CENTRAL
Technologies
04.20.05
Manufacturer of Inductors, Chokes, Coils, Beads, Transformers & Toroids
800-684-5322 Inside US
949-453-1811 Outside US
Copyright © 2005 by CT Magnetics, DBA Central Technologies. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice
C
D
B