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www.ctparts.com
Volume Manufacturer of Quality Inductors, Chokes & Coils ©
For more information contact our distributor:
Inductors Inc., 5 Technology Drive, Irvine, CA 92618
Inside US 800-533-8295 ●Outside US 949-623-2460 ●Fax 949-623-1401
5/16/00
Drum Cores
Ordering Info
Central Tech DCR Saturation Rated Dimension E
Part Inductance Max. DC DC Approx.
Number (µH) (ΩΩ) (A) (A) Inches
CTDR3-1R0K 1.0 .003 116 21 .80
CTDR3-1R2K 1.2 .003 116 21 .80
CTDR3-1R5K 1.5 .003 116 21 .80
CTDR3-1R8K 1.8 .003 90 21 .80
CTDR3-2R2K 2.2 .003 90 21 .80
CTDR3-2R7K 2.7 .003 74 21 .80
CTDR3-3R3K 3.3 .003 74 21 .80
CTDR3-3R9K 3.9 .003 62 21 .80
CTDR3-4R7K 4.7 .003 54 21 .80
CTDR3-5R6K 5.6 .003 54 21 .80
CTDR3-6R8K 6.8 .004 47 21 .80
CTDR3-8R2K 8.2 .004 42 21 .80
CTDR3-100K 10 .006 38 17 .70
CTDR3-120K 12 .008 35 13 .69
CTDR3-150K 15 .009 32 13 .69
CTDR3-180K 18 .010 29 13 .69
CTDR3-220K 22 .011 25 13 .69
CTDR3-270K 27 .012 23 13 .79
CTDR3-330K 33 .017 20 13 .79
CTDR3-390K 39 .022 19 11 .79
CTDR3-470K 47 .024 19 9.0 .75
CTDR3-560K 56 .026 17 9.0 .75
CTDR3-680K 68 .029 15 9.0 .75
CTDR3-820K 82 .032 14 9.0 .75
CTDR3-101K 100 .034 13 9.0 .78
CTDR3-121K 120 .046 12 7.2 .75
CTDR3-151K 150 .064 11 5.5 .78
CTDR3-181K 180 .072 9.7 5.5 .78
CTDR3-221K 220 .080 8.7 5.5 .78
CTDR3-271K 270 .110 7.9 4.5 .75
CTDR3-331K 330 .122 7.1 4.5 .81
CTDR3-391K 390 .169 67 4.0 .75
CTDR3-471K 470 .187 6.0 4.0 .75
CTDR3-561K 560 .205 5.5 4.0 .75
CTDR3-681K 680 .256 5.0 2.8 .72
CTDR3-821K 820 .288 4.5 2.8 .84
CTDR3-102K 1000 .426 4.1 2.0 .75
CTDR3-122K 1200 .462 3.7 2.0 .75
CTDR3-152K 1500 .518 3.4 2.0 .75
CTDR3-182K 1800 .705 2.8 1.6 .77
CTDR3-222K 2200 1.02 2.5 1.3 .77
CTDR3-272K 2700 1.14 2.3 1.3 .77
CTDR3-332K 3300 1.27 2.0 1.3 .75
CTDR3-392K 3900 1.67 1.8 1.0 .75
CTDR3-472K 4700 1.86 1.7 1.0 .75
CTDR3 Series
From 1.0 µH to 4,700 µH
Not shown at actual size.
Characteristics
Rated DC Current: Measured at 20°C
Saturation Current: Lowers inductance by 5%
Inductance Tolerance: K = ±10%
Packaging: Bulk pack
Testing: Inductance and Q are tested on a HP4262A
at 1kHz
Leads: Tinned for PC mounting to within 1/16”of the
par ts body
Sleeving: Coils finished with UL-VW-1 sleeving
Mounting: Center hole furnished for mechanical mounting
Customs: Non-standard tolerances and values available
upon request
117
Volume Manufacturer of Quality Inductors, Chokes & Coils ©
www.ctparts.com
For more information contact our distributor:
Inductors Inc., 5 Technology Drive, Irvine, CA 92618
Inside US 800-533-8295 ●Outside US 949-623-2460 ●Fax 949-623-1401 5/16/00
Drum Cores
CTDR3 Series
Notes
Size A B C D
mm 21.3 28.0 12.7 4.95
inches 0.840 1.10 0.500 0.195
Physical Dimensions
