SPECIFICATIONS
Parts are marked to indicate tolerance available.
K = ±10%
L Test SRF DCR Saturation Wire Dia. Rated
Part Inductance Freq. Min. Max. DC Ref. AC
Number (µH) (kHz) (MHz) (ΩΩ) (A) (mm) (A)
CTH8RF-3R9K 3.9 1.0 34 .01 15 1.2 4.0
CTH8RF-4R7K 4.7 1.0 31 .01 14 1.2 4.0
CTH8RF-5R6K 5.6 1.0 29 .01 12 1.0 4.0
CTH8RF-6R8K 6.8 1.0 26 .01 11 .90 4.0
CTH8RF-8R2K 8.2 1.0 23 .01 9.9 .90 4.0
CTH8RF-100K 10 1.0 20 .02 8.7 .80 4.0
CTH8RF-120K 12 1.0 17 .02 8.2 .80 4.0
CTH8RF-150K 15 1.0 14 .02 7.3 .90 4.0
CTH8RF-180K 18 1.0 11 .02 6.6 .80 4.0
CTH8RF-220K 22 1.0 10 .03 6.1 .80 4.0
CTH8RF-270K 27 1.0 9.0 .03 5.3 .80 4.0
CTH8RF-330K 33 1.0 9.0 .03 4.8 .80 4.0
CTH8RF-390K 39 1.0 8.0 .03 4.3 .80 4.0
CTH8RF-470K 47 1.0 7.0 .04 4.0 .80 4.0
CTH8RF-560K 56 1.0 6.0 .04 3.6 .80 3.2
CTH8RF-680K 68 1.0 5.0 .05 3.3 .80 2.5
CTH8RF-820K 82 1.0 4.0 .06 3.1 .75 2.0
CTH8RF-101K 100 1.0 3.0 .09 2.8 .65 1.6
CTH8RF-121K 120 1.0 3.0 .11 2.5 .65 1.6
CTH8RF-151K 150 1.0 3.0 .13 2.2 .65 1.6
CTH8RF-181K 180 1.0 2.0 .15 2.0 .60 1.6
CTH8RF-221K 220 1.0 2.0 .16 1.9 .60 1.6
CTH8RF-271K 270 1.0 2.0 .21 1.6 .55 1.6
CTH8RF-331K 330 1.0 2.0 .21 1.5 .55 1.6
CTH8RF-391K 390 1.0 2.0 .28 1.4 .50 1.6
CTH8RF-471K 470 1.0 1.0 .38 1.2 .50 1.2
CTH8RF-561K 560 1.0 1.0 .42 1.2 .45 1.0
CTH8RF-681K 680 1.0 1.0 .55 1.0 .45 1.0
CTH8RF-821K 820 1.0 1.0 .66 .97 .40 .80
CTH8RF-102K 1000 1.0 1.0 .84 .87 .40 .80
CTH8RF-122K 1200 1.0 1.0 1.0 .79 .40 .60
CTH8RF-152K 1500 1.0 .75 1.2 .70 .37 .60
CTH8RF-182K 1800 1.0 .72 1.6 .64 .32 .60
CTH8RF-222K 2200 1.0 .70 2.0 .58 .30 .50
CTH8RF-272K 2700 1.0 .65 2.1 .53 .30 .40
CTH8RF-332K 3300 1.0 .60 2.6 .47 .30 .40
CTH8RF-392K 3900 1.0 .55 2.8 .43 .29 .40
CTH8RF-472K 4700 1.0 .50 3.2 .39 .30 .40
CTH8RF-562K 5600 1.0 .40 3.9 .36 .30 .32
CTH8RF-682K 6800 1.0 .35 5.7 .32 .25 .25
CTH8RF-822K 8200 1.0 .30 6.3 .29 .25 .25
CTH8RF-103K 10000 1.0 .30 7.3 .26 .22 .25
CTH8RF-123K 12000 1.0 .30 10 .26 .22 .16
CTH8RF-153K 15000 1.0 .30 11 .23 .20 .16
CTH8RF-183K 18000 1.0 .20 15 .21 .20 .13
CTH8RF-223K 22000 1.0 .20 17 .19 .18 .13
CTH8RF-273K 27000 1.0 .15 19 .17 .17 .13
CTH8RF-333K 33000 1.0 .15 27 .15 .16 .10
CTH8RF-393K 39000 1.0 .15 29 .14 .16 .10
CTH8RF-473K 47000 1.0 .10 32 .13 .16 .10
CTH8RF-563K 56000 1.0 .10 43 .12 .16 .08
CTH8RF-683K 68000 1.0 .10 47 .11 .14 .08
CTH8RF-823K 82000 1.0 .10 65 .10 .14 .07
CTH8RF-104K 100000 1.0 .10 72 .10 .13 .07
CTH8RF Series
From 3.9 µH to 100,000 µH
Not shown at actual size.
CHARACTERISTICS
Description: Radial leaded power line inductor (UL sleeved)
Applications: Used in switching regulators, power amplifiers,
power supplies, SCR and Triac controls, speaker crossover
networks, RFI suppression and filters. Various applications
Operating Temperature: -55°C to +125°C
Inductance Tolerance: ±10%
Testing: Inductance is tested on an HP4284A at 1.0 kHz
Packaging: Bulk pack
Marking: Coils are sleeved in heat resistant polyolefin and
labeled with the part number
Saturation Current: Lowers inductance by 5%
Bobbin: High saturation, allows for high inductance with low
DC resistance
Miscellaneous: RoHS Compliant. Higher current parts available.
Additional Information: Additional electrical & physical
information available upon request
Samples available. See website for ordering information.