306 E. Alondra Blvd. Gardena, CA 90247-1059 • Phone (310) 515-1720 • FAX (310) 515-1962
wwww.jwmiller.com
17.3
Conformal Coated RF Chokes
78F Series
Part
Number
L (µH)
±20%
Q
Min.
Test
Freq.
(MHz)
SRF
(MHz)
Min.
DCR
Ω
Max.
I, DC*
(mA)
78FR033M 0.033 50 50 400 0.02 500
78FR10M 0.10 40 25 400 0.06 500
78FR12M 0.12 40 25 400 0.06 500
78FR15M 0.15 40 25 400 0.07 500
78FR18M 0.18 40 25 400 0.08 450
±10%
78FR22K 0.22 40 25 380 0.08 1025
78FR27K 0.27 40 25 360 0.08 950
78FR33K 0.33 40 25 350 0.08 815
78FR39K 0.39 40 25 320 0.09 700
78FR47K 0.47 40 25 330 0.10 650
78FR56K 0.56 40 25 280 0.11 545
78FR68K 0.68 40 25 250 0.12 495
78FR82K 0.82 40 25 200 0.12 415
78F1R0K 1.0 40 25 180 0.15 385
78F1R2K 1.2 40 7.9 165 0.18 590
78F1R5K 1.5 45 7.9 150 0.20 535
78F1R8K 1.8 50 7.9 125 0.25 455
78F2R2K 2.2 50 7.9 110 0.28 395
78F2R7K 2.7 50 7.9 95 0.30 355
±5%
78F3R3J 3.3 50 7.9 70 0.34 270
78F3R9J 3.9 45 7.9 65 0.32 250
78F4R7J 4.7 45 7.9 50 0.35 230
78F5R6J 5.6 45 7.9 40 0.40 185
78F6R8J 6.8 40 7.9 30 0.45 175
78F8R2J 8.2 40 7.9 28 0.55 155
78F100J 10 40 7.9 22 0.72 130
78F120J 12 45 2.5 20 0.80 155
78F150J 15 50 2.5 16 0.88 150
78F180J 18 50 2.5 15 1.00 145
78F220J 22 50 2.5 13 1.20 140
78F270J 27 50 2.5 11 1.35 135
78F330J 33 50 2.5 10 1.50 195
78F390J 39 50 2.5 9.5 1.70 185
78F470J 47 60 2.5 8.5 2.30 167
78F560J 56 60 2.5 7.5 2.60 150
78F680J 68 60 2.5 6.5 2.90 137
78F820J 82 60 2.5 6.0 3.20 132
78F101J 100 60 2.5 5.5 3.50 125
78F121J 120 60 0.79 5.4 3.80 100
78F151J 150 60 0.79 4.7 4.40 90
78F181J 180 60 0.79 4.3 5.00 84
78F221J 220 60 0.79 4.0 5.70 76
78F271J 270 60 0.79 3.7 6.50 70
78F331J 330 60 0.79 3.4 9.50 65
78F391J 390 60 0.79 2.8 10.5 60
78F471J 470 60 0.79 2.5 11.6 53
78F561J 560 60 0.79 2.3 13.0 51
78F681J 680 60 0.79 2.0 18.0 45
78F821J 820 60 0.79 1.5 23.0 43
78F102J 1000 60 0.79 1.2 26.0 41
Special Features
• High Q & self resonant frequency
• Low DCR
• Ferrite bobbin core
• Epoxy coated to protect winding form
harsh environments
• Low cost
• Color bands identification (Per EIA Standard)
• Dielectric strength 500Vrms
• Operating temperature –55 - +105°C
Notes
* Current to cause 35°C maximum
temperature rise
Also available as RoHS compliant.
1.0
Min.
0.020
0.28
Max.
0.11 Max.
Dimensions: Inches
