306 E. Alondra Blvd. Gardena, CA 90247-1059 • Phone (310) 515-1720 • FAX (310) 515-1962
wwww.jwmiller.com
20.6
Varnished RF Chokes
Special Features
• High Q, high self-resonant frequency
• High voltage application on phenolic components
• Single layer wound
• Low cost
• Varnish coated
• Color dot identification
• Operating temperature: phenolic -55 to
+125°C; iron -55 to +105°C
Notes
* Current to cause 35°C maximum
temperature rise
74F Series
Part
Number
L (µH)
±20%
Q
Min.
Test
Freq.
(MHz)
SRF
(MHz)
Min.
DCR
Ω
Max.
I, DC*
(mA)
Core
Material
74F106AP 1.0 45 7.96 190 0.20 1000 Phenolic
74F126AP 1.2 45 7.96 174 0.22 950 Phenolic
74F156AP 1.5 45 7.96 160 0.25 900 Phenolic
74F186AP 1.8 45 7.96 144 0.28 850 Phenolic
74F226AP 2.2 45 7.96 132 0.30 800 Phenolic
±10%
74F276AP 2.7 45 7.96 119 0.50 700 Phenolic
74F336AP 3.3 45 7.96 108 0.70 600 Phenolic
74F396AP 3.9 45 7.96 101 0.80 500 Phenolic
74F476AP 4.7 50 7.96 91 1.0 400 Phenolic
74F566AP 5.6 50 7.96 83 1.8 350 Phenolic
74F686AP 6.8 50 7.96 75 1.85 300 Phenolic
74F826AP 8.2 50 7.96 68 1.9 275 Phenolic
74F105AP 10 50 7.96 62 3.0 250 Phenolic
74F125AP 12 30 2.52 57 3.6 200 Phenolic
74F155AP 15 30 2.52 51 6.0 150 Phenolic
74F185AP 18 30 2.52 46 7.5 100 Phenolic
74F225AI 22 85 2.52 28 2.0 500 Iron
74F275AI 27 80 2.52 26 1.85 450 Iron
74F335AI 33 80 2.52 24 2.0 450 Iron
74F395AI 39 90 2.52 21 2.6 400 Iron
74F475AI 47 90 2.52 19 3.5 350 Iron
74F565AI 56 90 2.52 18 3.75 300 Iron
74F685AI 68 90 2.52 17 4.0 250 Iron
74F825AI 82 100 2.52 15 5.1 200 Iron
74F104AI 100 100 2.52 14 6.0 100 Iron
Also available as RoHS compliant.
1.5 0.5
0.20 Max.
Dia.
0.032 for 1-18uh
0.029 for 22-100uh
Dimensions: Inches
