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Magnetic structure of the variable coil
 
Drum core structure
Drum core with windings, inductance should be adjusted by the cap shaped core outside, appliable to the frequency up to 15MHz approximately.
 
A bobbin, screw core structure
Bobbin with windings, inductance should be adjusted by the screw shaped core inside, appliable to the frequency up to 150MHz approximately.

TOKO type Magnetic structure Dimensions
(mm) max.
Inductance range Freqency range
5mm square, SMD
FSDV
Drum
5.6x5.8x5.5 L range 1µ ∼ 16mH 200kHz ∼ 15MHz
5CCE
Bobbin
5.9x6.2x6.0 L range 0.05µ ∼ 2.7µH 10MHz ∼ 150MHz
Molded coils (Structure of which stability has been raised by molding the winding part with resin)
MC152
Bobbin
5.1x7.0x5.0 L range 0.03µ ∼ 0.14µH 30MHz ∼ 150MHz
*RoHS compliant