2SK543

The 2SK543 is a kind of N-Channel MOS silicon FET. It is designed for FM tuner, VHF-band amp applications. There are some features as follows: (1)low noise: NF=1.8 dB typ (f=100 MHz); (2)high power gain: PG=27 dB typ (f=100 MHz); (3)small reverse transfer capacitance: Crss=0.035 pF (VDS=10 V, f=1 MHz).

The following is the absolute maximum ratings of 2SK543 at Ta=25: (1)drain to source voltage, VDS: 25 V; (2)gate to source voltage, VGS: ±5 V; (3)drain current, ID: 3 mA; (4)allowable power dissipation, PD: 200 mW; (5)channel temperature, Tch: 125; (6)storage temperature, Tstg: -55 to +125.

The last one is the electrical characteristics of 2SK543 at Ta=25: (1)drain to source voltage at VGS=-4 V, ID=100A, VDSX: 20 V min; (2)common source gate cutoff current at VDS=0 V, VGS=±5 V, IGSS: 10 nA max; (3)drain current at VDS=10 V, VGS=0 V, IDSS: 1.2 mA min and 12 mA max; (4)gate to source cutoff voltage at VDS=10 V, ID=100A, VGS(off): -2.5 V max; (5)input capacitance at VDS=10 V, VGS=0 V, f=1 MHz, Ciss: 2.4 pF typ ; (6)reverse transfer capacitance at VDS=10 V, VGS=0 V, f=1 MHz, Crss: 0.035 pF typ.