2SK1056, 2SK1057, 2SK1058 Forward Transfer Admittance vs. Frequency Forward Transfer Admittance yfs (S) Input Capacitance vs. Gate Source Voltage Input Capacitance Ciss (pF) 1000 500 200 VDS = 10 V f = 1 MHz 100 0 –2 –4 –6 –8 –10 3.0 1.0 0.3 0.1 0.03 TC = 25°C VDS = 10 V ID = 2 A 0.01 0.003 10 k 30 k 100 k 300 k 1 M 3M 10 M Frequency f (Hz) Gate to Source Voltage VGS (V) Switching Time vs. Drain Current Switching Time ton, toff (ns) 500 ton 200 100 50 toff 20 10 5 0.1 0.2 0.5 1.0 5 2 10 Drain Current ID (A) Switching Time Test Circuit Waveforms Output 90 % R L= 2 Ω Input Input 10 % t on PW = 50 µs duty ratio =1% 50 Ω 10 % 20 V Output 90 % Rev.2.00 Sep 07, 2005 page 4 of 5 t off
