g40n60, the main difference FET, power MOSFET, IGBT and FET transistor in the electrical characteristics are the following: patch FET FET 1: FET is a voltage control device, the conductive case of the tube depends the gate voltage level. Transistor is a current control device, the conductive case of the tube depends on the size of the base current. 2: FET drain-source voltage characteristic static gate voltage UGS for parametric transistor output characteristic curve to the base current Ib as the reference variable. 3: the relationship between the current IDS and the gate of FET between UGS determined by the transconductance Gm, the relationship between transistor current Ic and Ib by the amplification factor β decision. In other words, the ability to zoom with Gm measure FET amplification capability of the transistor with β measure. 4: FET input impedance big mos tube 20nm60, the input current is very small; small transistor input impedance, input current is larger when the conductive. 5: Generally less power FET mos tube 58n20, large power transistor. fqp50n06, FET, MOSFET mos tube 47n60c3, Fairchild FET when installing, note the location of the installation should be avoided near the heating element; in order to prevent pipe vibration, it is necessary to tighten up the casing pipe; pinouts in bending, should be greater than the size of 5 mm at the root, to prevent bending the pins and cause leaks and other off. Must be added to the right radiator pipe after using the VMOS. In VNF306 as an example, the installation of the pipe 140 × 140 × 4 (mm) of the radiator, the maximum power in order to achieve 30W. mos tube 20n60, are fertile Electronics (certified), mos tube provided by the Dongguan City is fertile Electronic Technology Co., Dongguan City is Wal-Electronic Technology Co., Ltd. (www.dgmydz.com) is Dongguan, FET leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Wal-electronics leader in the positive with the staff warmly welcome all inquiries negotiations to create a positive future Wal-electron better.