Common Field Effect Transistors

Last Update Time: 2018-12-25 13:29:10

1. Low power field effect transistor with high input impedance and small driving current, the utility model has the characteristics of low noise, which is suitable for the pre-voltage amplifying circuit, the impedance conversion circuit, the oscillating circuit and the high speed switch circuit.

 

2. The double-gate field-effect transistor has a source, a drain and two gates, of which the two gates are mutually independent, it can be used as high frequency amplifier, mixer, demodulator and gain control amplifier.

 

3.The sheet type field effect transistor has the characteristics of high impedance, low noise, large dynamic range and small cross modulation distortion. It is also divided into junction field effect transistor (JFET) and insulated gate field-effect transistor (MOSFET). Among them, JFET is mainly used for small signal occasions, MOSFET is used for small signal occasions, as well as for power amplification or driving occasions.

 

(1)Flaky JFET

Flake JFET has MMBFJ309IJ1 (N channel) in VHF/UHF RF amplifier.

The model code is 6U),

For general purpose small signal amplification, there are MMBF54 and S7LT1 (N channel) and so on. They are commonly used as impedance converters or preamplifiers.

 

(2) Flaky MOSFET

The biggest feature of the flaky MOSFET is that it has excellent switching characteristics, and its conduction resistance is very low, usually a few ohms to several ohms, and only a few milliohms to dozens of milliohms.

 Therefore, the tube consumption is small, and the small size flake device has larger power output. At present, the power MOSFET is widely used, which is often used as driver, DC/DC converter, servo / stepping motor control, power load switch, solid state relay and charger control.

 

If you want to know more, our website has product specifications for the FETs, you can go to ALLICDATA ELECTRONICS LIMITED to get more information