JFET(结栅极场效应晶体管)：
JFET是场效应晶体管，是三端器件。它的应用范围很广，可用作开关、放大器等。它分为两类：N 沟道 JFET 和 P 沟道 JFET。
MOSFET(金属-氧化物-半导体场效应晶体管)：
MOSFET 是场效应晶体管，它是具有源极 (S)、栅极 (G)、漏极 (D) 和体 (B) 端子的四端子器件。它通常分为两种基本配置：耗尽型 MOSFET 和增强型 MOSFET。
让我们看看主键和外键的区别：
| S.NO. | PRIMARY KEY | FOREIGN KEY | |||
|---|---|---|---|---|---|
| 1 | JFET(Junction Gate Field-Effect Transistor) is a three-terminal semiconductor device. | MOSFET(Metal–Oxide–Semiconductor Field-Effect Transistor) is a four-terminal semiconductor device. | |||
| 2 | It can only operates in the depletion mode. | It operates in both depletion mode and enhancement mode. | |||
| 3 | It has high input impedance on the order of 1010 ohms, therefore they are more sensitive towards input voltage signals. | It offers even higher input impedance than the JFETs, theredore they are more resistive. | |||
| 4 | It allows the gate leakage current on the order of 10^-9 A | While the gate leakage current for MOSFETs will be of the order of 10^-12 A. | |||
| 5 | It is relatively cheaper than MOSFETs | It is expensive one. | |||
| 6 | These are ideal for low noise applications. | These are mainly used for high noise applications. | |||
| 7 | These are less susceptible to damage because of the high input capacitance. | These are more susceptible to damage because of the metal oxide insulator. | 8 | Manufacturing process of JFETs is simple. | Manufacturing process of MOSFETs is complex. |