2N4857UB数据手册分立半导体产品的晶体管-JFET规格书PDF

描述 Description

This specification covers the performance requirements for N-channel, depletion mode, silicon 2N4856 through 2N4861 J-FET (Junction Field Effect transistor). Four levels of product assurance are provided for each device (JAN, JANTX, JANTXV, and JANS) as specified in MIL-PRF-19500/385. RHA level designators \"M\", \"D\", \"P\", \"L\", \"R\", \"F\", \"G\" and \"H\" are appended to the device prefix to identify devices, which have passed RHA requirements. The device package outlines are as follows: TO-18 (no suffix) and surface mount (UB suffix) for all encapsulated device types.

简介

2N4857UB属于分立半导体产品的晶体管-JFET。由制造生产的2N4857UB晶体管 - JFET结栅场效应晶体管 (JFET) 是用作电子控制开关、放大器或电压控制电阻器的器件。在栅极端子与源极端子之间施加适当极性的电势差就会增加电流流动的阻力，这意味着源极端子与漏极端子之间通道中流动的电流会更少。由于电荷流过源极与漏极端子之间的半导体通道，因此 JFET 不需要偏置电流。