最近搜索

    三极管

    双极型晶体管是什么?

    双极型晶体管,也叫双极性晶体管、晶体三极管,是一种具有三个终端的电子器件,由三部分掺杂程度不同的半导体制成,晶体管中的电荷流动主要是由于载流子在PN结处的扩散作用和漂移运动。

    双极型晶体管的应用

    双极型晶体管能够放大信号,并且具有较好的功率控制、高速工作以及耐久能力,所以它常被用来构成放大器电路,或驱动扬声器、电动机等设备,并被广泛地应用于航空航天工程、医疗器械和机器人等应用产品中。

    双极型晶体管的分类

    • NPN****型晶体管:由两层N型掺杂区域和介于二者之间的一层P型掺杂半导体(基极)组成。输入到基极的微小电流将被放大,产生较大的集电极-发射极电流。当NPN型晶体管基极电压高于发射极电压,并且集电极电压高于基极电压,则晶体管处于正向放大状态。在这一状态中,晶体管集电极和发射极之间存在电流。被放大的电流,是发射极注入到基极区域的电子(在基极区域为少数载流子),在电场的推动下漂移到集电极的结果。由于电子迁移率比空穴迁移率更高,因此现在使用的大多数双极性晶体管为NPN型。
    • PNP****型晶体管:由两层P型掺杂区域和介于二者之间的一层N型掺杂半导体组成。流经基极的微小电流可以在发射极端得到放大。也就是说,当PNP型晶体管的基极电压低于发射极时,集电极电压低于基极,晶体管处于正向放大区。

    RS为您提供了不同品牌的双极型晶体管,如onsemiNexperiaDiodesZetexROHMInfineon等多款不同规格、型号的产品供您挑选,从而满足不同的应用场景需求。

    欢迎查看和订购RS的双极型晶体管及相关产品,订购现货24小时内发货,线上下单满额免运费。

    1 / 1
    2 产品
    已选择条件 (1)
    品牌移除
    Texas Instruments
    移除所有

    DiodesZetex (578)

    Fairchild Semiconductor (1)

    Infineon (155)

    Magnatec (1)

    Microchip (12)

    Nexperia (863)

    NXP (1)

    ON Semiconductor (1)

    onsemi (1248)

    Renesas Electronics (4)

    ROHM (417)

    Semelab (1)

    STMicroelectronics (152)

    Taiwan Semiconductor (15)

    Texas Instruments (2)

    Toshiba (31)

    WeEn Semiconductors Co., Ltd (3)

    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    Due to your selection of other attributes some options are not available - amend or clear filters to allow selection of these options.
    2 产品
    单价(不含税)
    品牌
    晶体管类型
    最大直流集电极电流
    最大集电极-发射极电压
    封装类型
    安装类型
    最大功率耗散
    最小直流电流增益
    晶体管配置
    最大集电极-基极电压
    最大发射极-基极电压
    最大工作频率
    引脚数目
    每片芯片元件数目
    产品详述
    单价(不含税)
    品牌
    晶体管类型
    最大直流集电极电流
    最大集电极-发射极电压
    封装类型
    安装类型
    最大功率耗散
    最小直流电流增益
    晶体管配置
    最大集电极-基极电压
    最大发射极-基极电压
    最大工作频率
    引脚数目
    每片芯片元件数目
    • RS 库存编号 100-0711
    • 制造商零件编号 LM395T/NOPB
    毎管:45 个
    RMB23.118
    Texas Instruments
    NPN
    1 A
    36 V
    TO-220
    通孔
    -
    -
    36 V
    36 V
    -
    3
    1
    • RS 库存编号 460-825
    • 制造商零件编号 LM395T/NOPB
    RMB25.10
    Texas Instruments
    NPN
    1 A
    36 V
    TO-220
    通孔
    -
    -
    36 V
    36 V
    -
    3
    1
    每页结果数