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Image Part # Manufacturer Description Availability Pricing Quantity Surface MountNumber of TerminalsTransistor Element MaterialIhs ManufacturerNumber of ElementsOperating Temperature-MaxOperating Temperature-MinPackage Body MaterialPackage DescriptionPackage ShapePackage StylePart Life Cycle CodeRohs CodeECCN CodeTerminal PositionTerminal FormPeak Reflow Temperature (Cel)Reach Compliance CodeTime@Peak Reflow Temperature-Max (s)JESD-30 CodeQualification StatusConfigurationCase ConnectionTransistor ApplicationJEDEC-95 CodePower Dissipation-Max (Abs)Inter-base Voltage-MaxIntrinsic Stand-off Ratio-MaxIntrinsic Stand-off Ratio-MinStatic Inter-base Res-MaxStatic Inter-base Res-MinValley Point Current-MinEmitter Current-MaxPeak Point Current-Max
Texas Instruments 2N4947
Mfr. Part #
2N4947
Twicea Part #
815-374-2N4947 		Texas Instruments
UJT, TO-18
Datasheet Compare
    Min.:1
    Mult.:1
    		 NO 3 SILICON TEXAS INSTRUMENTS INC 1 200 °C -65 °C METAL CYLINDRICAL, O-MBCY-W3 ROUND CYLINDRICAL Obsolete No EAR99 BOTTOM WIRE NOT SPECIFIED not_compliant NOT SPECIFIED O-MBCY-W3 Not Qualified SINGLE BASE2 SWITCHING TO-18 0.36 W 25 V 0.69 0.51 9.1 kΩ 4 kΩ 4 mA 50 mA 2 mA
    2N4947
    2N4947

    815-374-2N4947 Texas Instruments
    RoHS :
    Package : -
    In Stock : -
    1 : -
    Texas Instruments 2N489A
    Mfr. Part #
    2N489A
    Twicea Part #
    815-374-2N489A     		Texas Instruments
    UJT, TO-5
    Datasheet Compare
      Min.:1
      Mult.:1
      		 NO 3 SILICON TEXAS INSTRUMENTS INC 1 140 °C -65 °C METAL CYLINDRICAL, O-MBCY-W3 ROUND CYLINDRICAL Obsolete No EAR99 BOTTOM WIRE NOT SPECIFIED not_compliant NOT SPECIFIED O-MBCY-W3 Not Qualified SINGLE ISOLATED SWITCHING TO-5 0.45 W 65 V 0.62 0.51 6.8 kΩ 4.7 kΩ 8 mA 70 mA 12 mA
      2N489A
      2N489A

      815-374-2N489A Texas Instruments
      RoHS :
      Package : -
      In Stock : -
      1 : -

      Discrete Semiconductor Products

      Transistors - Programmable Unijunction definition: Programmable unijunction transistor (PUT) is a three-lead electronic semiconductor device with which is similar in characteristic to unijunc... Transistors - Programmable Unijunction Product Listing: 2N4947,2N489A.Discrete Semiconductor Products type:Diodes - Zener - Single(126889),Diodes - Rectifiers - Single(107990),Transistors - FETs, MOSFETs - Single(66871),Transistors - Bipolar (BJT) - Single(41289),Diodes - Bridge Rectifiers(23480) .Transistors - Programmable Unijunction has 2 pieces of spot stock price information, you can click the "RFQ" button to confirm the inventory and price with the Twicea.