Diodes Menu Close
Back to Voltage References

ZR431

LOW Knee CURRENT 2.5 ADJUSTABLE SHUNT REGULATOR

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The ZR431 is a three terminal adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 100mA. The output voltage may be set to any chosen voltage between 2.5 and 20 volts by selection of two external divider resistors. The devices can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance.

Feature(s)

  • Surface mount SOT223 and SOT23 packages
  • TO92 package
  • 2%, 1 % and 0.5% tolerance
  • Max. temperature coefficient 55 ppm/°C
  • Temperature compensated for operation over the full temperature range
  • Programmable output voltage
  • 50μA to 100mA current sink capability
  • Low output noise
  • Application(s)

  • Shunt regulator
  • Series regulator
  • Voltage monitor
  • Over voltage/ under voltage protection
  • Switch mode power supplies
  • Product Specifications

    Product Parameters

    Compliance (Only Automotive supports PPAP) Standard
    AEC Qualified No
    ReferenceVoltage (V) 2.5 V
    Accuracy (%) 2, 1, 0.5 %
    MaximumInput Voltage (V) 20 V
    Sink Current (mA) 100 mA
    Minimum Cathode Current for Regulation Typ (µA) 50 µA
    Maximum Slope Resistance (Ω) 0.75 Ω
    Operating Ambient Temperature Range (°C) -40 to 85 °C

    Related Content

    Packages

    Technical Documents

    SPICE Model

    Application Notes

    Design tool model software

    ICP Reports

    Recommended Soldering Techniques

    TN1.pdf

    Orderable Part Number Buy from Distributor / Contact Sales Request Samples
    ZR431F

    ZR431F

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Farnell, An Avnet Company 1972 9/30/2022 England Buy Now
    Request Sample
    ZR431F005TA

    ZR431F005TA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Arrow Electronics 63 9/30/2022 United States Buy Now
    Arrow/Components Agent Ltd. 243000 9/30/2022 Hong Kong Buy Now
    Farnell, An Avnet Company 8 9/30/2022 England Buy Now
    RS Components - Spain 86 9/30/2022 Spain Contact Sales
    RS Components - UK 86 9/30/2022 England Buy Now
    Micronetics GmbH 3000 9/26/2022 Germany Contact Sales
    Request Sample
    ZR431F01TA

    ZR431F01TA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Avnet EU 681000 9/30/2022 Germany Buy Now
    Arrow/Components Agent Ltd. 3000 9/30/2022 Hong Kong Buy Now
    Farnell, An Avnet Company 70267 9/30/2022 England Buy Now
    Future Electronics - Asia 144000 9/29/2022 Singapore Contact Sales
    Request Sample
    ZR431FTA

    ZR431FTA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    RS Components - Spain 210 9/30/2022 Spain Contact Sales
    RS Components - Spain 14350 9/30/2022 Spain Contact Sales
    RS Components - UK 210 9/30/2022 England Buy Now
    RS Components - UK 14350 9/30/2022 England Buy Now
    Future Electronics - Asia 51000 9/29/2022 Singapore Contact Sales
    Future Electronics - Europe 18000 9/29/2022 England Contact Sales
    Request Sample
    ZR431GTA

    ZR431GTA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Arrow Electronics 23 9/30/2022 United States Buy Now
    Micronetics GmbH 8800 9/26/2022 Germany Contact Sales
    Request Sample
    ZR431LF01TA

    ZR431LF01TA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Digi-Key Electronics 29093 9/29/2022 Europe, Asia, North America Buy Now
    Future Electronics - Europe 15000 9/29/2022 England Contact Sales
    Request Sample
    ZR431LF02TA

    ZR431LF02TA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Mouser Electronics Inc. 468 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
    RS Components - Spain 660 9/30/2022 Spain Contact Sales
    RS Components - UK 660 9/30/2022 England Buy Now
    Digi-Key Electronics 1 9/29/2022 Europe, Asia, North America Buy Now
    Micronetics GmbH 2700 9/26/2022 Germany Contact Sales
    Request Sample

    Product Change Notices (PCNs)

    A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

    PCN # Issue Date Implementation Date Subject
    PCN-2427 2019-10-15 2020-04-15 Device End of Life (EOL)
    PCN-2381 2018-10-25 2019-01-25 Qualification of Additional FAB & A/T Source, and/or Bill of Materials (BOM) for Select Products