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ZR431

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

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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.

Application(s)

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

    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
  • Product Specifications

    Product Parameters

    Compliance (Only Automotive supports PPAP) Standard
    Qualified to AEC-Q10x 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

    Our shunt voltage regulator portfolio includes 2.5V, 1.24V, and 0.6V reference voltage devices covering consumer, computing, industrial, and automotive applications.

    It includes industry standard TL431 and TL432 equivalents, as well as footprint compatible, very low minimum (knee) current for latest low standby power isolated power supplies. Additionally, it includes a well enhanced operating voltage range TLV431 (1.24V) equivalents. All of the 2.5V and 1.24V support operating temperatures up to 125°C as standard, therefore reducing the number of variants that need to be qualified and stocked.

    Automotive-compliant variants are available which are qualified to AEC-Q100 Grade 1 in IATF 16949 facilities supporting PPAP documentation.

    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 747 9/17/2021 England Buy Now
    Farnell, An Avnet Company 747 9/17/2021 England Buy Now
    Request Sample
    ZR431F005TA

    ZR431F005TA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Avnet EU 78000 9/19/2021 Germany Buy Now
    Arrow Electronics 2960 9/19/2021 United States Buy Now
    Arrow Electronics 3000 9/19/2021 United States Buy Now
    Arrow/Components Agent Ltd. 87000 9/19/2021 Hong Kong Buy Now
    Digi-Key Electronics 90910 9/19/2021 Europe, Asia, North America Buy Now
    Mouser Electronics Inc. 2575 9/19/2021 South America, North America, Asia, Europe, Middle East Buy Now
    RS Components 2195 9/19/2021 England Buy Now
    Future Electronics - Europe 9000 9/18/2021 England Contact Sales
    Farnell, An Avnet Company 532 9/17/2021 England Buy Now
    Farnell, An Avnet Company 532 9/17/2021 England Buy Now
    Micronetics GmbH 3000 9/13/2021 Germany Contact Sales
    Request Sample
    ZR431F01TA

    ZR431F01TA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Avnet EU 471000 9/19/2021 Germany Buy Now
    Arrow Electronics 3015 9/19/2021 United States Buy Now
    Digi-Key Electronics 357280 9/19/2021 Europe, Asia, North America Buy Now
    Mouser Electronics Inc. 3371 9/19/2021 South America, North America, Asia, Europe, Middle East Buy Now
    Future Electronics - Europe 264000 9/18/2021 England Contact Sales
    Farnell, An Avnet Company 23358 9/17/2021 England Buy Now
    Farnell, An Avnet Company 23358 9/17/2021 England Buy Now
    Request Sample
    ZR431FTA

    ZR431FTA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Arrow Electronics 120 9/19/2021 United States Buy Now
    RS Components 180 9/19/2021 England Buy Now
    RS Components 5300 9/19/2021 England Buy Now
    Request Sample
    ZR431GTA

    ZR431GTA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Arrow Electronics 43 9/19/2021 United States Buy Now
    Arrow Electronics Central EU 2000 9/19/2021 Europe Buy Now
    Mouser Electronics Inc. 980 9/19/2021 South America, North America, Asia, Europe, Middle East Buy Now
    Future Electronics 1000 9/18/2021 Canada Buy Now
    Farnell, An Avnet Company 596 9/17/2021 England Buy Now
    Farnell, An Avnet Company 596 9/17/2021 England Buy Now
    Micronetics GmbH 4800 9/13/2021 Germany Contact Sales
    Request Sample
    ZR431LF01TA

    ZR431LF01TA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Farnell, An Avnet Company 1666 9/17/2021 England Buy Now
    Farnell, An Avnet Company 1666 9/17/2021 England Buy Now
    Request Sample
    ZR431LF02TA

    ZR431LF02TA

    Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
    Arrow Electronics 548 9/19/2021 United States Buy Now
    Digi-Key Electronics 2813 9/19/2021 Europe, Asia, North America Buy Now
    Mouser Electronics Inc. 3302 9/19/2021 South America, North America, Asia, Europe, Middle East Buy Now
    RS Components 10550 9/19/2021 England Buy Now
    Micronetics GmbH 2700 9/13/2021 Germany Contact Sales
    Request Sample

    PCNs

    Product Change Notices

    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