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ZHT431

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

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Description

The ZHT431 is a three terminal adjustable shunt regulator offering excellent temperature stability and output current handling capability up to 100mA. The device offers extended operating temperature range working from -55 to +125°C. The output voltage may be set to any chosen voltage between 2.5 and 20 volts by selection of two external divider resistors.

Application(s)

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

Feature(s)

  • Surface mount SOT23 package
  • 0.5%, 1% and 2% tolerance
  • Maximum temperature coefficient 67 ppm/°C
  • Temperature compensated for operation over the full temperature range
  • Programmable output voltage
  • 50μA to 100μA current sink capability
  • Low output noise
  • Wide temperature range -55 to +125°C

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) 150 mA
Minimum Cathode Current for Regulation Typ (µA) 50 µA
Maximum Slope Resistance (Ω) 0.75 Ω
Operating Ambient Temperature Range (°C) -55 to 125 °C

Related Content

Packages

Technical Documents

SPICE Model

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
ZHT431F01TA

ZHT431F01TA

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 22234 9/28/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 4041 9/28/2021 England Buy Now
Mouser Electronics Inc. 4375 9/28/2021 South America, North America, Asia, Europe, Middle East Buy Now
RS Components 2210 9/27/2021 England Buy Now
Request Sample
ZHT431F02TA

ZHT431F02TA

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 400 9/28/2021 United States Buy Now
Avnet 3000 9/28/2021 United States Buy Now
Digi-Key Electronics 6572 9/28/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 2770 9/28/2021 England Buy Now
Future Electronics - Europe 12000 9/28/2021 England Contact Sales
Mouser Electronics Inc. 3357 9/28/2021 South America, North America, Asia, Europe, Middle East Buy Now
RS Components 110 9/27/2021 England Buy Now
Request Sample
ZHT431F02TA DIODES

ZHT431F02TA DIODES

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Micronetics GmbH 6000 9/28/2021 Germany Contact Sales
Request Sample
ZHT431FMTA

ZHT431FMTA

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 59874 9/28/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 2245 9/28/2021 England Buy Now
Mouser Electronics Inc. 5176 9/28/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample

PCNs

Product Change Notices

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