Diodes Incorporated
SOT23

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ZR431

LOW Knee CURRENT 2.5 ADJUSTABLE 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.

Feature(s)

  • Surface-Mount SOT223 and SOT23 Packages
  • 2%, 1% and 0.5% Tolerance
  • Temperature Coefficient 72ppm/°C
  • Temperature Compensated for Operation
  • Over the Full Temperature Range
  • Programmable Output Voltage
  • 50μA to 100mA Current Sink Capability
  • Low Output Noise
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

  • Shunt regulators
  • Series regulators
  • Voltage monitors
  • Overvoltage/undervoltage protections
  • Switch mode power supplies

Product Specifications

Product Parameters

Type Shunt regulator
Compliance (Only Automotive supports PPAP) Standard
AEC Qualified No
ReferenceVoltage (V) 2.5 V
Tolerance (%) 2, 1, 0.5 %
Maximum Input Voltage (V) 20 V
Sink Current (mA) 100 mA
Minimum Cathode Current for Regulation Typ (µA) 50 µA
Typical Temperature Coefficient (ppm/°C) 26 ppm/°C
Maximum Slope Resistance (Ω) 0.75 Ω
Operating Ambient Temperature Range (°C) -40 to 125 °C

Related Content

Packages

Technical Documents

SPICE Model

Application Notes

Design tool model software

ICP Reports

Recommended Soldering Techniques

TN1.pdf

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-2642 2023-09-05 2024-03-05 Device End of Life (EOL)