component

TP431R250S3-1

Public Made by Adom

by adom

TECH PUBLIC Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TP431R250S3-1

TECH PUBLIC · Voltage Reference · SOT-23

TP431R250S3-1 from TECH PUBLIC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 REF input Reference input that sets the cathode voltage through an external R1/R2 divider (VREF 2.500 V typ, input current 0.7 uA typ, 4.0 uA max, 10 mA absolute max).
2 CATHODE passive Cathode of the adjustable shunt regulator, rated 36 V maximum with 1.0 to 100 mA continuous cathode current (-100 to +150 mA absolute maximum range).
3 ANODE power_in Anode of the shunt regulator, normally connected to ground, and the reference for all voltage ratings.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: TP431R250S3-1
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tp431r250s3-1-etched.step / tp431r250s3-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tp431r250s3-1.step / tp431r250s3-1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: TECH PUBLIC datasheet (5 pp, sha256 e354463dc34c8a6c, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF