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Contents

README

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ZR431F01TA-TP

TECH PUBLIC · Voltage Reference · SOT-23

ZR431F01TA-TP from TECH PUBLIC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 REF input Reference input pin. Internal error amplifier compares this pin against the internal 2.5 V bandgap; when VREF ≥ 2.5 V (typ), the cathode sinks current. Reference input current I(REF) ≈ 0.7 µA typ, 4 µA max; max continuous input current 10 mA.
2 CATHODE passive Cathode (K) terminal of the shunt regulator. Sinks the regulated current when VREF pin reaches the internal reference. Absolute max VKA = 36 V, continuous IKA range −100 to +150 mA, operating IKA 1-100 mA, dynamic impedance ZKA ≈ 0.15 Ω typ.
3 ANODE passive Anode (A) terminal of the shunt regulator; typically tied to the system ground/return. All device voltages are referenced to the anode per the datasheet's absolute maximum ratings notes.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • ZR431F01TA-TP

CAD (KiCad official)

  • Symbol: ZR431F01TA-TP
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: zr431f01ta-tp-etched.step / zr431f01ta-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); zr431f01ta-tp.step / zr431f01ta-tp.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (5 pp, sha256 7e502ee91633c8a3, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF