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Contents

README

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RS432BYSF3

Jiangsu RUNIC Tech · Voltage Reference · SOT-23

RS432BYSF3 from Jiangsu RUNIC Tech, 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. Threshold input relative to the common anode; the internal amplifier regulates the cathode so that VREF (≈2.5V) appears between REF and Anode. Typical reference input current 1.5µA (max 4µA).
2 CATHODE input Cathode (shunt current/voltage input). Recommended VKA from VREF up to 36V, continuous cathode current 0.5 to 100mA. Acts as the regulated shunt terminal, sinking current to maintain the programmed voltage.
3 ANODE power_in Anode / common pin, normally connected to ground. All voltages in the device specifications are with respect to this pin.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • RS432AYSF3
  • RS432BYSF3

CAD (KiCad official)

  • Symbol: RS432BYSF3
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (9 pp, sha256 8f8161e218eaee64, 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