component

BR431M

Public Made by Adom

by adom

Foshan Blue Rocket Elec Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs br431m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers br431m: viewers · Ray 1mo ago
br431m-etched.fit.json br431m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
br431m-etched.glb br431m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
br431m-etched.step br431m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
br431m.glb Publish 0.1.0 · Ray 1mo ago
br431m.kicad_mod Publish 0.1.0 · Ray 1mo ago
br431m.kicad_sym Publish 0.1.0 · Ray 1mo ago
br431m.lbr Publish 0.1.0 · Ray 1mo ago
br431m.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 12d ago
README.md br431m: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 18d ago

BR431M

Foshan Blue Rocket Elec · Voltage Reference · SOT-23

BR431M from Foshan Blue Rocket Elec, 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 R input Reference input. The internal error amplifier compares this pin against the 2.500V internal reference; typically driven from a resistor divider between cathode and anode to set the regulated cathode voltage (VKA = (1 + R1/R2)·Vref). IREF ~1 μA typical.
2 K passive Cathode. Shunt terminal that sinks the regulated current (1 mA to 100 mA operating, 100 mA absolute max). Supports VKA up to 37 V; when VREF exceeds 2.5 V the cathode conducts, clamping VKA.
3 A passive Anode. Return terminal for cathode sink current and reference; typically tied to circuit ground/common in shunt-regulator configurations.

Key specifications

Parameter Value
Manufacturer Foshan Blue Rocket Elec
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • BR431MM

CAD (KiCad official)

  • Symbol: BR431M
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: br431m-etched.step / br431m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); br431m.step / br431m.glb are the bare package body.

Provenance

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

  • Datasheet: Foshan Blue Rocket Elec datasheet (7 pp, sha256 ac51a1796cf0b933, 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