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CBM809RST3

Public Made by Adom

by adom

Corebai Microelectronics Monitors & Reset Circuits, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icscbm809rst3factory-2.0.0extractor-text

Verified CBM809RST3

by Ray · last 12 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

12 Nov 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: CBM809RST3 · SOT-23-3 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 13-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-23-3
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-deljadi7/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.10)
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 17 kB, viewers/symbol.html 7 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ cbm809rst3.kicad_sym✓ cbm809rst3.kicad_mod✓ cbm809rst3.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

CBM809RST3

Corebai Microelectronics · Monitors & Reset Circuits · SOT-23-3

CBM809RST3 from Corebai Microelectronics, in a SOT-23-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

Pinout

Pin Name Type Function
1 GND power_in Ground reference; all signals are referenced to ground (0 V).
2 RESET output Active-low push-pull reset output: it is asserted low when VCC falls below the reset threshold and stays low for 240 ms typical after VCC rises above the threshold.
3 VCC power_in Monitored supply voltage input; the reset threshold options range from 2.32 V to 4.63 V depending on the suffix.

Key specifications

Parameter Value
Manufacturer Corebai Microelectronics
Package SOT-23-3
Category Power Management ICs
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage range 1 5.5 V 4
Supply current 17 30 µA VCC < 3.6V, CBM8XXR/S/T/Z 4
Reset threshold VRST 2.59 2.63 2.66 V CBM803R/CBM809R/CBM810R 4
Reset pulse width 140 240 460 ms 4
RESET output low voltage VOL 0.3 V VCC = VTH min, ISINK = 1.2 mA, CBM803R/S/T/Z, CBM809R/S/T/Z 4
RESET output high voltage VOH 0.8 VCC VCC > VTH max, ISOURCE = 500 µA, CBM809R/S/T/Z 4
Supply voltage (VCC) absolute maximum VCC -0.3 6 V 5
RESET (push-pull) voltage -0.3 V RESET push-pull; upper limit printed as VCC+0.5V 5
Input current (VCC) 20 mA 5
Output current (RESET, RESET) 20 mA 5
Rise rate VCC 100 V/µs 5
Storage temperature range -65 150 °C 5
Lead temperature (soldering, 10 sec) 300 °C 10 sec soldering 5
Vapor phase soldering 215 °C 60 sec 5
Infrared soldering 220 °C 15 sec 5
Thermal resistance junction-to-ambient (θJA) θJA 270 °C/W SOT-23 package 5
Operating ambient temperature range TA -40 85 °C Ordering table temperature range for CBM809RST3 12

CAD (land: KiCad; 3D: generated from the datasheet)

  • Symbol: CBM809RST3
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3, generated on the KiCad land (body 1.3 x 2.92 mm, terminals on the pads, 1.0050000000000001 mm tall, datasheet A, midpoint of min and max). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
  • 3D model files: cbm809rst3-etched.step / cbm809rst3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cbm809rst3.step / cbm809rst3.glb are the bare package body.

Provenance

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

  • Datasheet: Corebai Microelectronics datasheet (13 pp, sha256 185a6d7df019adba, retrieved 2026-11-12, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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: land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

Datasheet PDF