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Contents

README

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BL8518CB3TR263DC

BL Shanghai Belling · Supervisor and Reset ICs · SOT-23

BL8518CB3TR263DC from BL Shanghai Belling, 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 VSS power_in Ground reference pin. Tie to system 0 V / GND.
2 VOUT output Voltage-detection output, active-low CMOS push-pull (C suffix). Drives low (VSS) when VDD falls below the 2.63 V detector threshold, and returns high (equal to VDD) after Tdelay = 200 ms typical once VDD rises above the threshold. Output is undefined when VDD < VDDL (~0.5 V).
3 VDD power_in Supply voltage input and monitored rail. Recommended operating range 1.2 V to 6 V; absolute maximum 8 V. This is also the voltage being sensed against the internal 2.63 V threshold.

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • BL8518CB3TR263DC
  • BL8518CB3TR263DN
  • BL8518CB3TR293DC
  • BL8518CB3TR293DN
  • BL8518CB3TR263DCCB3BTR263DC
  • BL8518CB3TR263DCCB3BTR263DN
  • BL8518CB3TR263DCCB3BTR293DC
  • BL8518CB3TR263DCCB3BTR293DN

CAD (KiCad official)

  • Symbol: BL8518CB3TR263DC
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bl8518cb3tr263dc-etched.step / bl8518cb3tr263dc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl8518cb3tr263dc.step / bl8518cb3tr263dc.glb are the bare package body.

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (7 pp, sha256 4f4f63773eb3a024, 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