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docs cos8051sot: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
cos8051sot-etched.fit.json cos8051sot: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
cos8051sot-etched.glb cos8051sot: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
cos8051sot-etched.step cos8051sot: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
cos8051sot.glb Publish 0.1.0 · Ray 2mo ago
cos8051sot.kicad_mod Publish 0.1.0 · Ray 2mo ago
cos8051sot.kicad_sym Publish 0.1.0 · Ray 2mo ago
cos8051sot.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray 2mo ago
cos8051sot.step Publish 0.1.0 · Ray 2mo ago
package.json Publish 0.2.0 · Ray 2mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
page.json cos8051sot: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 28d ago
README.md cos8051sot: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

COS8051SOT

COSINE · Operational Amplifier · SOT23-5

COS8051SOT from COSINE, in a SOT23-5. 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 OUT output Amplifier output. Output voltage range extends to within millivolts of each supply rail (10mV @ RL=10kΩ, 25mV @ RL=2kΩ, 200mV @ RL=150Ω). Short-circuit source current 100mA, sink 120mA.
2 -Vs power_in Negative power supply or ground. For single-supply use, tie to GND; for dual-supply use, bypass to ground with a 0.1µF ceramic capacitor placed close to the pin. Supply range +Vs to -Vs is 2.5V to 5.5V.
3 +IN input Non-inverting input of the amplifier. Common-mode voltage range is -Vs to +Vs (rail-to-rail). Absolute voltage range on this pin is -Vs -0.3V to +Vs +0.3V; input bias current typically ±3pA.
4 -IN input Inverting input of the amplifier. Voltage range on this pin is -Vs -0.3V to +Vs +0.3V (diode-clamped to supplies, limit current to 10mA if driven beyond rails). Input offset voltage typ ±2mV, max ±20mV.
5 +Vs power_in Positive power supply. Operating range 2.5V to 5.5V (single supply) or ±1.25V to ±2.25V (dual supply). Bypass to ground with a 0.1µF ceramic capacitor placed as close to the pin as possible. Quiescent current typ 2.6mA at VS=5V.

Key specifications

Parameter Value
Manufacturer COSINE
Package SOT23-5
Category Op-amp/Cmp
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • COS8051SOT
  • COS8051SOTSR
  • COS8051SOTMR
  • COS8051SOTSOP
  • COS8051SOTTR

CAD (KiCad official)

  • Symbol: COS8051SOT
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT23-5 (KiCad packages3D, STEP)
  • 3D model files: cos8051sot-etched.step / cos8051sot-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cos8051sot.step / cos8051sot.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cos8051sot.step 85 KB You want the bare part, or you mark your own boards.
cos8051sot-etched.step 2.3 MB You want the part with COS8051SOT already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 530 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: COSINE datasheet (10 pp, sha256 59babd131cdd748c, 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