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LM321S5

Public Made by Adom

by adom

TECH PUBLIC Operational Amplifier, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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lm321s5-etched.step lm321s5: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wit… · Ray 4d ago
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package.json lm321s5: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wit… · Ray 4d ago
page.json lm321s5: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wit… · Ray 4d ago
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LM321S5

TECH PUBLIC · Operational Amplifier · SOT-23-5

LM321S5 from TECH PUBLIC, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 +IN input Non-inverting input; common-mode range is 0 to Vcc-1.5V (absolute max -0.3V to Vcc).
2 -Vs power_in Negative supply (ground in single-supply use); split supplies are allowed with 3V to 36V total difference, absolute max ±20V.
3 -IN input Inverting input; common-mode range is 0 to Vcc-1.5V and differential input voltage is limited to ±20V.
4 OUT output Amplifier output with swing of 0V to Vcc-1.5V and short-circuit protection (continuous short-circuit duration).
5 +Vs power_in Positive supply, operating range 3V to 36V (absolute max 40V single supply).

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23-5
Category Amplifiers/Comparators
Pins 5

CAD (KiCad official)

  • Symbol: LM321S5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lm321s5-etched.step / lm321s5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm321s5.step / lm321s5.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (6 pp, sha256 fccd91d2566d8cb4, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-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: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF