component

TP321-TR

Public Made by Adom

by adom

UMW Operational Amplifier, SOT-23-5. 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 tp321-tr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json tp321-tr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 20h ago
README.md tp321-tr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 19d ago
tp321-tr-etched.fit.json tp321-tr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tp321-tr-etched.glb tp321-tr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tp321-tr-etched.step tp321-tr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tp321-tr.glb Publish 0.1.0 · Ray 1mo ago
tp321-tr.kicad_mod Publish 0.1.0 · Ray 1mo ago
tp321-tr.kicad_sym Publish 0.1.0 · Ray 1mo ago
tp321-tr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 5 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
tp321-tr.step Publish 0.1.0 · Ray 1mo ago

TP321-TR

UMW · Operational Amplifier · SOT-23-5

TP321-TR from UMW, in a SOT-23-5. 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 +IN input Non-inverting analog input to the op-amp. Rail-to-rail common-mode range extending from V- - 0.1V to V+ + 0.1V; input bias current typically 10pA. Protected by ESD diodes to each supply; limit input current to <10mA if driven beyond the rails.
2 -VS power_in Negative supply rail (V-). Typically tied to ground in single-supply operation, or to the negative rail for split-supply operation. Total supply voltage (V+ to V-) must not exceed 6.6V absolute maximum; recommended range 2.1V to 6.0V.
3 -IN input Inverting analog input to the op-amp. Rail-to-rail common-mode range extending from V- - 0.1V to V+ + 0.1V; input bias current typically 10pA. Protected by ESD diodes to each supply; limit input current to <10mA if driven beyond the rails.
4 OUT output Rail-to-rail amplifier output. Output swings to within about 5mV of either supply rail into a 100kΩ load; short-circuit current ±40mA (sink or source). Indefinite short-circuit duration provided junction temperature is kept below 150°C.
5 +VS power_in Positive supply rail (V+). Operating supply range 2.1V to 6.0V (6.6V absolute max V+ to V-). Bypass locally with a low-ESR ceramic capacitor to -VS for best PSRR (typ. 90dB).

Key specifications

Parameter Value
Manufacturer UMW
Package SOT-23-5
Category Op-amp/Cmp
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TP321-TR
  • TP321-TRTP358

CAD (KiCad official)

  • Symbol: TP321-TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tp321-tr-etched.step / tp321-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tp321-tr.step / tp321-tr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
tp321-tr.step 85 KB You want the bare part, or you mark your own boards.
tp321-tr-etched.step 1.3 MB You want the part with TP321-TR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 345 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: UMW datasheet (12 pp, sha256 68ddde9e9628d435, 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