component

HT331VRTZ

Public Made by Adom

by adom

HTCSEMI Comparators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentop-amp-cmpht331vrtz
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs ht331vrtz: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers ht331vrtz: viewers · Ray 1mo ago
ht331vrtz-etched.fit.json ht331vrtz: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ht331vrtz-etched.glb ht331vrtz: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ht331vrtz-etched.step ht331vrtz: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
ht331vrtz.glb Publish 0.1.0 · Ray 1mo ago
ht331vrtz.kicad_mod Publish 0.1.0 · Ray 1mo ago
ht331vrtz.kicad_sym Publish 0.1.0 · Ray 1mo ago
ht331vrtz.lbr Publish 0.1.0 · Ray 1mo ago
ht331vrtz.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 12d ago
README.md ht331vrtz: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 18d ago

HT331VRTZ

HTCSEMI · Comparators · SOT-23-5

HT331VRTZ from HTCSEMI, 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 comparator input. Common-mode range GND+0.2 V to VCC-0.2 V. Input offset +/-5 mV max, internal hysteresis ~5 mV typ, input resistance >100 GOhm.
2 GND power_in Ground / negative supply reference for the comparator.
3 -IN input Inverting comparator input. Common-mode range GND+0.2 V to VCC-0.2 V. Datasheet pin-description table mislabels this as '+VIN inverting input'; the pin-configuration diagram (SOT23-5 top view) clearly shows pin 3 as -IN.
4 OUTPUT output Comparator digital output, rail-to-rail CMOS/TTL-compatible Class-AB push-pull. VOH >= VCC-0.3 V, VOL <= GND+0.3 V. Short-circuit current to VDD ~25 mA. Rise ~35 ns, fall ~28 ns, propagation delay ~140 ns at 100 mV overdrive.
5 VCC power_in Positive supply. Operating range 2.7-5.5 V (absolute max 5.5 V). Quiescent current ~200 uA. PSRR ~63 dB.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • HT331VRTZ
  • HT331VRTZRMZ
  • HT331VRTZRZ

CAD (KiCad official)

  • Symbol: HT331VRTZ
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ht331vrtz-etched.step / ht331vrtz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht331vrtz.step / ht331vrtz.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ht331vrtz.step 85 KB You want the bare part, or you mark your own boards.
ht331vrtz-etched.step 1.5 MB You want the part with HT331VRTZ already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 389 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: HTCSEMI datasheet (7 pp, sha256 a9fab51f2b1754c2, 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