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HT6873B5SPNR

Public Made by Adom

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Jiaxing Heroic Elec Tech HT6873 Audio Power OpAmps, SOP-8. 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 ht6873b5spnr: 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
ht6873b5spnr-etched.fit.json ht6873b5spnr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ht6873b5spnr-etched.glb ht6873b5spnr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ht6873b5spnr-etched.step ht6873b5spnr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ht6873b5spnr.glb Publish 0.1.0 · Ray 1mo ago
ht6873b5spnr.kicad_mod Publish 0.1.0 · Ray 1mo ago
ht6873b5spnr.kicad_sym Publish 0.1.0 · Ray 1mo ago
ht6873b5spnr.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 -> 8 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
ht6873b5spnr.step Publish 0.1.0 · 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 ht6873b5spnr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 18h ago
README.md ht6873b5spnr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 19d ago

HT6873B5SPNR

Jiaxing Heroic Elec Tech HT6873 · Audio Power OpAmps · SOP-8

HT6873B5SPNR from Jiaxing Heroic Elec Tech HT6873, in a SOP-8. 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 CTRL input Shutdown and ACF mode control terminal. Voltage on CTRL selects operating mode: ≥2.00 V = ACF-Off, 1.55-1.85 V = ACF-1 (~3% max THD+N), 1.10-1.40 V = ACF-2 (~10% max THD+N), and ≤0.30 V = Shutdown. Typically driven from VDD via a switch with an external pull-down resistor (RPD).
2 BYPASS passive Analog reference / mid-supply bypass terminal. Nominal voltage is VDD/2. Bypass to GND with a 1 µF capacitor (CB) for PSRR and low-noise performance.
3 IN- input Negative differential audio input. AC-couple through CIN (1 µF) and series RIN (12 kΩ) to the source (or to ground for single-ended input).
4 IN+ input Positive differential audio input. AC-couple through CIN (1 µF) and series RIN (12 kΩ) to the audio source. Voltage gain Av = 25.5 dB with RIN = 12 kΩ.
5 OUT+ output Positive Class-D BTL output. Connects directly to one speaker terminal (filter-less). Switching carrier is ~470 kHz PWM.
6 VDD power_in Power supply input. Recommended 2.5 V to 6 V (typ. 5 V); absolute max 6.5 V. Decouple with 220 µF (CS2) bulk and 1 µF (CS1) ceramic to GND close to the pin.
7 GND power_in Device ground / VSS. Common return for power supply, input coupling, and CTRL pull-down.
8 OUT- output Negative Class-D BTL output. Connects directly to the other speaker terminal (filter-less). Together with OUT+ forms the bridge-tied load driving the speaker.

Key specifications

Parameter Value
Manufacturer Jiaxing Heroic Elec Tech HT6873
Package SOP-8
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • HT6873B5SPNT
  • HT6873B5SPNR
  • HT6873B5SPET
  • HT6873B5SPER

CAD (KiCad official)

  • Symbol: HT6873B5SPNR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ht6873b5spnr-etched.step / ht6873b5spnr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht6873b5spnr.step / ht6873b5spnr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ht6873b5spnr.step 122 KB You want the bare part, or you mark your own boards.
ht6873b5spnr-etched.step 2.7 MB You want the part with HT6873B5SPNR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 648 faces against 147 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: Jiaxing Heroic Elec Tech HT6873 datasheet (16 pp, sha256 1e59a0341bfd7353, 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