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HX811R

Public Made by Adom

by adom

HX hengjiaxing Supervisor and Reset ICs, SOT-143. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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HX811R

HX hengjiaxing · Supervisor and Reset ICs · SOT-143

HX811R from HX hengjiaxing, in a SOT-143. 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 GND power_in Ground / negative supply return (电源负极端). 0 V reference for VCC, MR, and RESET.
2 RESET output Active-low reset output (复位输出端, RESET with overbar). Drives low when VCC < Vth (2.63 V for HX811R) or when MR is low; returns high after the Trp reset delay (typ. 500 ms). VOL ≤ 0.5 V at ISINK = 3.2 mA; VOH ≥ 0.8·VCC at ISOURCE = 500 µA.
3 MR input Active-low manual-reset / enable input (使能控制端, MR with overbar). Pulling MR low forces RESET low. VIH ≥ 0.7·VCC, VIL ≤ 0.2·VCC; minimum pulse width tMR = 10 µs. Enable pull current IMR up to 25 µA at VCC=6V.
4 VCC power_in Positive supply input (电源正极端). Operating range 1.0 V to 6.0 V (abs max 6.5 V). Monitored against internal Vth = 2.63 V (HX811R) to generate the reset signal. Quiescent ICCH ≈ 1 µA (typ), max 5 µA.

Key specifications

Parameter Value
Manufacturer HX hengjiaxing
Package SOT-143
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • HX811R

CAD (KiCad official)

  • Symbol: HX811R
  • Footprint: Package_TO_SOT_SMD:SOT-143
  • 3D model: SOT-143 (KiCad packages3D, STEP)
  • 3D model files: hx811r-etched.step / hx811r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hx811r.step / hx811r.glb are the bare package body.

Provenance

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

  • Datasheet: HX hengjiaxing datasheet (3 pp, sha256 4238571228a83ddb, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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