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Key specifications
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HX809R-2.63V

HX hengjiaxing HX809R 2 63V · Supervisor and Reset ICs · SOT-23-3

HX809R-2.63V from HX hengjiaxing HX809R 2 63V, in a SOT-23-3. 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	Chip ground / negative supply return. Connect to system ground.
2	RESET	output	Reset output. Active-low: pulled low when VCC falls below Vth (2.63 V typ. for HX809R) and released ~350 ms (typ.) after VCC returns above threshold. VOL ≤ 0.3 V at ISINK = 1.2 mA (VCC = Vth_min); VOH ≥ 0.8·VCC at ISOURCE = 500 uA (VCC > Vth_max). Absolute max output current 20 mA; output voltage range -0.3 V to VCC+0.3 V.
3	VCC	power_in	Chip supply input. Operating range 0.9 V to 6.0 V (absolute max 6 V). Static current ICC ≈ 2 uA typ. (4 uA max) at VCC = 5.5 V, no load. VCC is monitored against Vth = 2.63 V typ. to generate the RESET output. Built-in transient noise rejection on VCC.

Key specifications

Parameter	Value
Manufacturer	HX hengjiaxing HX809R 2 63V
Package	SOT-23-3
Category	PMIC
Pins	3

CAD (KiCad official)

Symbol: HX809R-2.63V
Footprint: Package_TO_SOT_SMD:SOT-23-3
3D model: SOT-23-3 (KiCad packages3D, STEP)

Provenance

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

Datasheet: HX hengjiaxing HX809R 2 63V datasheet (None pp, sha256 4867890d2eebb1ee, 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

Symbol & Footprint

Schematic Symbol

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PCB Footprint