HX6639IUA-A

@@ -0,0 +1,50 @@+# HX6639IUA-A++**HUAXIN** · Hall Sensor · TO-92S++HX6639IUA-A from HUAXIN, in a TO-92S. 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 | VDD | power_in | Power supply input. Operating range 2.8 V to 6.0 V (absolute max 8 V); typical supply current 3.3 mA at 5 V. Bypass with a 1 nF/10 V decoupling capacitor to GND per the application diagram. |+| 2 | GND | power_in | Ground reference. Must be tied solidly to the supply ground return. |+| 3 | OUTPUT | output | Push-pull analog output; no pull-up required. Quiescent output equals VDD/2 at 0 Gs (VNULL ≈ 2.5 V at 5 V). A south-pole field raises Vout above VDD/2 (up to ~4.9 V at max range), a north-pole field lowers it (down to ~0.01 V); sensitivity 4.0 mV/Gs over ±600 Gs. Drive capability 1.5 mA typical; absolute-max output current 20 mA. A 10 nF/10 V output filter capacitor to GND is recommended. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HUAXIN |+| Package | TO-92S |+| Category | Sensor |+| Pins | 3 |++## Ordering variants++- `HX6639IUA-AIUA-A`+- `HX6639IUA-AIUA-B`+- `HX6639IUA-AIUA-C`+- `HX6639IUA-AIUA-D`+- `HX6639IUA-AISO-A`+- `HX6639IUA-AISO-B`+- `HX6639IUA-AISO-C`+- `HX6639IUA-AISO-D`++## CAD (KiCad official)++- Symbol: `HX6639IUA-A`+- Footprint: `Package_TO_SOT_THT:TO-92_Inline`+- 3D model: TO-92S (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HUAXIN datasheet](docs/hx6639iua-a-datasheet.pdf) (13 pp, sha256 `b848aed2dc79da33`, 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](docs/hx6639iua-a-datasheet.pdf)

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