# GH1321LUA

**GoChip Elec Tech Shanghai** · Linear Hall Sensors · TO-92S

GH1321LUA from GoChip Elec Tech Shanghai, in a TO-92S. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Vcc | power_in | Supply voltage pin, with the datasheet giving an operating supply range of 3.0 V to 7.5 V for the GH1321 variant. |
| 2 | Gnd | power_in | Ground pin, described in the datasheet only as "低" (low) with no further limit or function stated. |
| 3 | Vout | output | Ratiometric analog output that follows the supply voltage, with output voltage typically spanning 0.1 V to (VCC - 0.1) V (minimum 0.2 V to (VCC - 0.2) V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GoChip Elec Tech Shanghai |
| Package | TO-92S |
| Category | Magnetic Sensors |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage (VCC), GH1321 | VCC | 3 |  | 7.5 | V |  | 4 |
| Supply current (ICC), GH1321 | ICC |  | 5 | 8.7 | mA | Typical value test conditions: Vcc=5V, TA=25℃ | 4 |
| Output current, minimum source |  | 1 |  |  | mA | VCC>4.5V | 4 |
| Output current, minimum sink |  | 0.6 |  |  | mA | VCC>4.5V | 4 |
| Output current, minimum sink |  | 1 |  |  | mA | VCC>5.0V | 4 |
| Output voltage range, minimum (low end; high end printed as VCC-0.2 V) |  | 0.2 |  |  | V |  | 4 |
| Zero-point voltage (2.50 V ± 0.075 V; min/max are deviations from typ) |  | -0.075 | 2.5 | 0.075 | V | B=0Gs, VCC=5V | 4 |
| Sensitivity (5 mV/G ± 0.25 mV/G; min/max are deviations from typ) |  | -0.25 | 5 | 0.25 | mV/G | VCC=5V | 4 |
| Linearity error (% of full scale), typ -1.00 %, maximum -1.50 % |  |  | -1 | -1.5 | % |  | 4 |
| Magnetic field range (typ ±420 GS; minimum ±370 GS) |  | 370 | 420 |  | GS |  | 4 |
| Operating temperature range (L grade) |  | -40 |  | 150 | ℃ |  | 2 |

## CAD (KiCad official)

- Symbol: `GH1321LUA`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files: `gh1321lua-etched.step` / `gh1321lua-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gh1321lua.step` / `gh1321lua.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GoChip Elec Tech Shanghai datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905705671962624) (7 pp, sha256 `9d5ba351993065c1`, retrieved 2026-10-17, 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:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/gh1321lua-datasheet.pdf)