# GH1104

**GoChip Elec Tech Shanghai** · Hall Switches · TO-92S

GH1104 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 | VDD | power_in | Supply voltage pin; the datasheet gives an operating range of 4.5 V to 24 V for the E grade and 3.8 V to 30 V for the L grade, with an absolute maximum supply of -30 V to +40 V. |
| 2 | GND | power_in | Ground reference pin. |
| 3 | VOUT | output | Open-collector output that requires an external pull-up resistor; the datasheet limits output low current IOL to 50 mA and output reverse breakdown voltage VCE to -40 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, 44E variant (normal operation) | Vcc（44E） | 4.5 |  | 24 | V | 正常工作 | 4 |
| Supply voltage, 44L variant (normal operation) | Vcc (44L） | 3.8 |  | 30 | V | 正常工作 | 4 |
| Output low voltage | VOL |  | 150 | 250 | mV | Iout=25mA B>BOP | 4 |
| Output low voltage | VOL |  | 350 | 500 | mV | Iout=45mA B>BOP | 4 |
| Output high-level leakage current | IOH |  | 0.1 | 10 | μA | Vout=30V B<BRP | 4 |
| Supply current | ICC |  | 4 | 10 | mA | 输出开路 | 4 |
| Operating point | BOP | 7 |  | 25 | mT |  | 4 |
| Release point | BRP | 5 |  | 23 | mT |  | 4 |
| Hysteresis | BHYS | 2 | 5.5 | 8 | mT |  | 4 |
| Supply voltage | Vcc | -30 |  | 40 | V |  | 4 |
| Output reverse breakdown voltage | VCE | -40 |  |  | V |  | 4 |
| Output low-level current | IOL |  |  | 50 | mA |  | 4 |
| Maximum allowable power dissipation | PD |  |  | 450 | mW |  | 4 |
| Operating temperature range, 44E variant | To | -40 |  | 85 | ℃ | 44E | 4 |
| Operating temperature range, 44L variant | To | -40 |  | 150 | ℃ | 44L | 4 |
| Maximum junction temperature | TJ |  |  | 150 | ℃ |  | 4 |
| Storage temperature range | TS | -65 |  | 170 | ℃ |  | 4 |

## CAD (KiCad official)

- Symbol: `GH1104`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files: `gh1104-etched.step` / `gh1104-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gh1104.step` / `gh1104.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/8588891970211495936) (7 pp, sha256 `062227ac149e6749`, retrieved 2026-10-20, 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/gh1104-datasheet.pdf)