GH1881

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

GH1881 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; normal operating range is 2.8 to 24 V, with an absolute maximum rating of -0.3 to +28 V.
2	GND	power_in	Ground reference pin for the sensor IC.
3	VOUT	output	Open-drain output that requires an external pull-up resistor (820 Ω to 100 kΩ, depending on the load current needed); the output sinks up to 50 mA low-level current (IOUTL) with a 32 V off-state breakdown rating.

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 (normal operation)	VDD	2.8	12	24	V	正常工作	4
Static operating current	IDD		2	5	mA		4
Output low voltage	VOUTL		200	500	mV	IOUT=20mA，B>BOP	4
Output high leakage current	IOFF			10	µA	VOUT=24V，B<B RP	4
Output fall time	tf			0.5	µS	RL=820Ω，CL=20pF	4
Supply voltage (absolute maximum)	VDD	-0.3		28	V		4
Output breakdown voltage	VOUT(OFF)			32	V		4
Output low current	IOUTL			50	mA		4
Maximum allowable power dissipation	PD			450	mW		4
Operating temperature range	To	-40		125	℃		4
Maximum junction temperature	TJ			125	℃		4
Storage temperature range	Ts	-65		160	℃		4

CAD (KiCad official)

Symbol: GH1881
Footprint: Package_TO_SOT_THT:TO-92_Inline
3D model: TO-92S (KiCad packages3D, STEP)
3D model files: gh1881-etched.step / gh1881-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gh1881.step / gh1881.glb are the bare package body.

Provenance

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

Datasheet: GoChip Elec Tech Shanghai datasheet (9 pp, sha256 f9201ead7b206b3f, 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

# GH1881

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

GH1881 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; normal operating range is 2.8 to 24 V, with an absolute maximum rating of -0.3 to +28 V. |
| 2 | GND | power_in | Ground reference pin for the sensor IC. |
| 3 | VOUT | output | Open-drain output that requires an external pull-up resistor (820 Ω to 100 kΩ, depending on the load current needed); the output sinks up to 50 mA low-level current (IOUTL) with a 32 V off-state breakdown rating. |

## 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 (normal operation) | VDD | 2.8 | 12 | 24 | V | 正常工作 | 4 |
| Static operating current | IDD |  | 2 | 5 | mA |  | 4 |
| Output low voltage | VOUTL |  | 200 | 500 | mV | IOUT=20mA，B>BOP | 4 |
| Output high leakage current | IOFF |  |  | 10 | µA | VOUT=24V，B<B RP | 4 |
| Output fall time | tf |  |  | 0.5 | µS | RL=820Ω，CL=20pF | 4 |
| Supply voltage (absolute maximum) | VDD | -0.3 |  | 28 | V |  | 4 |
| Output breakdown voltage | VOUT(OFF) |  |  | 32 | V |  | 4 |
| Output low current | IOUTL |  |  | 50 | mA |  | 4 |
| Maximum allowable power dissipation | PD |  |  | 450 | mW |  | 4 |
| Operating temperature range | To | -40 |  | 125 | ℃ |  | 4 |
| Maximum junction temperature | TJ |  |  | 125 | ℃ |  | 4 |
| Storage temperature range | Ts | -65 |  | 160 | ℃ |  | 4 |

## CAD (KiCad official)

- Symbol: `GH1881`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92S (KiCad packages3D, STEP)
- 3D model files: `gh1881-etched.step` / `gh1881-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gh1881.step` / `gh1881.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/8588891970186465280) (9 pp, sha256 `f9201ead7b206b3f`, 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/gh1881-datasheet.pdf)