MMUN2232LT1G

onsemi · Digital Transistors · SOT-23

MMUN2232LT1G from onsemi, in a SOT-23. 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	BASE	input	Base is the input of the bias-resistor transistor, with a 4.7 kΩ series base resistor (R1); input forward voltage VIN(fwd) is limited to 30 Vdc and input reverse voltage VIN(rev) to 10 Vdc.
2	EMITTER	power_in	Emitter is the ground reference of the device, tied to the internal 4.7 kΩ base-emitter resistor (R2), and is labeled GROUND on the datasheet pin diagram.
3	COLLECTOR	output	Collector is the output of the transistor, rated for a collector-emitter voltage VCEO of 50 Vdc and a continuous collector current IC of 100 mAdc.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOT-23
Category	Transistors/Thyristors
Pins	3

CAD (KiCad official)

Symbol: MMUN2232LT1G
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)
3D model files: mmun2232lt1g-etched.step / mmun2232lt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmun2232lt1g.step / mmun2232lt1g.glb are the bare package body.

Provenance

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

Datasheet: onsemi datasheet (13 pp, sha256 829670ed312faf9c, retrieved 2026-10-09, tier: lcsc)
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

# MMUN2232LT1G

**onsemi** · Digital Transistors · SOT-23

MMUN2232LT1G from onsemi, in a SOT-23. 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 | BASE | input | Base is the input of the bias-resistor transistor, with a 4.7 kΩ series base resistor (R1); input forward voltage VIN(fwd) is limited to 30 Vdc and input reverse voltage VIN(rev) to 10 Vdc. |
| 2 | EMITTER | power_in | Emitter is the ground reference of the device, tied to the internal 4.7 kΩ base-emitter resistor (R2), and is labeled GROUND on the datasheet pin diagram. |
| 3 | COLLECTOR | output | Collector is the output of the transistor, rated for a collector-emitter voltage VCEO of 50 Vdc and a continuous collector current IC of 100 mAdc. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `MMUN2232LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmun2232lt1g-etched.step` / `mmun2232lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmun2232lt1g.step` / `mmun2232lt1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884207338180608) (13 pp, sha256 `829670ed312faf9c`, retrieved 2026-10-09, tier: lcsc)
- **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/mmun2232lt1g-datasheet.pdf)