# ULN2004AN

**XBLW** · Darlington Transistor Arrays · DIP-16

ULN2004AN from XBLW, in a DIP-16. 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 | 1B | input | Input 1 (channel 1 Darlington base input, TTL/CMOS compatible). |
| 2 | 2B | input | Input 2 (channel 2 Darlington base input, TTL/CMOS compatible). |
| 3 | 3B | input | Input 3 (channel 3 Darlington base input, TTL/CMOS compatible). |
| 4 | 4B | input | Input 4 (channel 4 Darlington base input, TTL/CMOS compatible). |
| 5 | 5B | input | Input 5 (channel 5 Darlington base input, TTL/CMOS compatible). |
| 6 | 6B | input | Input 6 (channel 6 Darlington base input, TTL/CMOS compatible). |
| 7 | 7B | input | Input 7 (channel 7 Darlington base input, TTL/CMOS compatible). |
| 8 | E | power_in | Ground (common emitter of the Darlington array). |
| 9 | COM | passive | Common free wheeling diodes (suppression diode cathodes for inductive loads). |
| 10 | 7C | output | Output 7 (channel 7 Darlington collector output, rated 500 mA). |
| 11 | 6C | output | Output 6 (channel 6 Darlington collector output, rated 500 mA). |
| 12 | 5C | output | Output 5 (channel 5 Darlington collector output, rated 500 mA). |
| 13 | 4C | output | Output 4 (channel 4 Darlington collector output, rated 500 mA). |
| 14 | 3C | output | Output 3 (channel 3 Darlington collector output, rated 500 mA). |
| 15 | 2C | output | Output 2 (channel 2 Darlington collector output, rated 500 mA). |
| 16 | 1C | output | Output 1 (channel 1 Darlington collector output, rated 500 mA). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XBLW |
| Package | DIP-16 |
| Category | Transistors/Thyristors |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `ULN2004AN`
- Footprint: `Package_DIP:DIP-16_W7.62mm`
- 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files: `uln2004an-etched.step` / `uln2004an-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uln2004an.step` / `uln2004an.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XBLW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8563440662122430464) (10 pp, sha256 `076a4ef1512f1831`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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/uln2004an-datasheet.pdf)