# ULN2003A-JSM

**JSMSEMI** · Darlington Transistor Arrays · SOP-16

ULN2003A-JSM from JSMSEMI, in a SOP-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 | Channel 1 Darlington base input, rated for an input voltage of -0.5 V to 30 V, turning the output on at 2.8 V minimum and off at 0.7 V maximum. |
| 2 | 2B | input | Channel 2 Darlington base input, rated for an input voltage of -0.5 V to 30 V, turning the output on at 2.8 V minimum and off at 0.7 V maximum. |
| 3 | 3B | input | Channel 3 Darlington base input, rated for an input voltage of -0.5 V to 30 V, turning the output on at 2.8 V minimum and off at 0.7 V maximum. |
| 4 | 4B | input | Channel 4 Darlington base input, rated for an input voltage of -0.5 V to 30 V, turning the output on at 2.8 V minimum and off at 0.7 V maximum. |
| 5 | 5B | input | Channel 5 Darlington base input, rated for an input voltage of -0.5 V to 30 V, turning the output on at 2.8 V minimum and off at 0.7 V maximum. |
| 6 | 6B | input | Channel 6 Darlington base input, rated for an input voltage of -0.5 V to 30 V, turning the output on at 2.8 V minimum and off at 0.7 V maximum. |
| 7 | 7B | input | Channel 7 Darlington base input, rated for an input voltage of -0.5 V to 30 V, turning the output on at 2.8 V minimum and off at 0.7 V maximum. |
| 8 | E | power_in | Emitter common pin connected to ground, with a total emitter peak current limit of 2.5 A. |
| 9 | COM | passive | Common node of the internal clamp diodes for driving inductive loads, rated at 50 V maximum. |
| 10 | 7C | output | Channel 7 Darlington collector output, rated for collector-emitter voltage of -0.5 V to 50 V and 500 mA peak collector current. |
| 11 | 6C | output | Channel 6 Darlington collector output, rated for collector-emitter voltage of -0.5 V to 50 V and 500 mA peak collector current. |
| 12 | 5C | output | Channel 5 Darlington collector output, rated for collector-emitter voltage of -0.5 V to 50 V and 500 mA peak collector current. |
| 13 | 4C | output | Channel 4 Darlington collector output, rated for collector-emitter voltage of -0.5 V to 50 V and 500 mA peak collector current. |
| 14 | 3C | output | Channel 3 Darlington collector output, rated for collector-emitter voltage of -0.5 V to 50 V and 500 mA peak collector current. |
| 15 | 2C | output | Channel 2 Darlington collector output, rated for collector-emitter voltage of -0.5 V to 50 V and 500 mA peak collector current. |
| 16 | 1C | output | Channel 1 Darlington collector output, rated for collector-emitter voltage of -0.5 V to 50 V and 500 mA peak collector current. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-16 |
| Category | Transistors/Thyristors |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `ULN2003A-JSM`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files: `uln2003a-jsm-etched.step` / `uln2003a-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `uln2003a-jsm.step` / `uln2003a-jsm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600482480860377088) (8 pp, sha256 `1ca62ccd17b2c786`, retrieved 2026-10-10, 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/uln2003a-jsm-datasheet.pdf)