component
ULN2003AD
Public Made by Adomby adom
Texas Instruments Darlington Transistor Arrays, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownULN2003AD
Texas Instruments · Darlington Transistor Arrays · SOIC-16
ULN2003AD from Texas Instruments, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1B | input | Darlington base input for channel 1. |
| 2 | 2B | input | Darlington base input for channel 2. |
| 3 | 3B | input | Darlington base input for channel 3. |
| 4 | 4B | input | Darlington base input for channel 4. |
| 5 | 5B | input | Darlington base input for channel 5. |
| 6 | 6B | input | Darlington base input for channel 6. |
| 7 | 7B | input | Darlington base input for channel 7. |
| 8 | E | power_in | Common emitter terminal for all channels, typically connected to ground. |
| 9 | COM | passive | Common cathode node of flyback diodes for inductive load suppression. |
| 10 | 7C | output | Darlington collector output for channel 7, open-collector with 500 mA continuous rating. |
| 11 | 6C | output | Darlington collector output for channel 6, open-collector with 500 mA continuous rating. |
| 12 | 5C | output | Darlington collector output for channel 5, open-collector with 500 mA continuous rating. |
| 13 | 4C | output | Darlington collector output for channel 4, open-collector with 500 mA continuous rating. |
| 14 | 3C | output | Darlington collector output for channel 3, open-collector with 500 mA continuous rating. |
| 15 | 2C | output | Darlington collector output for channel 2, open-collector with 500 mA continuous rating. |
| 16 | 1C | output | Darlington collector output for channel 1, open-collector with 500 mA continuous rating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Transistors/Thyristors |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ULN2003AD - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
uln2003ad-etched.step/uln2003ad-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uln2003ad.step/uln2003ad.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (42 pp, sha256
dc0ff3e1071163ae, retrieved 2026-09-22, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).