component
ULN2003BDR
Public Made by Adomby adom
Texas Instruments Darlington Transistor Arrays, SOIC-16. Datasheet-verified pinout, 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
markdownULN2003BDR
Texas Instruments · Darlington Transistor Arrays · SOIC-16
ULN2003BDR 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 | Base input for Darlington pair channel 1; TTL/CMOS compatible input with internal 2.7kΩ series resistor. |
| 2 | 2B | input | Base input for Darlington pair channel 2; TTL/CMOS compatible input with internal 2.7kΩ series resistor. |
| 3 | 3B | input | Base input for Darlington pair channel 3; TTL/CMOS compatible input with internal 2.7kΩ series resistor. |
| 4 | 4B | input | Base input for Darlington pair channel 4; TTL/CMOS compatible input with internal 2.7kΩ series resistor. |
| 5 | 5B | input | Base input for Darlington pair channel 5; TTL/CMOS compatible input with internal 2.7kΩ series resistor. |
| 6 | 6B | input | Base input for Darlington pair channel 6; TTL/CMOS compatible input with internal 2.7kΩ series resistor. |
| 7 | 7B | input | Base input for Darlington pair channel 7; TTL/CMOS compatible input with internal 2.7kΩ series resistor. |
| 8 | E | power_in | Common emitter node shared by all channels, tied to ground reference with maximum 2.5A total emitter current. |
| 9 | COM | passive | Common cathode node for internal flyback diodes; connect to supply voltage to suppress inductive load kick-back. |
| 10 | 7C | tri_state | Collector output for Darlington pair channel 7; open-collector output with 500mA maximum current rating at 50V. |
| 11 | 6C | tri_state | Collector output for Darlington pair channel 6; open-collector output with 500mA maximum current rating at 50V. |
| 12 | 5C | tri_state | Collector output for Darlington pair channel 5; open-collector output with 500mA maximum current rating at 50V. |
| 13 | 4C | tri_state | Collector output for Darlington pair channel 4; open-collector output with 500mA maximum current rating at 50V. |
| 14 | 3C | tri_state | Collector output for Darlington pair channel 3; open-collector output with 500mA maximum current rating at 50V. |
| 15 | 2C | tri_state | Collector output for Darlington pair channel 2; open-collector output with 500mA maximum current rating at 50V. |
| 16 | 1C | tri_state | Collector output for Darlington pair channel 1; open-collector output with 500mA maximum current rating at 50V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Transistors/Thyristors |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ULN2003BDR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
uln2003bdr-etched.step/uln2003bdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uln2003bdr.step/uln2003bdr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (21 pp, sha256
67de9d2264849b51, retrieved 2026-09-23, tier: manufacturer) - 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).