Mechanical Dimensions & Land Pattern (SOIC-16)
Extracted from Datasheet & IPC-7351B NormalizedRecommended Companion BOM & Drop-In Equivalents
Passive external components per reference schematic and 1:1 pin-compatible alternatives| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit SOIC-16 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — ULN2003ADR (SOIC-16)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of ULN2003ADR (SOIC-16)?
Manufactured by TI, the ULN2003ADR is housed in a SOIC-16 package with 16 pins and a 1.27 mm lead pitch, supporting a VCC supply range of 6 V to 15 V. Key pins include: 1 (1B: Multiplexed I/O & Peripheral Pin 1B (General)), 2 (2B: Multiplexed I/O & Peripheral Pin 2B (General)), 3 (3B: Multiplexed I/O & Peripheral Pin 3B (General)), 4 (4B: Multiplexed I/O & Peripheral Pin 4B (General)), 5 (5B: Multiplexed I/O & Peripheral Pin 5B (General)), 6 (6B: Multiplexed I/O & Peripheral Pin 6B (General)).
What are the IPC-7351B PCB Footprint dimensions for ULN2003ADR?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), ULN2003ADR (SOIC-16) has a nominal body envelope of 3.90 × 9.90 mm, pitch e = 1.27 mm, and 16 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for ULN2003ADR?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for ULN2003ADR (TI, SOIC-16) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
Static Reference Appendix: Pinout Table (16 pins) & ULN2003 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | 1B | Digital_IO | Signal terminal 1B (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 1B. Supported peripheral buses: General. |
| 2 | 2B | Digital_IO | Signal terminal 2B (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 2B. Supported peripheral buses: General. |
| 3 | 3B | Digital_IO | Signal terminal 3B (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 3B. Supported peripheral buses: General. |
| 4 | 4B | Digital_IO | Signal terminal 4B (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 4B. Supported peripheral buses: General. |
| 5 | 5B | Digital_IO | Signal terminal 5B (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 5B. Supported peripheral buses: General. |
| 6 | 6B | Digital_IO | Signal terminal 6B (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 6B. Supported peripheral buses: General. |
| 7 | 7B | Digital_IO | Signal terminal 7B (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 7B. Supported peripheral buses: General. |
| 8 | E | Digital_IO | Signal terminal E (I/O, 6 V to 15 V domain). Multiplexed alternate functions: E. Supported peripheral buses: General. |
| 9 | COM | Digital_IO | Signal terminal COM (I/O, 6 V to 15 V domain). Multiplexed alternate functions: COM. Supported peripheral buses: General. |
| 10 | 7C | Digital_IO | Signal terminal 7C (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 7C. Supported peripheral buses: General. |
| 11 | 6C | Digital_IO | Signal terminal 6C (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 6C. Supported peripheral buses: General. |
| 12 | 5C | Digital_IO | Signal terminal 5C (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 5C. Supported peripheral buses: General. |
| 13 | 4C | Digital_IO | Signal terminal 4C (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 4C. Supported peripheral buses: General. |
| 14 | 3C | Digital_IO | Signal terminal 3C (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 3C. Supported peripheral buses: General. |
| 15 | 2C | Digital_IO | Signal terminal 2C (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 2C. Supported peripheral buses: General. |
| 16 | 1C | Digital_IO | Signal terminal 1C (I/O, 6 V to 15 V domain). Multiplexed alternate functions: 1C. Supported peripheral buses: General. |




