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ULN2003AM

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by Ray

HGSEMI Darlington Transistor Arrays, SOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componenttransistors-thyristorsuln2003am
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3D Model

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Datasheet

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Contents

README

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ULN2003AM

HGSEMI · Darlington Transistor Arrays · SOP-16

ULN2003AM from HGSEMI, in a SOP-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 to Darlington pair 1. TTL/CMOS compatible logic input; drives corresponding open-collector output 1C through internal ~2.7 kΩ base resistor.
2 2B input Base input to Darlington pair 2. TTL/CMOS compatible logic input; drives output 2C.
3 3B input Base input to Darlington pair 3. TTL/CMOS compatible logic input; drives output 3C.
4 4B input Base input to Darlington pair 4. TTL/CMOS compatible logic input; drives output 4C.
5 5B input Base input to Darlington pair 5. TTL/CMOS compatible logic input; drives output 5C.
6 6B input Base input to Darlington pair 6. TTL/CMOS compatible logic input; drives output 6C.
7 7B input Base input to Darlington pair 7. TTL/CMOS compatible logic input; drives output 7C.
8 GND power_in Common ground/emitter return for all seven Darlington pairs. Connect to system ground.
9 COM power_in Common cathode for the internal freewheeling suppression diodes. Connect to the positive supply of the inductive load (up to 50 V) to clamp back-EMF when switching relays, solenoids, or motors.
10 7C output Open-collector Darlington output 7. Sinks up to 500 mA to GND when input 7B is high; VCE(sat) ≈ 1.1 V @ 200 mA. Withstands up to 50 V off-state.
11 6C output Open-collector Darlington output 6. Sinks up to 500 mA to GND when input 6B is high; withstands up to 50 V off-state.
12 5C output Open-collector Darlington output 5. Sinks up to 500 mA to GND when input 5B is high; withstands up to 50 V off-state.
13 4C output Open-collector Darlington output 4. Sinks up to 500 mA to GND when input 4B is high; withstands up to 50 V off-state.
14 3C output Open-collector Darlington output 3. Sinks up to 500 mA to GND when input 3B is high; withstands up to 50 V off-state.
15 2C output Open-collector Darlington output 2. Sinks up to 500 mA to GND when input 2B is high; withstands up to 50 V off-state.
16 1C output Open-collector Darlington output 1. Sinks up to 500 mA to GND when input 1B is high; withstands up to 50 V off-state.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • ULN2003AMS16
  • ULN2003AMN
  • ULN2003AMTS16

CAD (KiCad official)

  • Symbol: ULN2003AM
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HGSEMI datasheet (10 pp, sha256 995b5bd619cd84d5, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF