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Contents

README

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ULN2003ACM

HGSEMI · Darlington Transistor Arrays · SOP-16

ULN2003ACM from HGSEMI, 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 Input 1: NPN Darlington base input with 2.7 kΩ series resistor; TTL/CMOS compatible, VI(ON) 2.4-3.0 V, input voltage range −0.3 V to 30 V.
2 2B input Input 2: NPN Darlington base input with 2.7 kΩ series resistor; TTL/CMOS compatible, VI(ON) 2.4-3.0 V, input voltage range −0.3 V to 30 V.
3 3B input Input 3: NPN Darlington base input with 2.7 kΩ series resistor; TTL/CMOS compatible, VI(ON) 2.4-3.0 V, input voltage range −0.3 V to 30 V.
4 4B input Input 4: NPN Darlington base input with 2.7 kΩ series resistor; TTL/CMOS compatible, VI(ON) 2.4-3.0 V, input voltage range −0.3 V to 30 V.
5 5B input Input 5: NPN Darlington base input with 2.7 kΩ series resistor; TTL/CMOS compatible, VI(ON) 2.4-3.0 V, input voltage range −0.3 V to 30 V.
6 6B input Input 6: NPN Darlington base input with 2.7 kΩ series resistor; TTL/CMOS compatible, VI(ON) 2.4-3.0 V, input voltage range −0.3 V to 30 V.
7 7B input Input 7: NPN Darlington base input with 2.7 kΩ series resistor; TTL/CMOS compatible, VI(ON) 2.4-3.0 V, input voltage range −0.3 V to 30 V.
8 GND power_in Common emitter ground return for all seven Darlington output stages.
9 COM power_in Flyback-suppression diode common cathode; connect to load supply (up to 50 V) to clamp inductive-load transients; diode VF = 1.7-2.0 V at IF = 350 mA.
10 7C output Output 7: open-collector NPN Darlington; max VCEO = 50 V, IC(continuous) = 500 mA, VCE(sat) = 1.3 V max at IC = 350 mA / IB = 500 µA.
11 6C output Output 6: open-collector NPN Darlington; max VCEO = 50 V, IC(continuous) = 500 mA, VCE(sat) = 1.3 V max at IC = 350 mA / IB = 500 µA.
12 5C output Output 5: open-collector NPN Darlington; max VCEO = 50 V, IC(continuous) = 500 mA, VCE(sat) = 1.3 V max at IC = 350 mA / IB = 500 µA.
13 4C output Output 4: open-collector NPN Darlington; max VCEO = 50 V, IC(continuous) = 500 mA, VCE(sat) = 1.3 V max at IC = 350 mA / IB = 500 µA.
14 3C output Output 3: open-collector NPN Darlington; max VCEO = 50 V, IC(continuous) = 500 mA, VCE(sat) = 1.3 V max at IC = 350 mA / IB = 500 µA.
15 2C output Output 2: open-collector NPN Darlington; max VCEO = 50 V, IC(continuous) = 500 mA, VCE(sat) = 1.3 V max at IC = 350 mA / IB = 500 µA.
16 1C output Output 1: open-collector NPN Darlington; max VCEO = 50 V, IC(continuous) = 500 mA, VCE(sat) = 1.3 V max at IC = 350 mA / IB = 500 µA.

Key specifications

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

CAD (KiCad official)

  • Symbol: ULN2003ACM
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: uln2003acm-etched.step / uln2003acm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); uln2003acm.step / uln2003acm.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (9 pp, sha256 91521ebac52846fe, retrieved 2026-09-29, 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