ULQ2004A from STMicroelectronics, in a DIP-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	IN 1	input	Darlington driver 1 input, for ULQ2004 intended for 6-15 V CMOS/PMOS logic with absolute maximum input voltage of 30 V.
2	IN 2	input	Darlington driver 2 input, for ULQ2004 intended for 6-15 V CMOS/PMOS logic with absolute maximum input voltage of 30 V.
3	IN 3	input	Darlington driver 3 input, for ULQ2004 intended for 6-15 V CMOS/PMOS logic with absolute maximum input voltage of 30 V.
4	IN 4	input	Darlington driver 4 input, for ULQ2004 intended for 6-15 V CMOS/PMOS logic with absolute maximum input voltage of 30 V.
5	IN 5	input	Darlington driver 5 input, for ULQ2004 intended for 6-15 V CMOS/PMOS logic with absolute maximum input voltage of 30 V.
6	IN 6	input	Darlington driver 6 input, for ULQ2004 intended for 6-15 V CMOS/PMOS logic with absolute maximum input voltage of 30 V.
7	IN 7	input	Darlington driver 7 input, for ULQ2004 intended for 6-15 V CMOS/PMOS logic with absolute maximum input voltage of 30 V.
8	GND	power_in	Common emitter ground of all seven Darlington drivers, carrying the sink current of the outputs.
9	COMMON FREE WHEELING DIODES	passive	Common cathode of the seven integrated suppression (free-wheeling) diodes, connected to the positive supply of the inductive load, with clamp diode rated 50 V reverse and IF = 350 mA.
10	OUT 7	output	Open-collector Darlington output 7 rated for 50 V and 500 mA continuous (600 mA peak).
11	OUT 6	output	Open-collector Darlington output 6 rated for 50 V and 500 mA continuous (600 mA peak).
12	OUT 5	output	Open-collector Darlington output 5 rated for 50 V and 500 mA continuous (600 mA peak).
13	OUT 4	output	Open-collector Darlington output 4 rated for 50 V and 500 mA continuous (600 mA peak).
14	OUT 3	output	Open-collector Darlington output 3 rated for 50 V and 500 mA continuous (600 mA peak).
15	OUT 2	output	Open-collector Darlington output 2 rated for 50 V and 500 mA continuous (600 mA peak).
16	OUT 1	output	Open-collector Darlington output 1 rated for 50 V and 500 mA continuous (600 mA peak).

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	DIP-16
Category	Transistors/Thyristors
Pins	16

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part	Material	Colour / plating	Datasheet says	Page
contacts	copper		pin plastic DIP packages with a copper leadframe to reduce thermal resistance. They are	1

CAD (KiCad official)

Symbol: ULQ2004A
Footprint: Package_DIP:DIP-16_W7.62mm
3D model: DIP-16 (KiCad packages3D, STEP)
3D model files: ulq2004a-etched.step / ulq2004a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ulq2004a.step / ulq2004a.glb are the bare package body.

Provenance

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

Datasheet: STMicroelectronics datasheet (14 pp, sha256 5b76cfd5a2b38468, retrieved 2026-11-06, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (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).

Datasheet PDF

ULQ2004A

Verified ULQ2004A

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README