component

UA741IDT

Public Unreviewed

by Ray

STMicroelectronics Operational Amplifier, SO-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmpua741idt
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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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Contents

README

markdown

UA741IDT

STMicroelectronics · Operational Amplifier · SO-8

UA741IDT from STMicroelectronics, in a SO-8. 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 Offset null 1 input Offset null trim pin 1. Connect an external potentiometer between Offset null 1 (pin 1) and Offset null 2 (pin 5), with the wiper tied to VCC- to null the input offset voltage.
2 Inverting input input Inverting input (IN-) of the operational amplifier. High-impedance analog input; common-mode input voltage range is +/-12 V within the +/-15 V supply rating.
3 Non-inverting input input Non-inverting input (IN+) of the operational amplifier. High-impedance analog input; common-mode input voltage range is +/-12 V.
4 VCC- power_in Negative supply rail (VCC-). Typical dual-supply operation at -15 V; total supply span 5 V to 40 V (i.e. up to +/-22 V absolute maximum).
5 Offset null 2 input Offset null trim pin 2. Paired with Offset null 1 (pin 1) via an external potentiometer with the wiper tied to VCC- for input offset voltage nulling.
6 Output output Op-amp output. Short-circuit protected to either supply rail for an indefinite duration.
7 VCC+ power_in Positive supply rail (VCC+). Typical dual-supply operation at +15 V; total supply span 5 V to 40 V (i.e. up to +/-22 V absolute maximum).
8 N.C. unconnected No internal connection. Leave floating or tie as convenient for PCB routing.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SO-8
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • UA741IDT
  • UA741IDTN

CAD (KiCad official)

  • Symbol: UA741IDT
  • Footprint: Package_SO:TI_SO-PowerPAD-8
  • 3D model: SO-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ua741idt.step 123 KB You want the bare part, or you mark your own boards.
ua741idt-etched.step 1.3 MB You want the part with UA741IDT already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 356 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (11 pp, sha256 a9a423732c10edcf, retrieved 2026-08-17, tier: manufacturer)
  • 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