component

UA741CDT

Public Made by Adom

by adom

STMicroelectronics Operational Amplifier, SO-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs ua741cdt: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json ua741cdt: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray
README.md ua741cdt: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
ua741cdt-etched.fit.json ua741cdt: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ua741cdt-etched.glb ua741cdt: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray
ua741cdt-etched.step ua741cdt: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray
ua741cdt.glb Publish 0.1.0 · Ray
ua741cdt.kicad_mod Publish 0.1.0 · Ray
ua741cdt.kicad_sym Publish 0.1.0 · Ray
ua741cdt.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
ua741cdt.step Publish 0.1.0 · Ray

UA741CDT

STMicroelectronics · Operational Amplifier · SO-8

UA741CDT 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_NULL1 input Offset null 1. Connect an external trim potentiometer between OFFSET_NULL1 (pin 1) and OFFSET_NULL2 (pin 5) with the wiper tied to VCC- to trim input offset voltage (typ 1 mV, max 5 mV at 25 °C).
2 IN- input Inverting input of the op-amp. High-impedance analog input (Ri typ 2 MΩ, min 0.3 MΩ). Common-mode input range ±12 V at VCC = ±15 V.
3 IN+ input Non-inverting input of the op-amp. High-impedance analog input (Ri typ 2 MΩ, min 0.3 MΩ). Common-mode input range ±12 V at VCC = ±15 V.
4 VCC- power_in Negative supply rail. Typical dual-supply operation ±15 V; absolute maximum ±22 V. Total supply range 5 to 40 V.
5 OFFSET_NULL2 input Offset null 2. Second terminal of the external offset-trim potentiometer (paired with OFFSET_NULL1 on pin 1, wiper to VCC-).
6 OUT output Op-amp output. Class-AB output stage with internal short-circuit protection; output swing ±14 V typical at RL = 10 kΩ and VCC = ±15 V; short-circuit current typ 25 mA.
7 VCC+ power_in Positive supply rail. Typical dual-supply operation ±15 V; absolute maximum ±22 V. Total supply range 5 to 40 V; supply current typ 1.7 mA.
8 NC unconnected No internal connection. Leave floating or tie to any convenient net.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • UA741CDTD
  • UA741CDT
  • UA741CDTN
  • UA741CDTCN

CAD (KiCad official)

  • Symbol: UA741CDT
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SO-8 (KiCad packages3D, STEP)
  • 3D model files: ua741cdt-etched.step / ua741cdt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ua741cdt.step / ua741cdt.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ua741cdt.step 122 KB You want the bare part, or you mark your own boards.
ua741cdt-etched.step 1.4 MB You want the part with UA741CDT already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 368 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