LM193DR from UMW, in a SOP-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	OUT_A	output	Open-collector output of comparator A. Requires an external pull-up resistor. Can sink up to 16 mA typical.
2	IN_A-	input	Inverting input of comparator A. Common-mode input voltage range includes ground.
3	IN_A+	input	Non-inverting input of comparator A. Common-mode input voltage range includes ground.
4	GND	power_in	Ground / negative supply (V-). Typically tied to 0 V for single-supply operation.
5	IN_B+	input	Non-inverting input of comparator B. Common-mode input voltage range includes ground.
6	IN_B-	input	Inverting input of comparator B. Common-mode input voltage range includes ground.
7	OUT_B	output	Open-collector output of comparator B. Requires an external pull-up resistor. Can sink up to 16 mA typical.
8	VCC	power_in	Positive supply voltage (V+). Operating range 2 V to 36 V single supply, or ±1 V to ±18 V dual supply.

Key specifications

Parameter	Value
Manufacturer	UMW
Package	SOP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

LM193DR

CAD (KiCad official)

Symbol: LM193DR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm193dr.step`	122 KB	You want the bare part, or you mark your own boards.
`lm193dr-etched.step`	1.6 MB	You want the part with `LM193DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 397 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: UMW datasheet (8 pp, sha256 7515c240c23cc503, retrieved 2026-08-17, tier: lcsc)
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