GS8333-TR from Gainsil, in a SOT-23-5. 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	output	Amplifier output. Rail-to-rail output stage; typically swings within 5mV of the supply rails at light loads (>100kΩ) and 100mV at moderate loads (10kΩ). Short-circuit current ~20mA.
2	VSS	power_in	Negative supply / ground. Connect to ground for single-supply operation (1.8V to 5.5V) or to the negative rail for dual-supply operation (±0.9V to ±2.75V). Bypass with a 0.1µF ceramic capacitor for dual-supply operation.
3	IN+	input	Non-inverting analog input. Rail-to-rail input common-mode range extends 100mV beyond the supply rails (VSS-0.1V to VDD+0.1V). Input bias current ~20pA typ.
4	IN-	input	Inverting analog input. Rail-to-rail input common-mode range extends 100mV beyond the supply rails (VSS-0.1V to VDD+0.1V). Input bias current ~20pA typ.
5	VDD	power_in	Positive supply. 1.8V to 5.5V single supply (absolute max 7.5V VDD-VSS). Bypass with a 0.1µF ceramic capacitor placed close to the pin.

Key specifications

Parameter	Value
Manufacturer	Gainsil
Package	SOT-23-5
Category	Op-amp/Cmp
Pins	5

Ordering variants

Same part, different packaging or reel option.

GS8333-TR
GS8333-TRCR

CAD (KiCad official)

Symbol: GS8333-TR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`gs8333-tr.step`	85 KB	You want the bare part, or you mark your own boards.
`gs8333-tr-etched.step`	2.2 MB	You want the part with `GS8333-TR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 516 faces against 102 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: Gainsil datasheet (11 pp, sha256 0a6ac138215bcb33, 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