AS331KTR-G1 from Diodes Incorporated, 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	INPUT-	input	Inverting analog comparator input. Common-mode range includes ground (0V to VCC-1.5V at 25°C); may extend to +36V without damage. Input bias current 25nA typ.
2	GND	power_in	Device ground / negative supply reference. Tie to 0V for single-supply operation or to the negative rail for split-supply operation.
3	INPUT+	input	Non-inverting analog comparator input. Common-mode range includes ground (0V to VCC-1.5V at 25°C); may extend to +36V without damage. Input bias current 25nA typ.
4	OUTPUT	output	Open-collector comparator output. Requires an external pull-up resistor to VCC (or any voltage up to 36V). Sinks 6mA min (16mA typ) with VOL ≈ 200mV at 4mA; leakage 0.1nA typ when off.
5	VCC	power_in	Positive supply. Single-supply range 2V to 36V; dual-supply ±1V to ±18V. Typical supply current 0.4mA at VCC=5V (1mA max).

Key specifications

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

Ordering variants

AS331KTR-G1

CAD (KiCad official)

Symbol: AS331KTR-G1
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Diodes Incorporated datasheet (10 pp, sha256 14729a117b78c1d3, 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