AUIRS2118STR from Infineon Technologies, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VCC	power_in	Low-side and logic fixed supply, recommended operating range 10 V to 20 V (absolute maximum 25 V), with undervoltage lockout.
2	IN	input	Logic input for gate driver output HO, out of phase with HO (AUIRS2118), CMOS Schmitt-triggered with pull-up, range 0 V to VCC.
3	COM	power_in	Logic ground, the reference for all absolute maximum voltage ratings.
4	NC	unconnected	No connection.
5	NC	unconnected	No connection.
6	VS	power_in	High-side floating supply return, offset operational up to 600 V and tolerant to negative transients.
7	HO	output	High-side gate drive output, swinging between VS and VB with typical 290 mA source and 600 mA sink pulsed current.
8	VB	power_in	High-side floating supply, operating at VS+10 V to VS+20 V (absolute maximum 625 V).

Key specifications

Parameter	Value
Manufacturer	Infineon Technologies
Package	SOIC-8
Category	Power Management ICs
Pins	8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
High-side floating absolute voltage	VB	-0.3		625	V		4
Logic supply voltage	VCC	-0.3		25	V		4
Allowable offset supply voltage transient	dVS/dt			50	V/ns	Fig. 2	4
Package power dissipation	PD			0.625	W	TA ≤ 25°C	4
Thermal resistance, junction to ambient	RthJA			200	°C/W		4
Junction temperature	TJ			150	°C		4
Storage temperature	TS	-55		150	°C		4
Lead temperature (soldering, 10 seconds)	TL			300	°C		4
Logic supply voltage	VCC	10		20	V		4
High-side floating supply offset voltage	VS			600	V	Logic operational for VS of -5 V to +600 V	4
Ambient temperature	TA	-40		125	°C		4
High level output voltage, VBIAS - VO	VOH		0.05	0.2	V	IO = 2 mA	5
Low level output voltage, VO	VOL		0.02	0.2	V		5
Offset supply leakage current	ILK			50	µA	VB = VS = 600 V	5
Quiescent VBS supply current	IQBS		50	240	µA	VIN = 0 V or VCC	5
Quiescent VCC supply current	IQCC		70	340	µA	VIN = 0 V or VCC	5
Logic "1" input bias current	IIN+		20	40	µA	VIN = 0 V	5
Logic "0" input bias current	IIN-			5	µA	VIN = VCC	5
VBS supply undervoltage positive going threshold	VBSUV+	7.6	8.6	9.6	V		5
VBS supply undervoltage negative going threshold	VBSUV-	7.2	8.2	9.2	V		5
VCC supply undervoltage positive going threshold	VCCUV+	7.6	8.6	9.6	V		5
VCC supply undervoltage negative going threshold	VCCUV-	7.2	8.2	9.2	V		5
Output high short circuit pulsed current	IO+	200	290		mA	VO = 0 V, VIN = Logic "1", PW ≤ 10 µs	5
Output low short circuit pulsed current	IO-	420	600		mA	VO = 15 V, VIN = Logic "0", PW ≤ 10 µs	5
Turn-on propagation delay	ton		140	225	ns	VS = 0 V	5
Turn-off propagation delay	toff		140	225	ns	VS = 600 V	5
Turn-on rise time	tr		75	130	ns		5
Turn-off fall time	tf		25	65	ns		5

CAD (KiCad official)

Symbol: AUIRS2118STR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: auirs2118str-etched.step / auirs2118str-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); auirs2118str.step / auirs2118str.glb are the bare package body.

Provenance

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

Datasheet: Infineon Technologies datasheet (21 pp, sha256 238841e34c21996b, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

AUIRS2118STR

Verified AUIRS2118STR

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README