OPA333M5 from HGSEMI, in a SOT-23-5. 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	OUT	output	Amplifier output; the datasheet states output swing within 100 mV of the supply rails and a short-circuit current of ±5 mA.
2	V-	power_in	Negative power supply (lowest potential); the supply range is 1.8 V to 5.5 V across V+ and V-, with an absolute maximum supply of 7 V.
3	+IN	input	Non-inverting input; common-mode range extends 0.1 V beyond each supply rail, and input current must be limited to 10 mA max when the input exceeds a rail by 0.3 V or more.
4	-IN	input	Inverting input; common-mode range extends 0.1 V beyond each supply rail, and input current must be limited to 10 mA max when the input exceeds a rail by 0.3 V or more.
5	V+	power_in	Positive power supply (highest potential); the supply range is 1.8 V to 5.5 V, with an absolute maximum supply of 7 V.

Key specifications

Parameter	Value
Manufacturer	HGSEMI
Package	SOT-23-5
Category	Operational Amplifier/Comparator
Pins	5

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Input offset voltage	VOS		2	15	µV	VS = 5V	8
Power supply rejection ratio	PSRR		1	8	µV/V	VS = 1.8V to 5.5V	8
Input bias current	IB	-70		70	pA		8
Input bias current over temperature	IB	-150		150	pA	TA = -40°C 至 +125°C	8
Input offset current	IOS	-140		140	pA		8
Common-mode rejection ratio	CMRR	102	115		dB	(V-) - 0.1V < VCM < (V+) + 0.1V	8
Open-loop voltage gain	AOL	102	130		dB	(V-) + 0.1V < VO < (V+) - 0.1V	8
Output voltage swing from supply rail			30	70	mV	TA = -40°C 至 +125°C	8
Short-circuit current	ISC	-5		5	mA		8
Rated supply voltage range	VS	1.8		5.5	V		9
Quiescent current per amplifier	IQ		17	28	µA	IO = 0mA，TA = -40°C 至 +125°C	9
Rated temperature range		-40		125	°C		9
Operating temperature range		-40		85	°C		9
Supply voltage	VS			7	V	VS = (V+) - (V-)	6
Input current		-10		10	mA		6
Operating temperature		-40		125	°C	Ambient, natural ventilation	6
Lead temperature (soldering)				260	°C	Soldering, 10s	6
Junction temperature				150	°C		6
Storage temperature	Tstg	-65		150	°C		6
ESD human body model	V(ESD)	-4000		4000	V	HBM, ANSI/ESDA/JEDEC JS-001	6
ESD charged device model	V(ESD)	-1000		1000	V	CDM, JEDEC JESD22-C101	6
Junction-to-ambient thermal resistance (SOT-23-5)	RθJA		220.8		°C/W	SOT23 5-pin package	7
Junction-to-case (top) thermal resistance (SOT-23-5)	RθJC(top)		97.5		°C/W	SOT23 5-pin package	7
Junction-to-board thermal resistance (SOT-23-5)	RθJB		61.7		°C/W	SOT23 5-pin package	7
Junction-to-top characterization parameter (SOT-23-5)	ψJT		7.6		°C/W	SOT23 5-pin package	7
Junction-to-board characterization parameter (SOT-23-5)	ψJB		61.1		°C/W	SOT23 5-pin package	7

CAD (KiCad official)

Symbol: OPA333M5
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)
3D model files: opa333m5-etched.step / opa333m5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa333m5.step / opa333m5.glb are the bare package body.

Provenance

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

Datasheet: HGSEMI datasheet (20 pp, sha256 bc8cb63c9597692f, retrieved 2026-11-05, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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

OPA333M5

Verified OPA333M5

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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