OPA348M5 from HGSEMI, 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; short-circuit current limited to ~10 mA. Voltage swing to within ~18 mV of the rails with RL = 100 kΩ.
2	V-	power_in	Negative supply rail. Typically tied to ground in single-supply operation. Total supply (V+) - (V-) is 2.1 V to 5.5 V (7.5 V absolute max).
3	+In	input	Non-inverting input. Rail-to-rail common-mode range from (V-)-0.2 V to (V+)+0.2 V. Input bias current 0.5 pA typical; diode-clamped to supply rails, limit current to 10 mA if driven beyond rails.
4	-In	input	Inverting input. Rail-to-rail common-mode range from (V-)-0.2 V to (V+)+0.2 V. Input bias current 0.5 pA typical; diode-clamped to supply rails, limit current to 10 mA if driven beyond rails.
5	V+	power_in	Positive supply rail. Single-supply operation 2.1 V to 5.5 V referenced to V-. Absolute maximum supply voltage (V+)-(V-) is 7.5 V. Decouple to V- with a local ceramic bypass capacitor.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

OPA348M5/TR
OPA348M5M7/TR
OPA348M5M/TR
OPA348M5OPA2348M/TR
OPA348M5OPA2348MM/TR
OPA348M5OPA4348M/TR
OPA348M5OPA4348MT/TR

CAD (KiCad official)

Symbol: OPA348M5
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: HGSEMI datasheet (17 pp, sha256 9c095a2e63a03e64, 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