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2PC4081S

Public Made by Adom

by adom

Nexperia Bipolar Transistors - BJT, SOT-323-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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2PC4081S

Nexperia · Bipolar Transistors - BJT · SOT-323-3

2PC4081S from Nexperia, in a SOT-323-3. 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 B input Base terminal of the NPN transistor, with peak base current limited to IBM 200 mA and emitter-base voltage VEBO 7 V.
2 E passive Emitter terminal of the NPN transistor, with emitter-base voltage limited to VEBO 7 V.
3 C passive Collector terminal of the NPN transistor, with collector current limited to IC 150 mA and collector-emitter voltage VCEO 50 V.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-323-3
Category Transistors
Pins 3

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
collector-base voltage VCBO 60 V open emitter 2
collector-emitter voltage VCEO 50 V open base 2
emitter-base voltage VEBO 7 V open collector 2
collector current IC 150 mA 2
peak collector current ICM 200 mA 2
peak base current IBM 200 mA 2
total power dissipation Ptot 200 mW Tamb ≤ 25 °C 2
junction temperature Tj 150 °C 2
ambient temperature Tamb -65 150 °C 2
storage temperature Tstg -65 150 °C 2
thermal resistance from junction to ambient Rth(j-a) 625 K/W in free air 2
collector-base cut-off current ICBO 100 nA VCB = 30 V; IE = 0 A; Tamb = 25 °C 3
collector-base cut-off current ICBO 5 µA VCB = 30 V; IE = 0 A; Tj = 150 °C 3
emitter-base cut-off current IEBO 100 nA VEB = 4 V; IC = 0 A; Tamb = 25 °C 3
DC current gain hFE 270 560 VCE = 6 V; IC = 1 mA; Tamb = 25 °C 3
collector-emitter saturation voltage VCEsat 400 mV IC = 50 mA; IB = 5 mA; tp ≤ 300 µs; δ ≤ 0.02; Tamb = 25 °C 3
collector capacitance Cc 2 3.5 pF VCB = 12 V; IE = 0 A; ie = 0 A; f = 1 MHz; Tamb = 25 °C 3
transition frequency fT 100 MHz VCE = 12 V; IC = 2 mA; f = 100 MHz; Tamb = 25 °C 3

CAD (KiCad official)

  • Symbol: 2PC4081S
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323-3 (KiCad packages3D, STEP)
  • 3D model files: 2pc4081s-etched.step / 2pc4081s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2pc4081s.step / 2pc4081s.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (7 pp, sha256 d8be80d7e552bb0a, retrieved 2026-10-28, tier: manufacturer)
  • 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