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Ray Publish 0.1.0 2c3f4ec 17d ago

PBSS4140T

Nexperia · Bipolar (BJT) · SOT-23

PBSS4140T from Nexperia, in a SOT-23. 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; the limiting values allow a peak base current IBM of 1 A for a single pulse with tp ≤ 1 ms.
2 E passive Emitter terminal of the NPN transistor; the emitter-base voltage VEBO is limited to 5 V.
3 C passive Collector terminal of the NPN transistor; the collector current IC is limited to 1 A and the collector-emitter voltage VCEO to 40 V.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-23
Category Transistors/Thyristors
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 40 V open emitter 2
Collector-emitter voltage VCEO 40 V open base 2
Emitter-base voltage VEBO 5 V open collector 2
Collector current IC 1 A 2
Peak collector current ICM 2 A 2
Peak base current IBM 1 A single pulse; tp ≤ 1 ms 2
Total power dissipation Ptot 300 mW Tamb ≤ 25 °C; FR4 PCB, standard footprint [1] 2
Total power dissipation Ptot 450 mW Tamb ≤ 25 °C; FR4 PCB, 1 cm² collector mounting pad [2] 2
Junction temperature Tj 150 °C 2
Ambient temperature Tamb -65 150 °C 2
Storage temperature Tstg -65 150 °C 2
Thermal resistance junction to ambient Rth(j-a) 417 K/W in free air; FR4 PCB, single-sided, 35 μm copper, standard footprint [1] 2
Thermal resistance junction to ambient Rth(j-a) 278 K/W in free air; FR4 PCB, 35 µm copper, mounting pad for collector 1 cm² [2] 2
Collector-base breakdown voltage V(BR)CBO 40 V IC = 100 µA; IE = 0 A; Tamb = 25 °C 3
Collector-emitter breakdown voltage V(BR)CEO 40 V IC = 2 mA; IB = 0 A; Tamb = 25 °C 3
Emitter-base breakdown voltage V(BR)EBO 5 V IE = 100 µA; IC = 0 A; Tamb = 25 °C 3
Collector-base cut-off current ICBO 100 nA VCB = 40 V; IE = 0 A; Tamb = 25 °C 3
Collector-base cut-off current ICBO 50 µA VCB = 40 V; IE = 0 A; Tamb = 150 °C 3
Collector-emitter cut-off current ICES 100 nA VCE = 30 V; Tamb = 25 °C 3
Collector-emitter cut-off current (base open) ICEO 100 nA IB = 0 A; VCE = 30 V; Tamb = 25 °C 3
Emitter-base cut-off current IEBO 100 nA VEB = 5 V; IC = 0 A; Tamb = 25 °C 3
DC current gain hFE 300 VCE = 5 V; IC = 1 mA; Tamb = 25 °C 3
DC current gain hFE 300 900 VCE = 5 V; IC = 500 mA; Tamb = 25 °C 3
DC current gain hFE 200 VCE = 5 V; IC = 1 A; Tamb = 25 °C 3
Collector-emitter saturation voltage VCEsat 200 mV IC = 100 mA; IB = 1 mA; Tamb = 25 °C 3
Collector-emitter saturation voltage VCEsat 250 mV IC = 500 mA; IB = 50 mA; Tamb = 25 °C 3
Collector-emitter saturation voltage VCEsat 500 mV IC = 1 A; IB = 100 mA; Tamb = 25 °C 3
Collector-emitter saturation resistance RCEsat 260 500 mΩ IC = 500 mA; IB = 50 mA; pulsed; tp ≤ 300 µs; δ ≤ 0.02; Tamb = 25 °C 3
Base-emitter saturation voltage VBEsat 1.2 V IC = 1 A; IB = 100 mA; Tamb = 25 °C 3
Base-emitter turn-on voltage VBEon 1.1 V VCE = 5 V; IC = 1 A; Tamb = 25 °C 3
Transition frequency fT 150 MHz VCE = 10 V; IC = 50 mA; f = 100 MHz; Tamb = 25 °C 3
Collector capacitance Cc 10 pF VCB = 10 V; IE = 0 A; ie = 0 A; f = 1 MHz; Tamb = 25 °C 3

CAD (KiCad official)

  • Symbol: PBSS4140T
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: pbss4140t-etched.step / pbss4140t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pbss4140t.step / pbss4140t.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (9 pp, sha256 50004b2846871107, retrieved 2026-10-18, 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