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BCX17

Public Made by Adom

by adom

Nexperia Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BCX17

Nexperia · Bipolar (BJT) · SOT-23

BCX17 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 passive Base terminal of the PNP transistor; the datasheet limits peak base current to IBM = -200 mA.
2 E passive Emitter terminal of the PNP transistor; the emitter-base voltage is limited to VEBO = -5 V (open collector).
3 C passive Collector terminal of the PNP transistor; the collector current is limited to IC = -500 mA (peak ICM = -1 A) with VCEO = -45 V (open base).

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 -50 V open emitter 2
collector-emitter voltage VCEO -45 V open base 2
emitter-base voltage VEBO -5 V open collector 2
collector current IC -500 mA 2
peak collector current ICM -1 A 2
peak base current IBM -200 mA 2
total power dissipation Ptot 250 mW Tamb ≤ 25 °C; [1] FR4 PCB, single-sided copper, standard footprint 2
total power dissipation Ptot 345 mW Tamb ≤ 25 °C; [2] FR4 PCB, single-sided copper, mounting pad for collector 1 cm2 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 in free air Rth(j-a) 500 K/W [1] FR4 PCB, single-sided copper, tin-plated, standard footprint 3
thermal resistance from junction to ambient in free air Rth(j-a) 362 K/W [2] FR4 PCB, single-sided copper, tin-plated, mounting pad for collector 1 cm2 3
collector-base cut-off current ICBO -100 nA VCB = -20 V; IE = 0 A; Tj = 25 °C 4
collector-base cut-off current ICBO -5 µA VCB = -20 V; IE = 0 A; Tj = 150 °C 4
emitter-base cut-off current IEBO -100 nA VEB = -5 V; IC = 0 A; Tj = 25 °C 4
DC current gain hFE 100 600 VCE = -1 V; IC = -100 mA; Tj = 25 °C 4
DC current gain hFE 70 VCE = -1 V; IC = -300 mA; Tj = 25 °C 4
DC current gain hFE 40 VCE = -1 V; IC = -500 mA; Tj = 25 °C 4
collector-emitter saturation voltage VCEsat -620 mV IC = -500 mA; IB = -50 mA; Tj = 25 °C 4
base-emitter voltage VBE -1.2 V VCE = -1 V; IC = -500 mA; Tj = 25 °C; [1] 4
transition frequency fT 80 MHz VCE = -5 V; IC = -10 mA; f = 100 MHz; Tj = 25 °C 4

CAD (KiCad official)

  • Symbol: BCX17
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bcx17-etched.step / bcx17-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bcx17.step / bcx17.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (10 pp, sha256 9e7c3d1863edde79, retrieved 2026-10-14, 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