component

BC817K-25HVL

Public Made by Adom

by adom

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

componenttriode-mos tube-transistorbc817k-25hvlfactory-2.0.0extractor-text

Verified BC817K-25HVL

by Ray · last 2 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

2 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BC817K-25HVL · SOT-23 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 25-page datasheet
  • ✓distributor: lcsc C5205188, digikey 1727-7524-2-ND, mouser 771-BC817K-25HVL
  • ✓family: SOT-23
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-0vjgtgac/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bc817k-25hvl.kicad_sym✓ bc817k-25hvl.kicad_mod✓ bc817k-25hvl.step
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Ray Publish 0.1.0 dc7c277 3d ago

BC817K-25HVL

Nexperia · Bipolar Transistors - BJT · SOT-23

BC817K-25HVL 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 NPN transistor; peak base current IBM is limited to 200 mA for a single pulse with tp ≤ 1 ms.
2 E passive Emitter terminal of the NPN transistor; emitter-base voltage VEBO is limited to 7 V.
3 C passive Collector terminal of the NPN transistor; collector current IC is limited to 500 mA and collector-emitter voltage VCEO to 45 V.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-23
Category Triode/MOS Tube/Transistor
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 3
collector-emitter voltage VCEO 45 V open base 3
emitter-base voltage VEBO 7 V open collector 3
collector current IC 500 mA 3
peak collector current ICM 1 A single pulse; tp ≤ 1 ms 3
peak base current IBM 200 mA single pulse; tp ≤ 1 ms 3
total power dissipation Ptot 425 mW Tamb ≤ 25 °C; FR4 PCB single-sided copper, standard footprint 3
total power dissipation Ptot 700 mW Tamb ≤ 25 °C; FR4 PCB single-sided copper, mounting pad for collector 1 cm2 3
total power dissipation Ptot 950 mW Tamb ≤ 25 °C; FR4 PCB 4-layer copper, mounting pad for collector 1 cm2 3
junction temperature Tj 175 °C 3
ambient temperature Tamb -55 175 °C 3
storage temperature Tstg -65 175 °C 3
thermal resistance from junction to ambient Rth(j-a) 353 K/W in free air; FR4 PCB single-sided copper, standard footprint 5
thermal resistance from junction to ambient Rth(j-a) 215 K/W in free air; FR4 PCB single-sided copper, mounting pad for collector 1 cm2 5
thermal resistance from junction to ambient Rth(j-a) 158 K/W in free air; FR4 PCB 4-layer copper, mounting pad for collector 1 cm2 5
thermal resistance from junction to solder point Rth(j-sp) 60 K/W 5
collector-base breakdown voltage V(BR)CBO 50 V IC = 100 µA; IE = 0 A 7
collector-emitter breakdown voltage V(BR)CEO 45 V IC = 10 mA; IB = 0 A 7
emitter-base breakdown voltage V(BR)EBO 7 V IE = 100 µA; IC = 0 A 7
collector-base cut-off current ICBO 100 nA VCB = 25 V; IE = 0 A 7
collector-base cut-off current ICBO 5 μA VCB = 25 V; IE = 0 A; Tj = 150 °C 7
emitter-base cut-off current IEBO 100 nA VEB = 5 V; IC = 0 A 7
DC current gain BC817K-25H hFE 160 400 - VCE = 1 V; IC = 100 mA; pulsed tp ≤ 300 μs; δ ≤ 0.02 7
DC current gain BC817K-16H, -25H, -40H hFE 40 - VCE = 1 V; IC = 500 mA; pulsed tp ≤ 300 μs; δ ≤ 0.02 7
collector-emitter saturation voltage VCEsat 700 mV IC = 500 mA; IB = 50 mA; pulsed tp ≤ 300 μs; δ ≤ 0.02 7
base-emitter saturation voltage VBEsat 1.2 V IC = 500 mA; IB = 50 mA; pulsed tp ≤ 300 μs; δ ≤ 0.02 7
base-emitter voltage VBE 1.2 V VCE = 1 V; IC = 500 mA; pulsed tp ≤ 300 μs; δ ≤ 0.02 7
transition frequency fT 100 MHz VCE = 5 V; IC = 10 mA; f = 100 MHz 7
emitter capacitance BC817K-25H Ce 39 pF VEB = 0.5 V; IC = ic = 0 A; f = 1 MHz 7
collector capacitance Cc 3 pF VCB = 10 V; IE = ie = 0 A; f = 1 MHz 7

CAD (KiCad official)

  • Symbol: BC817K-25HVL
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bc817k-25hvl-etched.step / bc817k-25hvl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc817k-25hvl.step / bc817k-25hvl.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (25 pp, sha256 909b94482c9f84ba, retrieved 2026-11-02, 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