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2SD1781KR

Public Made by Adom

by adom

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

componenttransistors2sd1781krfactory-2.0.0extractor-text

Verified 2SD1781KR

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: 2SD1781KR · SOT-23 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 4-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-23
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-sziyeo7z/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✓ 2sd1781kr.kicad_sym✓ 2sd1781kr.kicad_mod✓ 2sd1781kr.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

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2SD1781KR

Shikues · Bipolar Transistors - BJT · SOT-23

2SD1781KR from Shikues, 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 BASE input Base of the NPN transistor; emitter-base voltage rated 5 V max (VEBO) and V(BR)EBO min 5 V at IE=100µA.
2 EMITTER passive Emitter of the NPN transistor; collector current up to 500 mA continuous.
3 COLLECTOR passive Collector of the NPN transistor; VCBO 40 V, VCEO 25 V, IC 500 mA continuous, dissipation 300 mW.

Key specifications

Parameter Value
Manufacturer Shikues
Package SOT-23
Category Transistors
Pins 3

CAD (KiCad official)

  • Symbol: 2SD1781KR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: 2sd1781kr-etched.step / 2sd1781kr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sd1781kr.step / 2sd1781kr.glb are the bare package body.

Provenance

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

  • Datasheet: Shikues datasheet (4 pp, sha256 e14b8d0f7d2ce320, retrieved 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-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