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KTC3205

Public Made by Adom

by adom

Changjing Bipolar Transistors - BJT, TO-92L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttriode-mos tube-transistorktc3205factory-2.0.0extractor-text

Verified KTC3205

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: KTC3205 · TO-92L · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 6-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TO-92
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-ytx7buhb/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✓ ktc3205.kicad_sym✓ ktc3205.kicad_mod✓ ktc3205.step
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

KTC3205

Changjing · Bipolar Transistors - BJT · TO-92L

KTC3205 from Changjing, in a TO-92L. 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 EMITTER passive Emitter of the NPN transistor; VEBO max 5 V and collector current up to 2 A continuous.
2 COLLECTOR passive Collector of the NPN transistor; VCBO and VCEO are 30 V max, IC 2 A continuous, PC 1 W.
3 BASE passive Base of the NPN transistor; VEBO max 5 V with hFE of 100-320 at VCE=2 V, IC=500 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-92L
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 breakdown voltage V(BR)CBO 30 V Ic= 1mA , IE=0 2
Collector-emitter breakdown voltage V(BR)CEO 30 V IC= 10mA, IB=0 2
Emitter-base breakdown voltage V(BR)EBO 5 V IE= 1mA, IC=0 2
Collector cut-off current ICBO 0.1 µA VCB= 30V, IE=0 2
Emitter cut-off current IEBO 0.1 µA VEB= 5V, IC=0 2
DC current gain hFE 100 320 VCE= 2 V, IC= 500 mA 2
Collector-emitter saturation voltage VCE(sat) 2 V IC= 1.5A, IB= 30 mA 2
Base-emitter voltage VBE 1 V VCE=2V, IC= 500mA 2
Transition frequency fT 120 MHz VCE= 2 V, IC= 500mA 2
Collector output capacitance Cob 13 pF VCB=10V, IE=0,f=1MHZ 2
Collector-Base Voltage VCBO 30 V Ta=25℃ 1
Collector-Emitter Voltage VCEO 30 V Ta=25℃ 1
Emitter-Base Voltage VEBO 5 V Ta=25℃ 1
Collector Current -Continuous IC 2 A Ta=25℃ 1
Collector Power Dissipation PC 1 W Ta=25℃ 1
Operation Junction and Storage Temperature Range TJ,Tstg -55 150 ℃ Ta=25℃ 1
Thermal resistance, junction to ambient RθJA 125 ℃/W 4

CAD (KiCad official)

  • Symbol: KTC3205
  • Footprint: Package_TO_SOT_THT:TO-92
  • 3D model: TO-92L (KiCad packages3D, STEP)
  • 3D model files: ktc3205-etched.step / ktc3205-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ktc3205.step / ktc3205.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (6 pp, sha256 e6e72550b1b40823, retrieved 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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