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2SC2859

Public Made by Adom

by adom

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

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2SC2859

Changjing · Bipolar (BJT) · SOT-23

2SC2859 from Changjing, 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 terminal of the 2SC2859 NPN transistor; the datasheet rates emitter-base voltage VEBO at 5 V and collector current IC at 500 mA maximum.
2 EMITTER passive Emitter terminal of the 2SC2859 NPN transistor; emitter-base breakdown voltage V(BR)EBO is specified at 5 V minimum.
3 COLLECTOR passive Collector terminal of the 2SC2859 NPN transistor; the datasheet limits collector-base voltage VCBO to 35 V and collector-emitter voltage VCEO to 30 V.

Key specifications

Parameter Value
Manufacturer Changjing
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 35 V Ta=25℃ 1
Collector-Emitter Voltage VCEO 30 V Ta=25℃ 1
Emitter-Base Voltage VEBO 5 V Ta=25℃ 1
Collector Current IC 500 mA Ta=25℃ 1
Collector Power Dissipation PC 150 mW Ta=25℃ 1
Operation Junction and Storage Temperature Range TJ,Tstg -55 150 ℃ 1
Collector-base breakdown voltage V(BR)CBO 35 V IC=100µA, IE=0 1
Collector-emitter breakdown voltage V(BR)CEO 30 V IC=1mA, IB=0 1
Emitter-base breakdown voltage V(BR)EBO 5 V IE=100µA, IC=0 1
Collector cut-off current ICBO 0.1 µA VCB=35V, IE=0 1
Emitter cut-off current IEBO 0.1 µA VEB=5V, IC=0 1
DC current gain hFE(1) hFE(1) 70 400 VCE=1V, IC=100mA 1
DC current gain hFE(2) hFE(2) 25 VCE=6V, IC=400mA 1
Collector-emitter saturation voltage VCE(sat) 0.25 V IC=100mA, IB=10mA 1
Base-emitter voltage VBE 1 V VCE=1V,IC=100mA 1
Transition frequency fT 300 MHz VCE=6V,IC=20mA 1
Collector output capacitance Cob 7 pF VCB=6V, IE=0, f=1MHz 1
Thermal Resistance From Junction To Ambient RΘJA 833 ℃/W 1

CAD (KiCad official)

  • Symbol: 2SC2859
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: 2sc2859-etched.step / 2sc2859-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sc2859.step / 2sc2859.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (4 pp, sha256 042959d20c348d48, retrieved 2026-10-17, tier: lcsc)
  • 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