component

2SC2873SQ-Y

Public Made by Adom

by adom

PJSEMI Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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2SC2873SQ-Y

PJSEMI · Bipolar (BJT) · SOT-89

2SC2873SQ-Y from PJSEMI, in a SOT-89. 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 passive Base terminal of the NPN transistor; the datasheet gives the emitter-base limit VEBO of 5 V and the emitter-base breakdown V(BR)EBO minimum of 5 V.
2 Collector passive Collector terminal of the NPN transistor, rated for VCBO 50 V, VCEO 50 V and collector current IC 2 A.
3 Emitter passive Emitter terminal of the NPN transistor, referenced by the emitter-base rating VEBO of 5 V.

Key specifications

Parameter Value
Manufacturer PJSEMI
Package SOT-89
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
DC Current Gain (Y group) HFE 120 240 at VCE = 2 V, IC = 500 mA 2
DC Current Gain HFE 20 at VCE = 2 V, IC = 2 A 2
Collector Base Cutoff Current ICBO 100 nA at VCB = 50 V 2
Emitter Base Cutoff Current IEBO 100 nA at VEB = 5 V 2
Collector Base Breakdown Voltage V(BR)CBO 50 V at IC = 100 μA 2
Collector Emitter Breakdown Voltage V(BR)CEO 50 V at IC = 1 mA 2
Emitter Base Breakdown Voltage V(BR)EBO 5 V at IE = 100 μA 2
Collector Emitter Saturation Voltage VCE(sat) 0.5 V at IC = 1 A, IB = 50 mA 2
Base Emitter Saturation Voltage VBE(sat) 1.2 V at IC = 1 A, IB = 50 mA 2
Collector Base Voltage VCBO 50 V 1
Collector Emitter Voltage VCEO 50 V 1
Emitter Base Voltage VEBO 5 V 1
Collector Current IC 2 A 1
Maximum Power Dissipation PD 0.5 W 1
Junction Temperature TJ 150 ℃ 1
Storage Temperature Range TSTG -55 150 ℃ 1
Thermal Resistance Junction to Ambient RθJA 250 ℃/W 1

CAD (KiCad official)

  • Symbol: 2SC2873SQ-Y
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 2sc2873sq-y-etched.step / 2sc2873sq-y-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sc2873sq-y.step / 2sc2873sq-y.glb are the bare package body.

Provenance

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

  • Datasheet: PJSEMI datasheet (6 pp, sha256 fc933d539350ce57, retrieved 2026-10-18, 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