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Contents

README

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BC847-JSM

JSMSEMI · Bipolar (BJT) · SOT-23

BC847-JSM from JSMSEMI, 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; BC847 VEBO maximum is 6 V.
2 EMITTER passive Emitter of the NPN transistor; BC847 VEBO (emitter-base) maximum is 6 V.
3 COLLECTOR passive Collector of the NPN transistor; BC847 VCEO is 45 V, VCBO is 50 V, and continuous IC is 0.1 A.

Key specifications

Parameter Value
Manufacturer JSMSEMI
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 (BC847) VCBO 50 V 1
Collector-Emitter Voltage (BC847) VCEO 45 V 1
Emitter-Base Voltage (BC847) VEBO 6 V 1
Collector Current - Continuous IC 0.1 A 1
Collector Dissipation PC 250 mW 1
Junction and Storage Temperature TJ, TSTG -55 150 ℃ 1
Thermal Resistance, Junction to Ambient RθJA 500 ℃/W 1
Collector-base breakdown voltage (BC847) V(BR)CBO 50 V IC=10μA,IE=0 2
Collector-emitter breakdown voltage (BC847) V(BR)CEO 45 V IC=10mA,IB=0 2
Emitter-base breakdown voltage (BC847) V(BR)EBO 6 V IE=10μA,IC=0 2
Collector-base cut-off current ICBO 15 nA VCB=30V,IE=0 2
Collector-base cut-off current ICBO 5 uA VCB=30V,IE=0,Tj=150℃ 2
Emitter-base cut-off current IEBO 100 nA VEB=5V,IC=0 2
Collector-emitter cut-off current ICEO 1 mA VCE=30V,IB=0 2
DC current gain (BC847A) hFE 110 200 420 VCE=5V,IC=2mA 2
DC current gain (BC847B) hFE 220 450 800 VCE=5V,IC=2mA 2
Collector-emitter saturation voltage VCE(sat) 0.09 0.2 V IC=10mA, IB=0.5mA 2
Collector-emitter saturation voltage VCE(sat) 0.25 0.6 V IC=100mA, IB=5mA 2
Base-emitter saturation voltage VBE(sat) 0.7 0.9 V IC=10mA, IB=0.5mA 2
Base-emitter saturation voltage VBE(sat) 0.9 1.1 V IC=100mA, IB=5mA 2
Base-emitter voltage VBE(on) 0.58 0.66 0.7 V IC=2mA,VCE=5V 2
Base-emitter voltage VBE(on) 0.77 V IC=10mA,VCE=5V 2

CAD (KiCad official)

  • Symbol: BC847-JSM
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bc847-jsm-etched.step / bc847-jsm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc847-jsm.step / bc847-jsm.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (6 pp, sha256 d5deff0dcea75a21, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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