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2SB647A

Public Made by Adom

by adom

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

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2SB647A

JSMSEMI · Bipolar (BJT) · TO-92L

2SB647A from JSMSEMI, 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 E passive Emitter of the PNP transistor; maximum emitter-base voltage is -5 V.
2 C passive Collector of the PNP transistor; VCBO -120 V, VCEO -80 V, IC max -1 A.
3 B passive Base of the PNP transistor; the base-emitter voltage is specified at up to -1.5 V (VCE=-5V, IC=-150mA).

Key specifications

Parameter Value
Manufacturer JSMSEMI
Package TO-92L
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 breakdown voltage V(BR)CBO -120 V IC=-10µA,IE=0 2
Collector-emitter breakdown voltage V(BR)CEO -80 V IC=-1mA,IB=0 2
Emitter-base breakdown voltage V(BR)EBO -5 V IE=-10µA,IC=0 2
Collector cut-off current ICBO -10 μA VCB=-100V,IE=0 2
DC current gain hFE(1) hFE(1) 60 320 VCE=-5V, IC=-150mA 2
DC current gain hFE(2) hFE(2) 30 VCE=-5V, IC=-500mA 2
Collector-emitter saturation voltage VCE(sat) -1 V IC=-500mA,IB=-50mA 2
Base-emitter voltage VBE -1.5 V VCE=-5V, IC=-150mA 2
Collector output capacitance Cob 20 pF VCB=-10V,IE=0, f=1MHz 2
Transition frequency fT 140 MHz VCE=-5V,IC=-150mA 2
Collector-base voltage VCBO -120 V Ta=25℃ unless otherwise noted 1
Collector-emitter voltage VCEO -80 V Ta=25℃ unless otherwise noted 1
Emitter-base voltage VEBO -5 V Ta=25℃ unless otherwise noted 1
Collector current IC -1 A Ta=25℃ unless otherwise noted 1
Collector power dissipation PC 750 mW Ta=25℃ unless otherwise noted 1
Operation junction and storage temperature range TJ,Tstg -55 150 ℃ 1
Thermal resistance from junction to ambient RθJA 167 ℃/W 1

CAD (KiCad official)

  • Symbol: 2SB647A
  • Footprint: Package_TO_SOT_THT:TO-92
  • 3D model: TO-92L (KiCad packages3D, STEP)
  • 3D model files: 2sb647a-etched.step / 2sb647a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sb647a.step / 2sb647a.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (3 pp, sha256 8c85c2c6d10f7f55, 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