component

2SA950

Public Made by Adom

by adom

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

componenttriode-mos tube-transistor2sa950factory-2.0.0extractor-text

Verified 2SA950

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: 2SA950 · TO-92 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 5-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TO-92_Inline
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-2y2hww4b/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): the datasheet dimensions give no height or body size to compare (datasheet p.4)
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ 2sa950.kicad_sym✓ 2sa950.kicad_mod✓ 2sa950.step
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 1d ago
viewers 2sa950: viewers · Ray 1d ago
2sa950-etched.glb Publish 0.1.0 · Ray 1d ago
2sa950-etched.step 2sa950: factory component page (tier=lcsc) · Ray 1d ago
2sa950-hero.glb 2sa950: hero GLB from the etched model (keeps the MPN mark) · Ray 1d ago
2sa950-hero.overlay.json Publish 0.1.0 · Ray 1d ago
2sa950.glb Publish 0.1.0 · Ray 1d ago
2sa950.kicad_mod Publish 0.1.0 · Ray 1d ago
2sa950.kicad_sym Publish 0.1.0 · Ray 1d ago
2sa950.lbr Publish 0.1.0 · Ray 1d ago
2sa950.step Publish 0.1.0 · Ray 1d ago
package.json Publish 0.1.0 · Ray 1d ago
page.json Set visibility: public · Ray 1d ago
README.md Publish 0.1.0 · Ray 1d ago
verification.json Verified: Published by the parts factory: tier lcsc, 3 pins · Ray 1d ago

2SA950

Changjing · Bipolar Transistors - BJT · TO-92

2SA950 from Changjing, in a TO-92. 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 PNP transistor; emitter-base breakdown voltage V(BR)EBO is -5 V minimum at IE=-0.1 mA.
2 COLLECTOR passive Collector of the PNP transistor; collector-emitter breakdown voltage is -30 V minimum at IC=-10 mA and collector power dissipation is 600 mW.
3 BASE passive Base of the PNP transistor; collector-base breakdown voltage V(BR)CBO is -35 V minimum at IC=-0.1 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-92
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 -35 V IC= -0.1mA, 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= -0.1mA, IC=0 2
Collector cut-off current ICBO -0.1 µA VCB= -35V, IE=0 2
Emitter cut-off current IEBO -0.1 µA VEB= -5V, IC=0 2
DC current gain hFE(1) 100 320 VCE=-1V, IC=-100mA 2
DC current gain hFE(2) 35 VCE=-1V, IC= -700mA 2
Collector-emitter saturation voltage VCE(sat) -0.7 V IC= -500mA, IB= -20mA 2
Emitter-base voltage VBE -0.5 -0.8 V VCE=-1V, IC=-10mA 2
Collector Output Capacitance Cob 19 pF VCB=-10V, IE=0, f=1MHz 2
Transition frequency fT 120 MHz VCE=-5V, IC=-10mA 2
Collector-Emitter Voltage VCEO -30 V 1
Collector Power Dissipation PC 600 mW 1

CAD (KiCad official)

  • Symbol: 2SA950
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: 2sa950-etched.step / 2sa950-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sa950.step / 2sa950.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (5 pp, sha256 40332307412d4ab0, 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