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C1815 120~240-TA

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Changjiang Electronics Tech (CJ) Bipolar Transistors - BJT, TO-92. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistorsc1815 120~240-tafactory-2.0.0extractor-text

Verified C1815 120~240-TA

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 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: C1815 120~240-TA · TO-92 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 2-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-teul53sp/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ c1815-120-240-ta.kicad_sym✓ c1815-120-240-ta.kicad_mod✓ c1815-120-240-ta.step
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Contents

README

markdown

C1815 120~240-TA

Changjiang Electronics Tech (CJ) · Bipolar Transistors - BJT · TO-92

C1815 120~240-TA from Changjiang Electronics Tech (CJ), 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 terminal of the NPN transistor; the datasheet gives a maximum emitter-base voltage VEBO of 5 V.
2 COLLECTOR passive Collector terminal of the NPN transistor; the datasheet gives a maximum collector-emitter voltage VCEO of 50 V and continuous collector current IC of 150 mA.
3 BASE input Base terminal of the NPN transistor that controls the device; the datasheet gives a maximum collector-base voltage VCBO of 60 V.

Key specifications

Parameter Value
Manufacturer Changjiang Electronics Tech (CJ)
Package TO-92
Category Transistors
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 60 V IC= 100uA, IE=0 1
Collector-emitter breakdown voltage V(BR)CEO 50 V IC= 0.1mA, IB=0 1
Emitter-base breakdown voltage V(BR)EBO 5 V IE= 100uA, IC=0 1
Collector cut-off current ICBO 0.1 uA VCB= 60V, IE=0 1
Emitter cut-off current IEBO 0.1 uA VEB=5V, IC=0 1
DC current gain (rank Y, 120-240) hFE 120 240 VCE= 6 V, IC= 2mA 1
Collector-emitter saturation voltage VCE(sat) 0.25 V IC=100mA, IB=10mA 1
Base-emitter saturation voltage VBE(sat) 1 V IC=100mA, IB=10mA 1
Transition frequency fT 80 MHz VCE=10 V, IC= 1mA, f=30MHz 1
Collector output capacitance Cob 3.5 pF VCB=10V, IE=0, f=1MHz 1
Noise figure NF 10 dB VCE=6V, IC=0.1mA, f=1KHz, RG=10K 1
Collector-base voltage VCBO 60 V 1
Collector-emitter voltage VCEO 50 V 1
Emitter-base voltage VEBO 5 V 1
Collector current, continuous IC 150 mA 1
Collector power dissipation PC 400 mW 1
Junction temperature Tj 150 ℃ 1
Storage temperature Tstg -55 150 ℃ 1
Thermal resistance from junction to ambient RθJA 312 ℃/W 1

CAD (KiCad official)

  • Symbol: C1815 120~240-TA
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: c1815-120-240-ta-etched.step / c1815-120-240-ta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); c1815-120-240-ta.step / c1815-120-240-ta.glb are the bare package body.

Provenance

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

  • Datasheet: Changjiang Electronics Tech (CJ) datasheet (2 pp, sha256 ee68fd79ceafdf7e, retrieved 2026-10-30, 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