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2SD1815

Public Made by Adom

by adom

Changjing Bipolar (BJT), TO-252-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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2SD1815

Changjing · Bipolar (BJT) · TO-252-2L

2SD1815 from Changjing, in a TO-252-2L. 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 terminal of the NPN transistor, driven with IB1 = -0.15 A in the switching test and tied to VBE(sat) of 1.2 V at IC = 1.5 A, IB = 150 mA.
2 COLLECTOR passive Collector terminal, rated for VCBO 120 V, VCEO 100 V and 3 A continuous collector current, with a maximum collector power dissipation of 1 W.
3 EMITTER passive Emitter terminal, referenced by the emitter-base rating VEBO of 6 V and the emitter-base breakdown test at IE = 10 µA.

Key specifications

Parameter Value
Manufacturer Changjing
Package TO-252-2L
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 1
Collector-emitter breakdown voltage V(BR)CEO 100 V IC=1mA, IB=0 1
Emitter-base breakdown voltage V(BR)EBO 6 V IE=10μA, IC=0 1
Collector cut-off current ICBO 1 μA VCB=100V, IE=0 1
Emitter cut-off current IEBO 1 μA VEB=4V, IC=0 1
DC current gain hFE(1) hFE(1) 70 400 VCE=5V, IC=500mA 1
DC current gain hFE(2) hFE(2) 40 VCE=5V, IC=2A 1
Collector-emitter saturation voltage VCE(sat) 0.4 V IC=1.5A, IB=150mA 1
Base-emitter saturation voltage VBE(sat) 1.2 V IC=1.5A, IB=150mA 1
Collector-base voltage VCBO 120 V 1
Collector-emitter voltage VCEO 100 V 1
Emitter-base voltage VEBO 6 V 1
Collector current - continuous IC 3 A 1
Collector power dissipation PC 1 W 1
Junction temperature TJ 150 ℃ 1
Storage temperature Tstg -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: 2SD1815
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2L (KiCad packages3D, STEP)
  • 3D model files: 2sd1815-etched.step / 2sd1815-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sd1815.step / 2sd1815.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (3 pp, sha256 24bf4481068189a8, 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