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Contents

README

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2SD1664

hongjiacheng · Bipolar (BJT) · SOT-89

2SD1664 from hongjiacheng, in a SOT-89. 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 B input Base terminal of the NPN transistor; the datasheet gives an emitter-base voltage rating VEBO of 5.0 V and an emitter-base cut-off current IEBO of 0.5 µA max at VEB = 4.0 V.
2 C passive Collector terminal; the datasheet limits are collector-base voltage VCBO 40 V, collector current IC 1.0 A, and collector power dissipation PC 0.5 W.
3 E passive Emitter terminal; the collector-emitter breakdown voltage V(BR)CEO is 32 V minimum at IC = 1.0 mA, IB = 0.

Key specifications

Parameter Value
Manufacturer hongjiacheng
Package SOT-89
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: 2SD1664
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 2sd1664-etched.step / 2sd1664-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sd1664.step / 2sd1664.glb are the bare package body.

Provenance

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

  • Datasheet: hongjiacheng datasheet (3 pp, sha256 4dfb0580ac25a1f0, retrieved 2026-10-09, 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