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ZTX657STZ

Diodes Incorporated · Bipolar Transistors - BJT · TO-92

ZTX657STZ from Diodes Incorporated, 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 C passive Collector, with VCEO of 300 V, VCBO of 300 V and continuous collector current IC of 0.5 A (peak 1 A) for the ZTX657.
2 B passive Base, with emitter-base voltage VEBO limited to 5 V.
3 E passive Emitter, the common terminal of the NPN transistor, with total power dissipation Ptot of 1 W at Tamb=25°C.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package TO-92
Category Triode/MOS Tube/Transistor
Pins 3

CAD (KiCad official)

  • Symbol: ZTX657STZ
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92 (KiCad packages3D, STEP)
  • 3D model files: ztx657stz-etched.step / ztx657stz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ztx657stz.step / ztx657stz.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (2 pp, sha256 a65b3fc65a622ea3, retrieved 2026-10-27, 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