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Contents

README

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KTA1023-Y-AT

KEC Semicon · Bipolar (BJT) · TO-92-3

KTA1023-Y-AT from KEC Semicon, in a TO-92-3. 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 PNP transistor, rated for an emitter current of 800 mA (maximum rating table).
2 COLLECTOR passive Collector terminal of the PNP transistor, rated for a collector current of -800 mA and a collector-emitter voltage VCEO of -120 V.
3 BASE passive Base terminal of the PNP transistor, rated for an emitter-base voltage VEBO of -5 V.

Key specifications

Parameter Value
Manufacturer KEC Semicon
Package TO-92-3
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
Emitter Cut-off Current IEBO -100 nA VEB=-5V, IC=0 1
Collector Cut-off Current ICBO -100 nA VCB=-120V, IE=0 1
Collector-Emitter Saturation Voltage (row label as printed; symbol V(BR)CEO) V(BR)CEO -120 V IC=-10mA, IB=0 1
Emitter-Base Breakdwon Voltage V(BR)EBO -5 V IE=-1mA, IC=0 1
DC Current Gain (Y class) hFE 120 240 VCE=-5V, IC=-100mA 1
Collector-Emitter Saturation Voltage VCE(sat) -1 V IC=-500mA, IB=-50mA 1
Base-Emitter Voltage VBE -1 V VCE=-5V, IC=-500mA 1
Collector Output Capacitance Cob 40 pF VCB=-10V, IE=0, f=1MHz 1
Collector-Base Voltage VCBO -120 V Ta=25 1
Collector-Emitter Voltage VCEO -120 V Ta=25 1
Emitter-Base Voltage VEBO -5 V Ta=25 1
Collector Current IC -800 mA Ta=25 1
Emitter Current IE 800 mA Ta=25 1
Collector Power Dissipation PC 1 W Ta=25 1
Junction Temperature Tj 150 1
Storage Temperature Range Tstg -55 150 1

CAD (KiCad official)

  • Symbol: KTA1023-Y-AT
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: kta1023-y-at-etched.step / kta1023-y-at-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kta1023-y-at.step / kta1023-y-at.glb are the bare package body.

Provenance

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

  • Datasheet: KEC Semicon datasheet (2 pp, sha256 31dad423da284fc4, 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