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KTC1027-Y-AT

Public Made by Adom

by adom

KEC Semicon Bipolar (BJT), TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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KTC1027-Y-AT

KEC Semicon · Bipolar (BJT) · TO-92-3

KTC1027-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; VEBO max 5 V and emitter current IE max -800 mA.
2 COLLECTOR passive Collector; VCBO and VCEO max 120 V, IC max 800 mA.
3 BASE passive Base; VCE(sat) max 1.0 V at IC=500 mA, IB=50 mA.

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
Collector-Base Voltage VCBO 120 V 1
Collector-Emitter Voltage VCEO 120 V 1
Emitter-Base Voltage VEBO 5 V 1
Collector Current IC 800 mA 1
Emitter Current IE -800 mA 1
Collector Power Dissipation PC 1 W 1
Junction Temperature Tj 150 °C 1
Storage Temperature Range Tstg -55 150 °C 1
Collector-Emitter Breakdown Voltage V(BR)CEO 120 V IC=10mA, IB=0 1
Emitter-Base Breakdown Voltage V(BR)EBO 5 V IE=1mA, IC=0 1
Collector Cut-off Current ICBO 100 nA VCB=120V, IE=0 1
Emitter Cut-off Current IEBO 100 nA VEB=5V, IC=0 1
DC Current Gain (Y classification) 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 30 pF VCB=10V, IE=0, f=1MHz 1

CAD (KiCad official)

  • Symbol: KTC1027-Y-AT
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: ktc1027-y-at-etched.step / ktc1027-y-at-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ktc1027-y-at.step / ktc1027-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 0a54d7f950caa4b3, retrieved 2026-10-17, 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