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KTA1505

Public Made by Adom

by adom

Changjing Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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KTA1505

Changjing · Bipolar (BJT) · SOT-23

KTA1505 from Changjing, in a SOT-23. 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 PNP transistor; the datasheet gives the emitter-base breakdown limit V(BR)EBO of -5 V minimum and an emitter-base voltage rating VEBO of -5 V.
2 EMITTER passive Emitter terminal of the PNP transistor; the datasheet gives a maximum collector current IC of -500 mA and a total collector power dissipation PC of 150 mW.
3 COLLECTOR passive Collector terminal of the PNP transistor; the datasheet gives a collector-base voltage VCBO of -35 V, a collector-emitter voltage VCEO of -30 V, and a collector current IC of -500 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23
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 -35 V IC=-100μA,IE=0 1
Collector-emitter breakdown voltage V(BR)CEO -30 V IC=-1mA,IB=0 1
Emitter-base breakdown voltage V(BR)EBO -5 V IE=-100μA,IC=0 1
Collector cut-off current ICBO -0.1 μA VCB=-35V,IE=0 1
Emitter cut-off current IEBO -0.1 μA VEB=-5V,IC=0 1
DC current gain hFE(1) 70 400 VCE=-1V,IC=-100mA 1
DC current gain hFE(2) 25 VCE=-6V,IC=-400mA 1
Collector-emitter saturation voltage VCE(sat) -0.25 V IC=-100mA,IB=-10mA 1
Base-emitter voltage VBE -1 V VCE=-1V,IC=-100mA 1
Transition frequency fT 200 MHz VCE=-6V,IC=-20mA 1
Collector output capacitance Cob 13 pF VCB=-6V,IE=0,f=1MHz 1
Collector-Base Voltage VCBO -35 V 1
Collector-Emitter Voltage VCEO -30 V 1
Emitter-Base Voltage VEBO -5 V 1
Collector Current IC -500 mA 1
Collector Power Dissipation PC 150 mW 1
Thermal Resistance From Junction To Ambient RΘJA 833 ℃/W 1
Operation Junction and Storage Temperature Range TJ,Tstg -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: KTA1505
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: kta1505-etched.step / kta1505-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kta1505.step / kta1505.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (4 pp, sha256 2ca22f49467d8e7a, 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