component

KTC4375Y

Public Made by Adom

by adom

Changjing Digital Transistors, SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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KTC4375Y

Changjing · Digital Transistors · SOT-89-3L

KTC4375Y from Changjing, in a SOT-89-3L. 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 passive Base terminal of the NPN transistor; the datasheet limits VEBO to 5 V and IB to 30 mA in the VCE(sat) test condition (IC=1.5 A, IB=30 mA).
2 COLLECTOR passive Collector terminal of the NPN transistor, rated for VCBO 30 V, VCEO 30 V, IC 1.5 A continuous, and PC 0.5 W collector power dissipation.
3 EMITTER passive Emitter terminal of the NPN transistor, with the datasheet limits of VEBO 5 V and junction/storage temperature range TJ, Tstg of -55 to 150 °C.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-89-3L
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-emitter voltage VCEO 30 V 1
Collector-base voltage VCBO 30 V 1
Emitter-base voltage VEBO 5 V 1
Collector current, continuous IC 1.5 A 1
Collector power dissipation PC 0.5 W 1
Operation junction and storage temperature range TJ,Tstg -55 150 ℃ 1
Collector-base breakdown voltage V(BR)CBO 30 V IC=1mA,IE=0 1
Collector-emitter breakdown voltage V(BR)CEO 30 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 0.1 μA VCB=30V,IE=0 1
Emitter cut-off current IEBO 0.1 μA VEB=5V,IC=0 1
DC current gain hFE 100 320 VCE=2V,IC=0.5A 1
Collector-emitter saturation voltage VCE(sat) 2 V IC=1.5A,IB=30mA 1
Base-emitter voltage VBE 1 V VCE=2V,IC=0.5A 1
Transition frequency fT 120 MHz VCE=2V,IC=500mA 1
Collector output capacitance Cob 40 pF VCB=10V,IE=0,f=1MHz 1

CAD (KiCad official)

  • Symbol: KTC4375Y
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3L (KiCad packages3D, STEP)
  • 3D model files: ktc4375y-etched.step / ktc4375y-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ktc4375y.step / ktc4375y.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (4 pp, sha256 e21a5dcb3fcd27fe, retrieved 2026-10-17, 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