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PZTA42

Public Made by Adom

by adom

Changjing Bipolar (BJT), SOT-223. 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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docs pzta42: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
viewers pzta42: viewers · Ray 24d ago
package.json pzta42: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
page.json pzta42: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
pzta42-etched.glb pzta42: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
pzta42-etched.step pzta42: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
pzta42-hero.glb pzta42: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
pzta42-hero.overlay.json pzta42: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain STEP) · Ray 17d ago
pzta42.glb Publish 0.1.0 · Ray 24d ago
pzta42.kicad_mod Publish 0.1.0 · Ray 24d ago
pzta42.kicad_sym Publish 0.1.0 · Ray 24d ago
pzta42.lbr Publish 0.1.0 · Ray 24d ago
pzta42.step Publish 0.1.0 · Ray 24d ago
README.md pzta42: specified limits as data (metadata.characteristics, 19 rows from the datasheet) · Ray 19d ago

PZTA42

Changjing · Bipolar (BJT) · SOT-223

PZTA42 from Changjing, in a SOT-223. 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 PZTA42 NPN transistor; the datasheet gives no separate per-pin limit, and the emitter-base voltage rating is VEBO 6 V.
2 COLLECTOR passive Collector terminal of the PZTA42 NPN transistor, with collector-emitter voltage VCEO 300 V and continuous collector current IC 0.2 A (absolute maximum ratings).
3 EMITTER passive Emitter terminal of the PZTA42 NPN transistor, referenced in the datasheet's emitter-base rating VEBO 6 V and collector-emitter rating VCEO 300 V.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-223
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 300 V IC=100μA,IE=0 1
Collector-emitter breakdown voltage V(BR)CEO 300 V IC=1mA,IB=0 1
Emitter-base breakdown voltage V(BR)EBO 6 V IE=100μA,IC=0 1
Collector cut-off current ICBO 0.1 μA VCB=200V,IE=0 1
Emitter cut-off current IEBO 0.1 μA VEB=6V,IC=0 1
DC current gain hFE(1) 25 VCE=10V,IC=1mA 1
DC current gain hFE(2) 40 VCE=10V,IC=10mA 1
Collector-emitter saturation voltage VCE(sat) 0.5 V IC=20mA,IB=2mA 1
Base-emitter saturation voltage VBE(sat) 0.9 V IC=20mA,IB=2mA 1
Transition frequency fT 50 MHz VCE=20V,IC=10mA,f=100MHz 1
Collector output capacitance Cob 3 pF VCB=20V,IE=0,f=1MHz 1
Collector-base voltage VCBO 300 V 1
Collector-emitter voltage VCEO 300 V 1
Emitter-base voltage VEBO 6 V 1
Collector current -continuous IC 0.2 A 1
Collector current -pulsed ICM 0.5 A 1
Collector power dissipation PC 1 W 1
Junction temperature Tj 150 ℃ 1
Storage temperature Tstg -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: PZTA42
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: pzta42-etched.step / pzta42-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pzta42.step / pzta42.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (4 pp, sha256 70dd9f37673e0eb5, retrieved 2026-10-09, 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