component

MMBT2222A 1P

Public Made by Adom

by adom

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

componenttransistors-thyristorsmmbt2222a 1pfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 28d ago
viewers mmbt2222a-1p: viewers · Ray 28d ago
mmbt2222a-1p-etched.glb mmbt2222a-1p: factory component page (tier=lcsc) · Ray 28d ago
mmbt2222a-1p-etched.step mmbt2222a-1p: factory component page (tier=lcsc) · Ray 28d ago
mmbt2222a-1p-hero.glb mmbt2222a-1p: hero GLB from the etched model (keeps the MPN mark) · Ray 28d ago
mmbt2222a-1p-hero.overlay.json Publish 0.1.0 · Ray 28d ago
mmbt2222a-1p.glb Publish 0.1.0 · Ray 28d ago
mmbt2222a-1p.kicad_mod Publish 0.1.0 · Ray 28d ago
mmbt2222a-1p.kicad_sym Publish 0.1.0 · Ray 28d ago
mmbt2222a-1p.lbr Publish 0.1.0 · Ray 28d ago
mmbt2222a-1p.step Publish 0.1.0 · Ray 28d ago
package.json Publish 0.1.0 · Ray 28d ago
page.json Set visibility: public · Ray 28d ago
README.md Publish 0.1.0 · Ray 28d ago

MMBT2222A 1P

Changjing · Bipolar (BJT) · SOT-23

MMBT2222A 1P 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 passive Base terminal of the NPN transistor; the datasheet gives an emitter-base voltage rating VEBO of 6 V and a base-emitter saturation voltage VBE(sat) of 1.2 V max at IC=150 mA, IB=15 mA.
2 EMITTER passive Emitter terminal of the NPN transistor; the datasheet gives an emitter-base breakdown voltage V(BR)EBO of 6 V with IE=10μA, IC=0.
3 COLLECTOR passive Collector terminal of the NPN transistor; the datasheet gives a collector-base voltage VCBO of 75 V, a collector-emitter voltage VCEO of 40 V, and a continuous collector current IC of 600 mA.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-23
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: MMBT2222A 1P
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbt2222a-1p-etched.step / mmbt2222a-1p-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbt2222a-1p.step / mmbt2222a-1p.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (2 pp, sha256 af383629b6a3bbb5, 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