component

BU406-220C

Public Made by Adom

by adom

Jilin Sino-Microelectronics Bipolar Transistors - BJT, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistorsbu406-220cfactory-2.0.0extractor-text

Verified BU406-220C

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BU406-220C · TO-220 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 6-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: TO-220-3_Vertical
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-cbx25ytf/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bu406-220c.kicad_sym✓ bu406-220c.kicad_mod✓ bu406-220c.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 6d ago
viewers bu406-220c: viewers · Ray 6d ago
bu406-220c-etched.glb Publish 0.1.0 · Ray 6d ago
bu406-220c-etched.step bu406-220c: factory component page (tier=lcsc) · Ray 6d ago
bu406-220c-hero.glb bu406-220c: pin labels beside their pads (component-hero#2, hero_glb a625f4b) · Ray 1d ago
bu406-220c-hero.overlay.json bu406-220c: pin labels beside their pads (component-hero#2, hero_glb a625f4b) · Ray 1d ago
bu406-220c.glb Publish 0.1.0 · Ray 6d ago
bu406-220c.kicad_mod Publish 0.1.0 · Ray 6d ago
bu406-220c.kicad_sym Publish 0.1.0 · Ray 6d ago
bu406-220c.lbr Publish 0.1.0 · Ray 6d ago
bu406-220c.step Publish 0.1.0 · Ray 6d ago
package.json Publish 0.1.1 · Ray 1d ago
page.json Publish 0.1.1 · Ray 1d ago
README.md Publish 0.1.0 · Ray 6d ago
verification.json Verified: Published by the parts factory: tier lcsc, 3 pins · Ray 6d ago

BU406-220C

Jilin Sino-Microelectronics · Bipolar Transistors - BJT · TO-220

BU406-220C from Jilin Sino-Microelectronics, in a TO-220. 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 B input Base terminal of the NPN transistor; absolute maximum DC base current is 4 A (8 A pulse) and emitter-base voltage VEBO is 9 V.
2 C passive Collector terminal; VCEO is 200 V, VCES is 400 V and maximum DC collector current is 7 A (10 A pulse).
3 E passive Emitter terminal of the NPN transistor; emitter-base breakdown voltage V(BR)EBO is 9 V minimum.

Key specifications

Parameter Value
Manufacturer Jilin Sino-Microelectronics
Package TO-220
Category Transistors
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 (VBE=0) VCES 400 V 2
Collector-Emitter Voltage (IB=0) VCEO 200 V 2
Emitter-Base Voltage VEBO 9 V 2
Collector Current (DC) IC 7 A 2
Collector Current (pulse) ICP 10 A 2
Base Current (DC) IB 4 A 2
Base Current (pulse) IBP 8 A 2
Total Dissipation (TO-220C) PC 60 W 2
Junction Temperature Tj 150 ℃ 2
Storage Temperature Tstg -55 150 ℃ 2
Thermal Resistance Junction Case TO-220C Rth(j-c) 2.08 ℃/W 2
Collector-Emitter Breakdown Voltage V(BR)CEO 200 V IC=10mA,IB=0 2
Collector-Base Breakdown Voltage V(BR)CBO 400 V IC=1mA,IE=0 2
Emitter-Base Breakdown Voltage V(BR)EBO 9 V IE=1mA,IC=0 2
Collector Cut-off Current ICBO 10 μA VCB=400V, IE=0 2
Collector Cut-off Current ICEO 50 μA VCE=200V,IB=0 2
Emitter Cut-off Current IEBO 10 μA VEB=9V, IC=0 2
DC Current Gain Hfe(1) 60 85 VCE =5V, IC=2A 2
DC Current Gain Hfe(2) 15 VCE =5V, IC=7A 2
Collector-Emitter Saturation Voltage VCE(sat) 1.5 V IC=5A, IB=500mA 2
Base-Emitter Saturation Voltage VBE(sat) 1.5 V IC=5A, IB=500mA 2
Transition Frequency fT 10 MHz VCE=10V, IC=0.5A 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing PC 最大基极脉冲电流 Base Current（pulse） IBP 8 A 最大集电极耗散功率 Total Dissipation (TO-220C) PC 60 W 2

CAD (KiCad official)

  • Symbol: BU406-220C
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: bu406-220c-etched.step / bu406-220c-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bu406-220c.step / bu406-220c.glb are the bare package body.

Provenance

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

  • Datasheet: Jilin Sino-Microelectronics datasheet (6 pp, sha256 be1a9d8050f32ee2, retrieved 2026-11-05, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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