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BU406DT9TL

Public Made by Adom

by adom

SPS Bipolar Transistors - BJT, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

markdown

BU406DT9TL

SPS · Bipolar Transistors - BJT · TO-252

BU406DT9TL from SPS, in a TO-252. 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 of the NPN transistor; VEBO max 6 V, IB max 4 A.
2 C passive Collector (also the tab); VCBO 400 V, VCEO 200 V, IC 7 A continuous, 10 A peak repetitive.
3 E passive Emitter of the NPN transistor, the common reference for the base and collector ratings.

Key specifications

Parameter Value
Manufacturer SPS
Package TO-252
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-Base Voltage VCBO 400 V Ta=25℃ 1
Collector-Emitter Voltage VCEO 200 V Ta=25℃ 1
Emitter-Base Voltage VEBO 6 V Ta=25℃ 1
Collector Current-Continuous IC 7 A Ta=25℃ 1
Collector Current-Peak Repetitive ICP 10 A Ta=25℃ 1
Collector Current-Peak (10ms) ICP 15 A Ta=25℃, 10ms 1
Base Current IB 4 A Ta=25℃ 1
Collector Power Dissipation PC 65 W TC=25℃ 1
Junction Temperature TJ 150 ℃ Ta=25℃ 1
Storage Temperature Range Tstg -55 150 ℃ 1
Thermal Resistance, Junction to Case Rth j-c 2.08 ℃/W 1
Thermal Resistance, Junction to Ambient Rth j-a 70 ℃/W 1
Collector-Emitter Sustaining Voltage VCEO(SUS) 150 V IC= 50mA; IB= 0 2
Collector-Emitter Saturation Voltage VCE(sat) 1 V IC= 5A; IB= 0.8A 2
Base-Emitter Saturation Voltage VBE(sat) 1.2 V IC= 5A; IB= 0.5A 2
Collector Cutoff Current ICES 5 mA VCE= 400V; VBE= 0 2
Collector Cutoff Current ICES 0.1 mA VCE=250V; VBE= 0 2
Emitter Cutoff Current IEBO 1 mA VEB= 6V; IC= 0 2
DC Current Gain hFE 60 80 IC= 2A; VCE= 5V 2
Current-Gain, Bandwidth Product fT 10 30 MHz IC= 0.5A; VCE= 10V 2
Fall Time tf 0.4 μs IC= 5A; IB1= -IB2= 0.8A 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 IB Base Current 4 A PC Collector Power Dissipation 1

CAD (KiCad official)

  • Symbol: BU406DT9TL
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: bu406dt9tl-etched.step / bu406dt9tl-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bu406dt9tl.step / bu406dt9tl.glb are the bare package body.

Provenance

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

  • Datasheet: SPS datasheet (2 pp, sha256 896c1d854a117c78, retrieved 2026-10-22, tier: lcsc)
  • 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