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MMBT5401-B

Public Made by Adom

by adom

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

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Symbol & Footprint

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Contents

README

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MMBT5401-B

Foshan Blue Rocket Elec · Bipolar (BJT) · SOT-23

MMBT5401-B from Foshan Blue Rocket Elec, 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 silicon PNP transistor; the datasheet gives the emitter-to-base voltage rating as VEBO -6.0 V.
2 Emitter passive Emitter terminal of the silicon PNP transistor; the datasheet gives the collector current rating as IC -600 mA.
3 Collector passive Collector terminal of the silicon PNP transistor; the datasheet gives the collector-to-emitter voltage rating as VCEO -160 V and collector power dissipation as PC 300 mW.

Key specifications

Parameter Value
Manufacturer Foshan Blue Rocket Elec
Package SOT-23
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 to Base Voltage VCBO -180 V 2
Collector to Emitter Voltage VCEO -160 V 2
Emitter to Base Voltage VEBO -6 V 2
Collector Current IC -600 mA 2
Base Current IB -300 mA 2
Collector Power Dissipation PC 300 mW 2
Junction Temperature Tj 150 ℃ 2
Storage Temperature Range Tstg -55 150 ℃ 2
Collector Cut-Off Current ICBO -0.1 μA VCB=-180V IE=0 2
Emitter Cut-Off Current IEBO -0.1 μA VEB=-6.0V IC=0 2
DC Current Gain hFE(1) hFE(1) 50 200 400 VCE=-5.0V IC=-10mA 2
DC Current Gain hFE(2) hFE(2) 20 70 VCE=-5.0V IC=-50mA 2
DC Current Gain hFE(3) hFE(3) 40 180 VCE=-5.0V IC=-1.0mA 2
Collector-Emitter Saturation Voltage VCE(sat)(1) VCE(sat)(1) -0.12 -0.4 V IC=-10mA IB=-1.0mA 2
Collector-Emitter Saturation Voltage VCE(sat)(2) VCE(sat)(2) -0.5 -0.8 V IC=-50mA IB=-5.0mA 2
Base-Emitter Saturation Voltage VBE(sat)(1) VBE(sat)(1) -0.75 -1 V IC=-10mA IB=-1.0mA 2
Base-Emitter Saturation Voltage VBE(sat)(2) VBE(sat)(2) -0.8 -1 V IC=-50mA IB=-5.0mA 2
Base-Emitter Voltage VBE -0.7 -0.75 V VCE=-5.0V IC=-10mA 2
Transition Frequency fT 50 80 MHz VCE=-10V IC=-10mA 2
Collector Output Capacitance Cob 2.5 5 pF VCB=-10V IE=0 f=10MHz 2
Turn-on Time ton 0.1 μs IC=-100mA -IB1=IB2=-10mA 2
Storage Time toff 0.2 μs 2
Fall Time tstg 0.1 μs 2

CAD (KiCad official)

  • Symbol: MMBT5401-B
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbt5401-b-etched.step / mmbt5401-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbt5401-b.step / mmbt5401-b.glb are the bare package body.

Provenance

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

  • Datasheet: Foshan Blue Rocket Elec datasheet (6 pp, sha256 49ec44d0e692ae29, 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