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S-LMBT2222ALT1G

Public Made by Adom

by adom

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

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S-LMBT2222ALT1G

LRC · Bipolar (BJT) · SOT-23

S-LMBT2222ALT1G from LRC, 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 general-purpose transistor; the device absolute maximum ratings apply, including emitter-base voltage VEBO 6 V and continuous collector current IC 600 mA.
2 EMITTER passive Emitter terminal of the NPN general-purpose transistor; the device absolute maximum ratings apply, including collector-emitter voltage VCEO 40 V.
3 COLLECTOR passive Collector terminal of the NPN general-purpose transistor; the device absolute maximum ratings apply, including collector-base voltage VCBO 75 V and continuous collector current IC 600 mA.

Key specifications

Parameter Value
Manufacturer LRC
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-Emitter Breakdown Voltage VBR(CEO) 40 V IC = 10 mA, IB = 0 2
Collector-Base Breakdown Voltage VBR(CBO) 75 V IC = 10 μA, IE = 0 2
Emitter-Base Breakdown Voltage VBR(EBO) 6 V IE = 10 μA, IC = 0 2
Collector Cutoff Current ICEX 10 nA VCE = 60 V, VEB(off) = 3.0 V 2
Collector Cutoff Current ICBO 0.01 μA VCB = 60 V, IE = 0 2
Collector Cutoff Current ICBO 10 μA VCB = 60 V, IE = 0, TA = 125°C 2
Emitter Cutoff Current IEBO 100 nA VEB = 3.0 V, IC = 0 2
Base Cutoff Current IBL 20 nA VCE = 60 V, VEB(off) = 3.0 V 2
Collector-Emitter cutoff Current ICEO 10 μA VCE = 40 V, IB = 0 2
DC Current Gain HFE 35 IC = 0.1 mA, VCE = 10 V 2
DC Current Gain HFE 50 IC = 1.0 mA, VCE = 10 V 2
DC Current Gain HFE 75 IC = 10 mA, VCE = 10 V 2
DC Current Gain HFE 100 300 IC = 150 mA, VCE = 10 V 2
DC Current Gain HFE 40 IC = 500 mA, VCE = 10 V 2
Collector-Emitter Saturation Voltage VCE(sat) 0.3 V IC = 150 mA, IB = 15 mA 2
Collector-Emitter Saturation Voltage VCE(sat) 1 V IC = 500 mA, IB = 50 mA 2
Base-Emitter Saturation Voltage VBE(sat) 0.6 1.2 V IC = 150 mA, IB = 15 mA 2
Base-Emitter Saturation Voltage VBE(sat) 2 V IC = 500 mA, IB = 50 mA 2
Current-Gain, Bandwidth Product fT 300 MHz IC = 20 mA, VCE = 20 V, f = 100 MHz 2
Output Capacitance Cobo 8 pF VCB = 5.0 V, IE = 0, f = 1.0 MHz 2
Input Capacitance Cibo 25 pF VEB = 0.5 V, IC = 0, f = 1.0 MHz 2
Delay Time td 10 ns VCC = 30 V, VEB = -0.5 V, IC = 150 mA, IB1 = 15 mA 3
Rise Time tr 25 ns VCC = 30 V, VEB = -0.5 V, IC = 150 mA, IB1 = 15 mA 3
Storage Time ts 225 ns VCC = 30 V, IC = 150 mA, IB1 = IB2 = 15 mA 3
Fall Time tf 60 ns VCC = 30 V, IC = 150 mA, IB1 = IB2 = 15 mA 3
Collector-Emitter Voltage VCEO 40 V Ta = 25ºC 1
Collector-Base Voltage VCBO 75 V Ta = 25ºC 1
Emitter-Base Voltage VEBO 6 V Ta = 25ºC 1
Collector Current, Continuous IC 600 mA Ta = 25ºC 1
Junction and Storage temperature TJ,Tstg -55 150 ºC 1
Total Device Dissipation PD 225 mW FR-5 Board (Note 1) @ TA = 25ºC 1
Derate above 25ºC 1.8 mW/ºC Derate above 25ºC 1
Thermal Resistance, Junction-to-Ambient RΘJA 556 ºC/W FR-5 Board (Note 1) 1
Thermal Resistance, Junction-to-Case RΘJC 300 ºC/W 1

CAD (KiCad official)

  • Symbol: S-LMBT2222ALT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: s-lmbt2222alt1g-etched.step / s-lmbt2222alt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); s-lmbt2222alt1g.step / s-lmbt2222alt1g.glb are the bare package body.

Provenance

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

  • Datasheet: LRC datasheet (6 pp, sha256 f8c7d601144bd49e, retrieved 2026-10-17, 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