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Contents

README

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BSS64LT1G

onsemi · Bipolar (BJT) · SOT-23

BSS64LT1G from onsemi, 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 driver transistor; the device maximum emitter-base voltage is VEBO 5.0 Vdc and continuous collector current is IC 100 mAdc.
2 EMITTER passive Emitter terminal of the NPN driver transistor; the maximum emitter-base voltage rating is VEBO 5.0 Vdc.
3 COLLECTOR passive Collector terminal of the NPN driver transistor; the maximum ratings are VCEO 80 Vdc and VCBO 120 Vdc, with continuous collector current IC 100 mAdc.

Key specifications

Parameter Value
Manufacturer onsemi
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 V(BR)CEO 80 Vdc IC = 4.0 mAdc 2
Collector-Base Breakdown Voltage V(BR)CBO 120 Vdc IC = 100 Adc 2
Emitter-Base Breakdown Voltage V(BR)EBO 5 Vdc IE = 100 Adc 2
Collector Cutoff Current ICBO 0.1 Adc VCE = 90 Vdc 2
Collector Cutoff Current ICBO 500 Adc TA = 150°C 2
Emitter Cutoff Current IEBO 200 nAdc VEB = 4.0 Vdc 2
DC Current Gain HFE 20 VCE = 1.0 Vdc, IC = 10 mAdc 2
Collector-Emitter Saturation Voltage VCE(sat) 0.15 Vdc IC = 4.0 mAdc, IB = 400 Adc 2
Collector-Emitter Saturation Voltage VCE(sat) 0.2 Vdc IC = 50 mAdc, IB = 15 mAdc 2
Current-Gain - Bandwidth Product fT 60 MHz IC = 4.0 mAdc, VCE = 10 Vdc, f = 20 MHz 2
Output Capacitance Cob 20 pF VCB = 10 Vdc, f = 1.0 MHz 2
Collector-Emitter Voltage VCEO 80 Vdc 1
Collector-Base Voltage VCBO 120 Vdc 1
Emitter-Base Voltage VEBO 5 Vdc 1
Collector Current - Continuous IC 100 mAdc 1
Junction and Storage Temperature TJ, Tstg -55 150 °C 1
Total Device Dissipation (FR-5 Board) PD 225 mW FR-5 board (Note 1), TA = 25°C 1
Derate above 25°C (FR-5 Board) PD 1.8 mW/°C FR-5 board (Note 1), derate above 25°C 1
Thermal Resistance, Junction-to-Ambient (FR-5 Board) RθJA 556 °C/W FR-5 board (Note 1) 1
Total Device Dissipation (Alumina Substrate) PD 300 mW Alumina substrate (Note 2), TA = 25°C 1
Derate above 25°C (Alumina Substrate) PD 2.4 mW/°C Alumina substrate (Note 2), derate above 25°C 1
Thermal Resistance, Junction-to-Ambient (Alumina Substrate) RθJA 417 °C/W Alumina substrate (Note 2) 1

CAD (KiCad official)

  • Symbol: BSS64LT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bss64lt1g-etched.step / bss64lt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bss64lt1g.step / bss64lt1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (5 pp, sha256 8277770e6e29ffee, retrieved 2026-10-18, tier: manufacturer)
  • 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