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SMMBT2907ALT3G

Public Made by Adom

by adom

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

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SMMBT2907ALT3G

onsemi · Bipolar Transistors - BJT · SOT-23

SMMBT2907ALT3G 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 input Base of the PNP transistor; the SOT-23 STYLE 6 pinout assigns pin 1 to base, with VEBO limited to -5.0 Vdc.
2 EMITTER passive Emitter of the PNP transistor (SOT-23 STYLE 6 pin 2), with emitter-base voltage rated -5.0 Vdc maximum.
3 COLLECTOR passive Collector of the PNP transistor (SOT-23 STYLE 6 pin 3), rated VCEO -60 Vdc, VCBO -60 Vdc and IC -600 mAdc continuous.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-23
Category Triode/MOS Tube/Transistor
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 VCEO -60 Vdc 1
Collector-Base Voltage VCBO -60 Vdc 1
Emitter-Base Voltage VEBO -5 Vdc 1
Collector Current - Continuous IC -600 mAdc 1
Collector Current - Peak ICM -1200 mAdc Note 3 1
Total Device Dissipation FR-5 PD 225 mW FR-5 board, TA = 25°C 1
Thermal Resistance, Junction-to-Ambient (FR-5) RθJA 556 °C/W FR-5 board 1
Total Device Dissipation Alumina PD 300 mW Alumina substrate, TA = 25°C 1
Thermal Resistance, Junction-to-Ambient (Alumina) RθJA 417 °C/W Alumina substrate 1
Total Device Dissipation Heat Spreader PD 350 mW Heat spreader, TA = 25°C 1
Thermal Resistance, Junction-to-Ambient (Heat Spreader) RθJA 357 °C/W Heat spreader 1
Junction and Storage Temperature TJ, Tstg -55 150 °C 1
Collector-Emitter Breakdown Voltage V(BR)CEO -60 Vdc IC = -1.0 mAdc / -10 mAdc, IB = 0 2
Collector-Base Breakdown Voltage V(BR)CBO -60 Vdc IC = -10 µAdc, IE = 0 2
Emitter-Base Breakdown Voltage V(BR)EBO -5 Vdc IE = -10 µAdc, IC = 0 2
Collector Cutoff Current ICEX -50 nAdc VCE = -30 Vdc, VEB(off) = -0.5 Vdc 2
Collector Cutoff Current ICBO -0.01 µAdc VCB = -50 Vdc, IE = 0 2
Collector Cutoff Current ICBO -10 µAdc VCB = -50 Vdc, IE = 0, TA = 125°C 2
Base Cutoff Current IBL -50 nAdc VCE = -30 Vdc, VEB(off) = -0.5 Vdc 2
DC Current Gain hFE 75 IC = -0.1 mAdc, VCE = -10 Vdc 2
DC Current Gain hFE 100 IC = -1.0 mAdc, VCE = -10 Vdc 2
DC Current Gain hFE 100 300 IC = -150 mAdc, VCE = -10 Vdc 2
DC Current Gain hFE 50 IC = -500 mAdc, VCE = -10 Vdc 2
Collector-Emitter Saturation Voltage VCE(sat) -0.4 Vdc IC = -150 mAdc, IB = -15 mAdc 2
Collector-Emitter Saturation Voltage VCE(sat) -1.6 Vdc IC = -500 mAdc, IB = -50 mAdc 2
Base-Emitter Saturation Voltage VBE(sat) -1.3 Vdc IC = -150 mAdc, IB = -15 mAdc 2
Base-Emitter Saturation Voltage VBE(sat) -2.6 Vdc IC = -500 mAdc, IB = -50 mAdc 2
Current-Gain Bandwidth Product fT 200 MHz IC = -50 mAdc, VCE = -20 Vdc, f = 100 MHz 2
Output Capacitance Cobo 8 pF VCB = -10 Vdc, IE = 0, f = 1.0 MHz 2
Input Capacitance Cibo 30 pF VEB = -2.0 Vdc, IC = 0, f = 1.0 MHz 2
Turn-On Time ton 45 ns VCC = -30 Vdc, IC = -150 mAdc, IB1 = -15 mAdc 2
Delay Time td 10 ns VCC = -30 Vdc, IC = -150 mAdc, IB1 = -15 mAdc 2
Rise Time tr 40 ns VCC = -30 Vdc, IC = -150 mAdc, IB1 = -15 mAdc 2
Turn-Off Time toff 100 ns VCC = -6.0 Vdc, IC = -150 mAdc, IB1 = IB2 = -15 mAdc 2
Storage Time ts 80 ns VCC = -6.0 Vdc, IC = -150 mAdc, IB1 = IB2 = -15 mAdc 2
Fall Time tf 30 ns VCC = -6.0 Vdc, IC = -150 mAdc, IB1 = IB2 = -15 mAdc 2

CAD (KiCad official)

  • Symbol: SMMBT2907ALT3G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: smmbt2907alt3g-etched.step / smmbt2907alt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smmbt2907alt3g.step / smmbt2907alt3g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (7 pp, sha256 e11833e0d964b1ea, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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