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BSS127G-AE3-R

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UTC(Unisonic Tech) MOSFETs, 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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Datasheet

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Contents

README

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BSS127G-AE3-R

UTC(Unisonic Tech) · MOSFETs · SOT-23

BSS127G-AE3-R from UTC(Unisonic Tech), 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 G input Gate pin of the N-channel MOSFET; maximum gate-source voltage is ±20 V with threshold VGS(TH) of 1.4 V min, 2.0 V typ, 2.6 V max at ID=8 µA.
2 S passive Source pin of the N-channel MOSFET; continuous source-drain diode current is 0.016 A at TA=25°C.
3 D passive Drain pin of the N-channel MOSFET; drain-source voltage is 600 V max and continuous drain current is 0.021 A at TA=25°C.

Key specifications

Parameter Value
Manufacturer UTC(Unisonic Tech)
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
Drain-Source Breakdown Voltage BVDSS 600 V ID=250µA, VGS=0V 2
Gate-Source Leakage Current Forward IGSS 10 100 nA VGS=+20V, VDS=0V 2
Gate-Source Leakage Current Reverse IGSS -100 -10 nA VGS=-20V, VDS=0V 2
Drain-Source Leakage Current ID(OFF) 0.1 µA VGS=0V, VDS=600V, TJ=25°C 2
Drain-Source Leakage Current ID(OFF) 10 µA VGS=0V, VDS=600V, TJ=150°C 2
Gate Threshold Voltage VGS(TH) 1.4 2 2.6 V VDS=VGS, ID=8µA 2
Static Drain-Source On-State Resistance RDS(ON) 330 600 Ω VGS=4.5V, ID=0.016A 2
Static Drain-Source On-State Resistance RDS(ON) 310 500 Ω VGS=10V, ID=0.016A 2
Forward Transconductance gFS 0.007 0.015 S /VDS/>2/ID/RDS(ON)MAX, ID=0.01A 2
Input Capacitance CISS 21 28 pF VGS=0V, VDS=25V, f=1.0MHz 2
Output Capacitance COSS 2.4 3 pF VGS=0V, VDS=25V, f=1.0MHz 2
Reverse Transfer Capacitance CRSS 1 1.5 pF VGS=0V, VDS=25V, f=1.0MHz 2
Total Gate Charge QG 0.65 1 nC VGS=0~10V, VDS=300V, ID=0.01A 2
Gate to Source Charge QGS 0.07 0.1 nC VGS=0~10V, VDS=300V, ID=0.01A 2
Gate to Drain Charge QGD 0.31 0.5 nC VGS=0~10V, VDS=300V, ID=0.01A 2
Turn-ON Delay Time tD(ON) 6.1 19 ns VDD=300V, VGS=10V, ID=0.01A, RG=6Ω 2
Rise Time tR 9.7 14.5 ns VDD=300V, VGS=10V, ID=0.01A, RG=6Ω 2
Turn-OFF Delay Time tD(OFF) 14 21 ns VDD=300V, VGS=10V, ID=0.01A, RG=6Ω 2
Fall-Time tF 115 170 ns VDD=300V, VGS=10V, ID=0.01A, RG=6Ω 2
Drain-Source Diode Forward Voltage VSD 0.82 1.2 V IF=0.016A, VGS=0V, TJ=25°C 2
Body Diode Reverse Recovery Time trr 160 240 ns VR=300V, IF=0.016A, dIF/dt=100A/µs 2
Body Diode Reverse Recovery Charge Qrr 13.2 19.8 µC VR=300V, IF=0.016A, dIF/dt=100A/µs 2
Maximum Continuous Drain-Source Diode Forward Current IS 0.016 A TA=25°C 2
Maximum Pulsed Drain-Source Diode Forward Current ISM 0.09 A TA=25°C 2
Gate Plateau Voltage Vplateau 3.56 V VGS=0~10V, VDS=300V, ID=0.01A 2
Drain-Source Voltage VDSS 600 V TA=25°C 2
Gate-Source Voltage VGSS -20 20 V TA=25°C 2
Drain Current Continuous ID 0.021 A TA=25°C 2
Drain Current Continuous ID 0.017 A TA=70°C 2
Drain Current Pulsed IDM 0.09 A TA=25°C 2
Peak Diode Recovery dv/dt dv/dt 6 kV/µs TA=25°C 2
Power Dissipation PD 0.3 W TA=25°C 2
Junction Temperature TJ -55 150 °C 2
Storage Temperature Range TSTG -55 150 °C 2
Junction to Ambient Thermal Resistance θJA 325 °C/W 2

CAD (KiCad official)

  • Symbol: BSS127G-AE3-R
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bss127g-ae3-r-etched.step / bss127g-ae3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bss127g-ae3-r.step / bss127g-ae3-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC(Unisonic Tech) datasheet (5 pp, sha256 ce8c8f52d22b1a9e, retrieved 2026-10-22, 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