component

NUD3124LT1G

Public Made by Adom

by adom

onsemi Brushed DC Motor Drivers, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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NUD3124LT1G

onsemi · Brushed DC Motor Drivers · SOT-23

NUD3124LT1G 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 GATE input Logic-level gate input that drives the internal MOSFET through an internal 10 kΩ and 100 kΩ network, allowing direct drive from logic gates, inverters, and microcontrollers.
2 SOURCE passive MOSFET source terminal; the device is rated for a continuous drain-to-source voltage of 28 V (TJ = 125°C) and a continuous drain current of 150 mA (TJ = 125°C).
3 DRAIN passive MOSFET drain terminal that connects to the inductive load (relay coil), with an internal Zener eliminating the need for a free-wheeling diode; the internal clamp is rated up to 80 V for load dump.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-23
Category Motor Driver ICs
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-to-Source Voltage, Continuous VDSS 28 V TJ = 125°C 2
Gate-to-Source Voltage, Continuous VGSS 12 V TJ = 125°C 2
Drain Current, Continuous ID 150 mA TJ = 125°C 2
Single Pulse Drain-to-Source Avalanche Energy EZ 250 mJ For relay coils/inductive loads of 80 or higher; TJ Initial = 85°C 2
Peak Power Dissipation, Drain-to-Source PPK 20 W TJ Initial = 85°C; Notes 1 and 2 2
Load Dump Suppressed Pulse, Drain-to-Source ELD1 80 V Suppressed waveform VS = 45 V, RSOURCE = 0.5, T = 200 ms; relay coils/inductive loads of 80 or higher; TJ Initial = 85°C 2
Inductive Switching Transient 1, Drain-to-Source ELD2 100 V Waveform RSOURCE = 10, T = 2.0 ms; relay coils/inductive loads of 80 or higher; TJ Initial = 85°C 2
Inductive Switching Transient 2, Drain-to-Source ELD3 300 V Waveform RSOURCE = 4.0, T = 50 s; relay coils/inductive loads of 80 or higher; TJ Initial = 85°C 2
Reverse Battery, 10 Minutes (Drain-to-Source) Rev−Bat -14 V For relay coils/inductive loads of 80 or more 2
Dual Voltage Jump Start, 10 Minutes (Drain-to-Source) Dual−Volt 28 V 2
ESD Human Body Model (HBM) ESD 2000 V According to EIA/JESD22/A114 specification 2
Operating Ambient Temperature TA -40 125 °C 3
Maximum Junction Temperature TJ 150 °C 3
Storage Temperature Range TSTG -65 150 °C 3
Total Power Dissipation, SOT-23 PD 225 mW Note 5, minimum pad board; derate 1.8 mW/°C above 25°C 3
Thermal Resistance Junction-to-Ambient, SOT-23 RJA 556 °C/W Note 5, minimum pad board 3
Drain to Source Sustaining Voltage VBRDSS 28 34 38 V ID = 10 mA 4
Drain to Source Leakage Current IDSS 0.5 A VDS = 12 V, VGS = 0 V 4
Drain to Source Leakage Current IDSS 1 A VDS = 12 V, VGS = 0 V, TJ = 125°C 4
Drain to Source Leakage Current IDSS 50 A VDS = 28 V, VGS = 0 V 4
Drain to Source Leakage Current IDSS 80 A VDS = 28 V, VGS = 0 V, TJ = 125°C 4
Gate Body Leakage Current IGSS 60 A VGS = 3.0 V, VDS = 0 V 4
Gate Body Leakage Current IGSS 80 A VGS = 3.0 V, VDS = 0 V, TJ = 125°C 4
Gate Body Leakage Current IGSS 90 A VGS = 5.0 V, VDS = 0 V 4
Gate Body Leakage Current IGSS 110 A VGS = 5.0 V, VDS = 0 V, TJ = 125°C 4
Gate Threshold Voltage VGS(th) 1.3 1.8 2 V VGS = VDS, ID = 1.0 mA 4
Gate Threshold Voltage VGS(th) 1.3 2 V VGS = VDS, ID = 1.0 mA, TJ = 125°C 4
Drain to Source On-Resistance RDS(on) 1.4 Ω ID = 150 mA, VGS = 3.0 V 4
Drain to Source On-Resistance RDS(on) 1.7 Ω ID = 150 mA, VGS = 3.0 V, TJ = 125°C 4
Drain to Source On-Resistance RDS(on) 0.8 Ω ID = 150 mA, VGS = 5.0 V 4
Drain to Source On-Resistance RDS(on) 1.1 Ω ID = 150 mA, VGS = 5.0 V, TJ = 125°C 4
Output Continuous Current IDS(on) 150 200 mA VDS = 0.25 V, VGS = 3.0 V 4
Output Continuous Current IDS(on) 140 mA VDS = 0.25 V, VGS = 3.0 V, TJ = 125°C 4

CAD (KiCad official)

  • Symbol: NUD3124LT1G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: nud3124lt1g-etched.step / nud3124lt1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); nud3124lt1g.step / nud3124lt1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (10 pp, sha256 788b79ff317e8fc5, retrieved 2026-10-18, 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