component
SE3401
Public Made by Adomby adom
Leiditech MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSE3401
Leiditech · MOSFETs · SOT-23
SE3401 from Leiditech, 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; gate-source voltage limited to ±12 V, with threshold VGS(th) of -0.6 V min, -0.9 V typ and -1.4 V max at ID=-250μA. |
| 2 | S | passive | Source; body-diode continuous current IS is -4.4 A and drain current ID is -4.4 A at TA=25℃. |
| 3 | D | passive | Drain; drain-source voltage rated -30 V, drain current -4.4 A continuous and -27 A pulsed. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-source Voltage | VDS | -30 | V | 1 | |||
| Gate-source Voltage | VGS | -12 | 12 | V | 1 | ||
| Drain Current | ID | -4.4 | A | TA=25℃ @ Steady State | 1 | ||
| Drain Current | ID | -3.5 | A | TA=70℃ @ Steady State | 1 | ||
| Pulsed Drain Current | IDM | -27 | A | 1 | |||
| Total Power Dissipation | PD | 1.2 | W | TA=25℃ | 1 | ||
| Junction and Storage Temperature Range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction-to-Ambient | RθJA | 105 | ℃/W | @ Steady State | 1 | ||
| Gate Threshold Voltage | VGS(th) | -0.6 | -0.9 | -1.4 | V | VDS= VGS, ID=-250μA | 2 |
| Static Drain-Source On-Resistance | RDS(ON) | 45.5 | 55 | mΩ | VGS= -10V, ID=-4.4A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 52 | 68 | mΩ | VGS= -4.5V, ID=-4A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 64 | 96 | mΩ | VGS= -2.5V, ID=-2A | 2 | |
| Gate-Body Leakage Current | IGSS | -100 | 100 | nA | VGS= ±12V, VDS=0V | 2 | |
| Diode Forward Voltage | VSD | -0.8 | -1.2 | V | IS=-4.4A,VGS=0V | 2 | |
| Maximum Body-Diode Continuous Current | IS | -4.4 | A | 2 |
CAD (KiCad official)
- Symbol:
SE3401 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
se3401-etched.step/se3401-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);se3401.step/se3401.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Leiditech datasheet (5 pp, sha256
9d1dc8305c373adb, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).