component
KYL3401
Public Made by Adomby adom
KY MOSFETs, SOT-23-3L. 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
markdownKYL3401
KY · MOSFETs · SOT-23-3L
KYL3401 from KY, in a SOT-23-3L. 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 | Gate terminal of the P-channel MOSFET; the datasheet gives a gate-source voltage rating of ±12 V. |
| 2 | SOURCE | passive | Source terminal of the P-channel MOSFET, the reference for the gate-source voltage. |
| 3 | DRAIN | passive | Drain terminal of the P-channel MOSFET; the datasheet gives a drain-source voltage of -30 V and a continuous drain current of -4.2 A at Ta=25°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KY |
| Package | SOT-23-3L |
| 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 Breakdown Voltage | V(BR)DSS | -30 | V | VGS=0V, ID=-250μA | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | -1 | μA | VDS=-30V, VGS=0V | 2 | ||
| Gate to Body Leakage Current | IGSS | -100 | 100 | nA | VDS=0V, VGS=±12V | 2 | |
| Gate Threshold Voltage | VGS(th) | -0.6 | -0.9 | -1.3 | V | VDS=VGS, ID=-250μA | 2 |
| Static Drain-Source on-Resistance | RDS(on) | 48 | 60 | mΩ | VGS= -10V, ID= -4A | 2 | |
| Static Drain-Source on-Resistance | RDS(on) | 57 | 78 | mΩ | VGS= -4.5V, ID= -3A | 2 | |
| Static Drain-Source on-Resistance | RDS(on) | 77 | 112 | mΩ | VGS= -2.5V, ID= -1A | 2 | |
| Maximum Continuous Drain to Source Diode Forward Current | IS | -4.2 | A | 2 | |||
| Maximum Pulsed Drain to Source Diode Forward Current | ISM | -30 | A | 2 | |||
| Drain to Source Diode Forward Voltage | VSD | -0.8 | -1.2 | V | VGS=0V, IS=-4.2A | 2 | |
| Drain-Source Voltage | VDSS | -30 | V | 1 | |||
| Gate-Source Voltage | VGSS | -12 | 12 | V | 1 | ||
| Continuous Drain Current | ID | -4.2 | A | Ta=25℃ | 1 | ||
| Continuous Drain Current | ID | -2.7 | A | Ta=100℃ | 1 | ||
| Pulsed Drain Current | IDM | -30 | A | Note 1 repetitive rating, pulse width limited by max junction temperature | 1 | ||
| Power Dissipation | PD | 1.7 | W | 1 | |||
| Operating and Storage Temperature Range | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 76.2 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
KYL3401 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
kyl3401-etched.step/kyl3401-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kyl3401.step/kyl3401.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KY datasheet (5 pp, sha256
334f9c99af69ec71, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).