component
KY3404
Public Made by Adomby adom
KY MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 17d ago |
| viewers | 17d ago |
| ky3404-etched.glb | 17d ago |
| ky3404-etched.step | 17d ago |
| ky3404-hero.glb | 17d ago |
| ky3404-hero.overlay.json | 17d ago |
| ky3404.glb | 17d ago |
| ky3404.kicad_mod | 17d ago |
| ky3404.kicad_sym | 17d ago |
| ky3404.lbr | 17d ago |
| ky3404.step | 17d ago |
| package.json | 17d ago |
| page.json | 17d ago |
| README.md | 17d ago |
KY3404
KY · MOSFETs · SOT-23
KY3404 from KY, 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 | Gate terminal of the 30 V N-channel MOSFET, rated for a gate-source voltage of ±20 V (VGSS). |
| 2 | SOURCE | passive | Source terminal of the N-channel MOSFET; the datasheet gives the device continuous drain current of 5.8 A at Ta = 25°C, measured source-referenced. |
| 3 | DRAIN | passive | Drain terminal of the N-channel MOSFET, rated for a drain-source voltage of 30 V (VDSS) and continuous drain current of 5.8 A at Ta = 25°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KY |
| 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 | VDSS | 30 | V | 1 | |||
| Gate-Source Voltage | VGSS | -20 | 20 | V | 1 | ||
| Continuous Drain Current | ID | 5.8 | A | Ta = 25℃ | 1 | ||
| Continuous Drain Current | ID | 4 | A | Ta = 100℃ | 1 | ||
| Pulsed Drain Current | IDM | 30 | A | 1 | |||
| Power Dissipation | PD | 1.5 | W | Ta= 25℃ | 1 | ||
| Thermal Resistance, Junction to Ambient | RθJA | 85 | ℃/W | 1 | |||
| Operating and Storage Temperature Range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| 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, TJ = 25℃ | 2 | ||
| Gate to Body Leakage Current | IGSS | -100 | 100 | nA | VGS = ±20V,VDS = 0V | 2 | |
| Gate Threshold Voltage | VGS(th) | 1 | 1.5 | 2.5 | V | VDS =VGS,ID = 250μA | 2 |
| Static Drain-Source On-Resistance | RDS(on) | 18 | 25 | mΩ | VGS =10V, ID =5A | 2 | |
| Static Drain-Source On-Resistance | RDS(on) | 28 | 40 | mΩ | VGS =4.5V, ID =4A | 2 | |
| Forward Transconductance | gFS | 3 | 5.8 | S | VDS =5V, ID =5A | 2 | |
| Maximum Continuous Drain to Source Diode Forward Current | IS | 5.8 | A | 2 | |||
| Maximum Pulsed Drain to Source Diode Forward Current | ISM | 30 | A | 2 | |||
| Drain to Source Diode Forward Voltage | VSD | 1.2 | V | VGS = 0V, ISD=1.7A, TJ = 25℃ | 2 |
CAD (KiCad official)
- Symbol:
KY3404 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ky3404-etched.step/ky3404-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ky3404.step/ky3404.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KY datasheet (5 pp, sha256
64bbdc21a49dd622, 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).