component
KO3407
Public Made by Adomby adom
KEXIN 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
markdownKO3407
KEXIN · MOSFETs · SOT-23
KO3407 from KEXIN, 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 of the P-channel enhancement MOSFET, with gate-source voltage rated at ±20 V. |
| 2 | Source | passive | Source of the P-channel enhancement MOSFET; the datasheet gives no separate source-specific limits. |
| 3 | Drain | passive | Drain of the P-channel enhancement MOSFET, rated for a drain-source voltage of -30 V and a continuous drain current of -4.1 A at Ta = 25°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEXIN |
| 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 Breakdown Voltage | VDSS | -30 | V | ID=-250μA, VGS=0V | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | -1 | μA | VDS=-24V, VGS=0V | 2 | ||
| Zero Gate Voltage Drain Current (TJ=55℃) | IDSS | -5 | μA | VDS=-24V, VGS=0V, TJ=55℃ | 2 | ||
| Gate-Body leakage current | IGSS | -100 | 100 | nA | VDS=0V, VGS=±20V | 2 | |
| Gate Threshold Voltage | VGS(th) | -1 | -1.8 | -3 | V | VDS=VGS, ID=-250μA | 2 |
| Static Drain-Source On-Resistance | RDS(On) | 40.5 | 52 | mΩ | VGS=-10V, ID=-4.1A | 2 | |
| Static Drain-Source On-Resistance (TJ=125℃) | RDS(On) | 57 | 73 | mΩ | VGS=-10V, ID=-4.A, TJ=125℃ | 2 | |
| Static Drain-Source On-Resistance | RDS(On) | 64 | 87 | mΩ | VGS=-4.5V, ID=-3A | 2 | |
| On state drain current | ID(ON) | -10 | A | VGS=-4.5V, VDS=-5V | 2 | ||
| Forward Transconductance | gFS | 5.5 | 8.2 | S | VDS=-5V, ID=-4A | 2 | |
| Maximum Body-Diode Continuous Current | IS | -2.2 | A | 2 | |||
| Diode Forward Voltage | VSD | -0.77 | -1 | V | IS=-1A, VGS=0V | 2 | |
| Drain-Source Voltage | VDS | -30 | V | 1 | |||
| Gate-Source Voltage | VGS | -20 | 20 | V | 1 | ||
| Continuous Drain Current | ID | -4.1 | A | Ta = 25℃ | 1 | ||
| Continuous Drain Current | ID | -3.5 | A | Ta = 70℃ | 1 | ||
| Pulsed Drain Current | IDM | -20 | A | 1 | |||
| Power Dissipation | PD | 1.4 | W | Ta = 25℃ | 1 | ||
| Power Dissipation | PD | 1 | W | Ta = 70℃ | 1 | ||
| Thermal Resistance Junction-to-Ambient | RthJA | 90 | ℃/W | t ≤ 10s | 1 | ||
| Thermal Resistance Junction-to-Ambient (steady state) | RthJA | 125 | ℃/W | Steady State | 1 | ||
| Thermal Resistance Junction-to-Lead | RthJL | 60 | ℃/W | 1 | |||
| Junction Temperature | TJ | 150 | ℃ | 1 | |||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
KO3407 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
ko3407-etched.step/ko3407-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ko3407.step/ko3407.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEXIN datasheet (4 pp, sha256
ca7e67cb4ef7b6a0, retrieved 2026-10-17, 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).