component
FSS2305
Public Made by Adomby adom
FOSAN 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
markdownFSS2305
FOSAN · MOSFETs · SOT-23-3L
FSS2305 from FOSAN, 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 | G | input | Gate; gate-source voltage limited to ±10 V, with threshold VGS(th) of -0.4 V min to -1 V max at ID = -250 uA. |
| 2 | S | passive | Source of the P-channel MOSFET; the body diode runs between drain and source, with forward drop up to -1.2 V at ISD = -3.4 A. |
| 3 | D | passive | Drain; drain-source voltage rated -20 V, continuous drain current -3.5 A and pulsed -13 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FOSAN |
| 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 | BVDSS | -20 | V | ID = -250uA, VGS=0V | 2 | ||
| Gate Threshold Voltage | VGS(th) | -0.4 | -0.62 | -1 | V | ID = -250uA, VGS= VDS | 2 |
| Zero Gate Voltage Drain Current | IDSS | 1 | uA | VGS=0V, VDS= -20V | 2 | ||
| Gate Body Leakage | IGSS | 100 | nA | VGS=+10V, VDS=0V | 2 | ||
| Static Drain-Source On-State Resistance | RDS(ON) | 49 | 64 | mΩ | ID= -3.4A, VGS= -4.5V | 2 | |
| Static Drain-Source On-State Resistance | RDS(ON) | 59 | 80 | mΩ | ID= -3A, VGS= -2.5V | 2 | |
| Static Drain-Source On-State Resistance | RDS(ON) | 79 | 110 | mΩ | ID= -2.5A, VGS= -1.8V | 2 | |
| Diode Forward Voltage Drop | VSD | -1.2 | V | ISD= -3.4A, VGS=0V | 2 | ||
| Drain-Source Voltage | BVDSS | -20 | V | 1 | |||
| Gate-Source Voltage | VGS | 10 | V | 1 | |||
| Drain Current (continuous) | ID | -3.5 | A | at TA = 25°C | 1 | ||
| Drain Current (pulsed) | IDM | -13 | A | 1 | |||
| Total Device Dissipation | PD | 1000 | mW | at TA = 25°C | 1 | ||
| Junction/Storage Temperature | TJ,Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction-Ambient | RΘJA | 125 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
FSS2305 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files:
fss2305-etched.step/fss2305-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fss2305.step/fss2305.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: FOSAN datasheet (5 pp, sha256
172b646bb39a9cb8, retrieved 2026-10-09, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).