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FS3400MLT1 A09T
Public Made by Adomby adom
FOSAN MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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FS3400MLT1 A09T
FOSAN · MOSFETs · SOT-23
FS3400MLT1 A09T from FOSAN, 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 is limited to ±12 V, with a threshold of 0.65 V min, 0.9 V typ and 1.5 V max at ID=250uA. |
| 2 | S | passive | Source; the body diode forward drop is 1.2 V max at ISD=5.6A, and continuous drain current is 5.8 A at TA=25°C. |
| 3 | D | passive | Drain; drain-source voltage is rated at 30 V, with continuous current of 5.8 A and pulsed current of 23 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FOSAN |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| 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 | BVDSS | 30 | V | 1 | |||
| Gate-Source Voltage | VGS | 12 | V | 1 | |||
| Drain Current (continuous) | ID | 5.8 | A | at TA = 25°C | 1 | ||
| Drain Current (pulsed) | IDM | 23 | A | 1 | |||
| Total Device Dissipation | PD | 1300 | mW | at TA = 25°C | 1 | ||
| Junction/Storage Temperature | TJ,Tstg | -55 | 150 | ℃ | 1 | ||
| Drain-Source Breakdown Voltage | BVDSS | 30 | V | ID =250uA,VGS=0V | 2 | ||
| Gate Threshold Voltage | VGS(th) | 0.65 | 0.9 | 1.5 | V | ID =250uA,VGS= VDS | 2 |
| Zero Gate Voltage Drain Current | IDSS | 1 | uA | VGS=0V, VDS= 30V | 2 | ||
| Gate Body Leakage | IGSS | 100 | nA | VGS=+12V, VDS=0V | 2 | ||
| Static Drain-Source On-State Resistance | RDS(ON) | 21 | 27 | mΩ | ID=5.8A,VGS=10V | 2 | |
| Static Drain-Source On-State Resistance | RDS(ON) | 25 | 33 | mΩ | ID=5A,VGS=4.5V | 2 | |
| Static Drain-Source On-State Resistance | RDS(ON) | 33 | 51 | mΩ | ID=3A,VGS=2.5V | 2 | |
| Diode Forward Voltage Drop | VSD | 1.2 | V | ISD=5.6A,VGS=0V | 2 | ||
| Thermal Resistance Junction-Ambient | RΘJA | 96 | ℃/W | 1 | |||
| Input Capacitance | CISS | 630 | pF | VGS=0V, VDS=15V,f=1MHz | 2 | ||
| Common Source Output Capacitance | COSS | 55 | pF | VGS=0V, VDS=15V,f=1MHz | 2 | ||
| Reverse Transfer Capacitance | CRSS | 71 | pF | VGS=0V, VDS=15V,f=1MHz | 2 | ||
| Total Gate Charge | Qg | 17 | nC | VDS=15V, ID=5.6A, VGS=10V | 2 | ||
| Gate Source Charge | Qgs | 2 | nC | VDS=15V, ID=5.6A, VGS=10V | 2 | ||
| Gate Drain Charge | Qgd | 2 | nC | VDS=15V, ID=5.6A, VGS=10V | 2 | ||
| Turn-ON Delay Time | td(on) | 5 | ns | VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V | 2 | ||
| Turn-ON Rise Time | tr | 28 | ns | VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V | 2 | ||
| Turn-OFF Delay Time | td(off) | 16 | ns | VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V | 2 | ||
| Turn-OFF Fall Time | tf | 26 | ns | VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V | 2 |
CAD (KiCad official)
- Symbol:
FS3400MLT1 A09T - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
fs3400mlt1-a09t-etched.step/fs3400mlt1-a09t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fs3400mlt1-a09t.step/fs3400mlt1-a09t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: FOSAN datasheet (5 pp, sha256
9f3876d2cec2295d, retrieved 2026-10-21, 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).
# FS3400MLT1 A09T
**FOSAN** · MOSFETs · SOT-23
FS3400MLT1 A09T from FOSAN, 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 is limited to ±12 V, with a threshold of 0.65 V min, 0.9 V typ and 1.5 V max at ID=250uA. |
| 2 | S | passive | Source; the body diode forward drop is 1.2 V max at ISD=5.6A, and continuous drain current is 5.8 A at TA=25°C. |
| 3 | D | passive | Drain; drain-source voltage is rated at 30 V, with continuous current of 5.8 A and pulsed current of 23 A. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | FOSAN |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| 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 | BVDSS | | | 30 | V | | 1 |
| Gate-Source Voltage | VGS | | | 12 | V | | 1 |
| Drain Current (continuous) | ID | | | 5.8 | A | at TA = 25°C | 1 |
| Drain Current (pulsed) | IDM | | | 23 | A | | 1 |
| Total Device Dissipation | PD | | | 1300 | mW | at TA = 25°C | 1 |
| Junction/Storage Temperature | TJ,Tstg | -55 | | 150 | ℃ | | 1 |
| Drain-Source Breakdown Voltage | BVDSS | 30 | | | V | ID =250uA,VGS=0V | 2 |
| Gate Threshold Voltage | VGS(th) | 0.65 | 0.9 | 1.5 | V | ID =250uA,VGS= VDS | 2 |
| Zero Gate Voltage Drain Current | IDSS | | | 1 | uA | VGS=0V, VDS= 30V | 2 |
| Gate Body Leakage | IGSS | | | 100 | nA | VGS=+12V, VDS=0V | 2 |
| Static Drain-Source On-State Resistance | RDS(ON) | | 21 | 27 | mΩ | ID=5.8A,VGS=10V | 2 |
| Static Drain-Source On-State Resistance | RDS(ON) | | 25 | 33 | mΩ | ID=5A,VGS=4.5V | 2 |
| Static Drain-Source On-State Resistance | RDS(ON) | | 33 | 51 | mΩ | ID=3A,VGS=2.5V | 2 |
| Diode Forward Voltage Drop | VSD | | | 1.2 | V | ISD=5.6A,VGS=0V | 2 |
| Thermal Resistance Junction-Ambient | RΘJA | | | 96 | ℃/W | | 1 |
| Input Capacitance | CISS | | 630 | | pF | VGS=0V, VDS=15V,f=1MHz | 2 |
| Common Source Output Capacitance | COSS | | 55 | | pF | VGS=0V, VDS=15V,f=1MHz | 2 |
| Reverse Transfer Capacitance | CRSS | | 71 | | pF | VGS=0V, VDS=15V,f=1MHz | 2 |
| Total Gate Charge | Qg | | 17 | | nC | VDS=15V, ID=5.6A, VGS=10V | 2 |
| Gate Source Charge | Qgs | | 2 | | nC | VDS=15V, ID=5.6A, VGS=10V | 2 |
| Gate Drain Charge | Qgd | | 2 | | nC | VDS=15V, ID=5.6A, VGS=10V | 2 |
| Turn-ON Delay Time | td(on) | | 5 | | ns | VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V | 2 |
| Turn-ON Rise Time | tr | | 28 | | ns | VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V | 2 |
| Turn-OFF Delay Time | td(off) | | 16 | | ns | VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V | 2 |
| Turn-OFF Fall Time | tf | | 26 | | ns | VDS=15V ID=5.6A, RGEN=3Ω,VGS=10V | 2 |
## CAD (KiCad official)
- Symbol: `FS3400MLT1 A09T`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `fs3400mlt1-a09t-etched.step` / `fs3400mlt1-a09t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fs3400mlt1-a09t.step` / `fs3400mlt1-a09t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [FOSAN datasheet](docs/fs3400mlt1-a09t-datasheet.pdf) (5 pp, sha256 `9f3876d2cec2295d`, retrieved 2026-10-21, 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`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/fs3400mlt1-a09t-datasheet.pdf)