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TF3400B
Public Made by Adomby adom
TF 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
markdownTF3400B
TF · MOSFETs · SOT-23
TF3400B from TF, 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 | MOSFET gate terminal; the datasheet's absolute maximum gate-source voltage is ±12 V. |
| 2 | SOURCE | passive | MOSFET source terminal; the datasheet gives no pin-specific limit for this terminal beyond the device ratings. |
| 3 | DRAIN | passive | MOSFET drain terminal; the datasheet's drain-source voltage rating is 30 V and continuous drain current is 5.0 A at TA=25°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TF |
| 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 | VDS | 30 | V | 1 | |||
| Gate-Source Voltage | VGS | -12 | 12 | V | 1 | ||
| Continuous Drain Current | ID | 5 | A | TA=25°C | 1 | ||
| Pulsed Drain Current | IDM | 25 | A | 1 | |||
| Power Dissipation | PD | 1 | W | TA=25°C | 1 | ||
| Junction and Storage Temperature Range | TJ, TSTG | -55 | 150 | °C | 1 | ||
| Maximum Junction-to-Ambient | RθJA | 65 | 90 | °C/W | t ≤ 10s | 1 | |
| Maximum Junction-to-Ambient | RθJA | 85 | 125 | °C/W | Steady-State | 1 | |
| Maximum Junction-to-Lead | RθJL | 43 | 60 | °C/W | Steady-State | 1 | |
| Drain-Source Breakdown Voltage | BVDSS | 30 | V | ID=250µA, VGS=0V | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | 1 | µA | VDS=25V, VGS=0V | 2 | ||
| Gate-Body Leakage Current | IGSS | 100 | nA | VDS=0V, VGS=±12V | 2 | ||
| Gate Threshold Voltage | VGS(th) | 0.6 | V | VDS=VGS, ID=250µA | 2 | ||
| On-State Drain Current | ID(ON) | 30 | A | VGS=4.5V, VDS=5V | 2 | ||
| Static Drain-Source On-Resistance | RDS(ON) | 38 | 48 | mΩ | VGS=2.5V, ID=3.0A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 33 | 38 | mΩ | VGS=4.5V, ID=4.0A | 2 | |
| Static Drain-Source On-Resistance | RDS(ON) | 28 | 35 | mΩ | VGS=10V, ID=5.0A | 2 | |
| Forward Transconductance | gFS | 10 | 15 | S | VDS=5V, ID=5.0A | 2 | |
| Diode Forward Voltage | VSD | 0.71 | 1.2 | V | IS=1A, VGS=0V | 2 | |
| Maximum Body-Diode Continuous Current | IS | 2.5 | A | 2 | |||
| Input Capacitance | Ciss | 605 | pF | VGS=0V, VDS=15V, f=1MHz | 2 | ||
| Output Capacitance | Coss | 62 | pF | VGS=0V, VDS=15V, f=1MHz | 2 | ||
| Reverse Transfer Capacitance | Crss | 48 | pF | VGS=0V, VDS=15V, f=1MHz | 2 | ||
| Gate Resistance | Rg | 1.2 | 3.6 | Ω | VGS=0V, VDS=0V, f=1MHz | 2 | |
| Total Gate Charge | Qg | 9.7 | 12 | nC | VGS=4.5V, VDS=15V, ID=5.0A | 2 | |
| Gate Source Charge | Qgs | 1.6 | nC | VGS=4.5V, VDS=15V, ID=5.0A | 2 | ||
| Gate Drain Charge | Qgd | 3.1 | nC | VGS=4.5V, VDS=15V, ID=5.0A | 2 | ||
| Turn-On Delay Time | tD(on) | 3.3 | 5 | ns | VGS=10V, VDS=15V, RL=2.7Ω, RGEN=3Ω | 2 | |
| Turn-On Rise Time | tr | 4.8 | 7 | ns | VGS=10V, VDS=15V, RL=2.7Ω, RGEN=3Ω | 2 | |
| Turn-Off Delay Time | tD(off) | 26.3 | 40 | ns | VGS=10V, VDS=15V, RL=2.7Ω, RGEN=3Ω | 2 | |
| Turn-Off Fall Time | tf | 4.1 | 6 | ns | VGS=10V, VDS=15V, RL=2.7Ω, RGEN=3Ω | 2 | |
| Body Diode Reverse Recovery Time | trr | 16 | 20 | ns | IF=5A, dI/dt=100A/µs | 2 | |
| Body Diode Reverse Recovery Charge | Qrr | 8.9 | 12 | nC | IF=5A, dI/dt=100A/µs | 2 |
CAD (KiCad official)
- Symbol:
TF3400B - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
tf3400b-etched.step/tf3400b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tf3400b.step/tf3400b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TF datasheet (5 pp, sha256
250c4eb7b0d7ceee, 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).