# LP3401LT1G

**LRC** · MOSFETs · SOT-23

LP3401LT1G from LRC, 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-to-source voltage limited to ±12 V, with threshold VGS(th) of -0.7 V min, -1 V typ and -1.3 V max. |
| 2 | S | passive | Source; maximum body-diode continuous current IS is -2.2 A and drain current is -4.2 A continuous at TA = 25°C. |
| 3 | D | passive | Drain; drain-to-source voltage rated -30 V, continuous drain current -4.2 A at TA = 25°C and pulsed -30 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LRC |
| 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 | VGS | -12 |  | 12 | V |  | 1 |
| Continuous Drain Current | ID | -4.2 |  |  | A | TA = 25°C | 1 |
| Continuous Drain Current | ID | -3.5 |  |  | A | TA = 75°C | 1 |
| Pulsed Drain Current | IDM | -30 |  |  | A |  | 1 |
| Maximum Power Dissipation | PD |  |  | 1.4 | W | TA = 25°C | 1 |
| Maximum Power Dissipation | PD |  |  | 1 | W | TA = 75°C | 1 |
| Junction and Storage Temperature Range | TJ, Tstg | -55 |  | 150 | °C |  | 1 |
| Maximum Junction-to-Ambient | RθJA |  | 65 | 90 | °C/W |  | 1 |
| Maximum Junction-to-Ambient | RθJA |  | 85 | 125 | °C/W |  | 1 |
| Maximum Junction-to-Lead | RθJL |  | 43 | 60 | °C/W | Steady-State | 1 |
| Drain-to-Source Breakdown Voltage | BVDSS | -30 |  |  | V | ID=-250μA, VGS=0V | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -5 | V | VDS=-24V, VGS=0V | 2 |
| Gate-Body Leakage Current | IGSS | -100 |  | 100 | nA | VDS=0V, VGS=±12V | 2 |
| Gate Threshold Voltage | VGS(th) | -0.7 | -1 | -1.3 | V | VDS=VGS, ID=-250μA | 2 |
| On-State Drain Current | ID(ON) | -25 |  |  | A |  | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  |  | 70 | mΩ | VGS=-10V, ID=-4.2A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  |  | 80 | mΩ | VGS=-4.5V, ID=-4A | 2 |
| Static Drain-Source On-Resistance | RDS(ON) |  |  | 120 | mΩ | VGS=-2.5V, ID=-1A | 2 |
| Forward Transconductance | gFS | 7 | 11 |  | S | VDS=-5V, ID=-5A | 2 |
| Diode Forward Voltage | VSD |  | -0.75 | -1 | V | IS=-1A, VGS=0V | 2 |
| Maximum Body-Diode Continuous Current | IS | -2.2 |  |  | A |  | 2 |
| Turn-On Delay Time | td(on) |  | 6.3 |  | ns | VGS=-10V, VDS=-15V, RL=3.6Ω, RGEN=6Ω | 2 |
| Rise Time | tr |  | 3.2 |  | ns | VGS=-10V, VDS=-15V, RL=3.6Ω, RGEN=6Ω | 2 |
| Turn-Off Delay Time | td(off) |  | 38.2 |  | ns | VGS=-10V, VDS=-15V, RL=3.6Ω, RGEN=6Ω | 2 |
| Fall Time | tf |  | 12 |  | ns | VGS=-10V, VDS=-15V, RL=3.6Ω, RGEN=6Ω | 2 |
| Body Diode Reverse Recovery Time | trr |  | 20.2 |  | ns | IF=-4A, dI/dt=100A/μs | 2 |
| Body Diode Reverse Recovery Charge | Qrr |  | 11.2 |  | nc | IF=-4A, dI/dt=100A/μs | 2 |
| Input Capacitance | Ciss |  | 954 |  | pF | VGS=0V, VDS=-15V, f=1MHz | 2 |
| Output Capacitance | Coss |  | 115 |  | pF | VGS=0V, VDS=-15V, f=1MHz | 2 |
| Reverse Transfer Capacitance | Crss |  | 77 |  | pF | VGS=0V, VDS=-15V, f=1MHz | 2 |
| Gate Resistance | Rg |  | 6 |  |  | VGS=0V, VDS=0V, f=1MHz | 2 |
| Total Gate Charge | QG |  | 9.4 |  | nc |  | 2 |
| Gate-to-Source Gate Charge | QGS |  | 2 |  | nc |  | 2 |
| Gate-to-Drain Charge | QGD |  | 3 |  | nc |  | 2 |

## CAD (KiCad official)

- Symbol: `LP3401LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `lp3401lt1g-etched.step` / `lp3401lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3401lt1g.step` / `lp3401lt1g.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [LRC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176343801810944) (5 pp, sha256 `2d080af2f7b75fa2`, retrieved 2026-10-09, tier: lcsc)
- **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/lp3401lt1g-datasheet.pdf)