# PJM3401PSA

**PJSEMI** · MOSFETs · SOT-23

PJM3401PSA from PJSEMI, 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 terminal of the P-channel enhancement MOSFET, rated for a gate-source voltage of ±12 V (VGS). |
| 2 | Source | passive | Source terminal of the P-channel enhancement MOSFET, rated for a drain-source voltage of -30 V (VDS) and continuous drain current of -4.1 A. |
| 3 | Drain | passive | Drain terminal of the P-channel enhancement MOSFET, rated for a drain-source voltage of -30 V (VDS) and continuous drain current of -4.1 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PJSEMI |
| 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 | -VDS |  |  | 30 | V |  | 1 |
| Gate-Source Voltage | VGS | -12 |  | 12 | V |  | 1 |
| Continuous Drain Current | -ID |  |  | 4.1 | A |  | 1 |
| Power Dissipation | PD |  |  | 1.2 | W |  | 1 |
| Junction Temperature Range | TJ |  |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | °C |  | 1 |
| Drain-source breakdown voltage | -V(BR)DSS | 30 |  |  | V | VGS = 0V, ID=-250µA | 2 |
| Drain to Source Leakage Current | -IDSS |  |  | 1 | µA | VDS =-24V, VGS = 0V | 2 |
| Gate-body leakage current | IGSS | -100 |  | 100 | nA | VGS =±12V, VDS = 0V | 2 |
| Gate threshold voltage | -VGS(th) | 0.7 |  | 1.3 | V | VDS =VGS, ID =-250µA | 2 |
| Drain-source on-resistance (VGS=-10V) | RDS(on) |  |  | 65 | mΩ | VGS =-10V, ID =-4.1A | 2 |
| Drain-source on-resistance (VGS=-4.5V) | RDS(on) |  |  | 85 | mΩ | VGS =-4.5V, ID =-2A | 2 |
| Diode Forward voltage | -VDS |  |  | 1 | V | VGS =0V, IS=-1A | 2 |
| Input Capacitance | Ciss |  | 954 |  | pF | VDS = -15V, VGS = 0V, f=1MHz | 2 |
| Output Capacitance | Coss |  | 115 |  | pF | VDS = -15V, VGS = 0V, f=1MHz | 2 |
| Reverse Transfer Capacitance | Crss |  | 77 |  | pF | VDS = -15V, VGS = 0V, f=1MHz | 2 |
| Turn-on delay time | td(on) |  | 6.3 |  | ns | VDD=-15V, VGS=-10V, RGEN =6Ω, RL =3.6Ω | 2 |
| Turn-on rise time | tr |  | 3.2 |  | ns | VDD=-15V, VGS=-10V, RGEN =6Ω, RL =3.6Ω | 2 |
| Turn-off delay time | td(off) |  | 38.2 |  | ns | VDD=-15V, VGS=-10V, RGEN =6Ω, RL =3.6Ω | 2 |
| Turn-off fall time | tf |  | 12 |  | ns | VDD=-15V, VGS=-10V, RGEN =6Ω, RL =3.6Ω | 2 |
| Maximum Junction-to-Ambient thermal resistance | RθJA |  | 104 |  | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `PJM3401PSA`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `pjm3401psa-etched.step` / `pjm3401psa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pjm3401psa.step` / `pjm3401psa.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PJSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884475883499520) (6 pp, sha256 `c0def5862b8598fc`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/pjm3401psa-datasheet.pdf)