# PJA3441

**PANJIT International** · MOSFETs · SOT-23

PJA3441 from PANJIT International, 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 limit is ±20 V, with threshold VGS(th) of -1.0 V min to -2.5 V max at ID=-250uA. |
| 2 | S | passive | Source of the P-channel MOSFET; body diode continuous forward current IS is -1.0 A max. |
| 3 | D | passive | Drain; drain-source voltage is -40 V max and continuous drain current is -3.1 A (pulsed -12.4 A). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 Breakdown Voltage | BVDSS | -40 |  |  | V | VGS=0V, ID=-250uA | 2 |
| Gate Threshold Voltage | VGS(th) | -1 | -1.5 | -2.5 | V | VDS=VGS, ID=-250uA | 2 |
| Drain-Source On-State Resistance | RDS(on) |  | 74 | 88 | mΩ | VGS=-10V, ID=-3.1A | 2 |
| Drain-Source On-State Resistance | RDS(on) |  | 88 | 108 | mΩ | VGS=-4.5V, ID=-2.6A | 2 |
| Zero Gate Voltage Drain Current | IDSS |  | -0.01 | -1 | uA | VDS=-40V, VGS=0V | 2 |
| Gate-Source Leakage Current | IGSS |  | 10 | 100 | nA | VGS=+20V, VDS=0V | 2 |
| Maximum Continuous Drain-Source Diode Forward Current | IS |  |  | -1 | A |  | 2 |
| Diode Forward Voltage | VSD |  | -0.82 | -1.2 | V | IS=-1.0A, VGS=0V | 2 |
| Drain-Source Voltage | VDS |  |  | -40 | V |  | 1 |
| Gate-Source Voltage | VGS |  |  | 20 | V |  | 1 |
| Continuous Drain Current | ID |  |  | -3.1 | A |  | 1 |
| Pulsed Drain Current (Note 4) | IDM |  |  | -12.4 | A |  | 1 |
| Power Dissipation | PD |  |  | 1.25 | W | Ta=25oC | 1 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | oC |  | 1 |
| Thermal resistance, Junction to Ambient (Note 3) | RθJA |  | 100 |  | oC/W | Junction to Ambient (Note 3) | 1 |

## CAD (KiCad official)

- Symbol: `PJA3441`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `pja3441-etched.step` / `pja3441-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pja3441.step` / `pja3441.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PANJIT International datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226146354245632) (6 pp, sha256 `8418a73bfe7c29fe`, 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/pja3441-datasheet.pdf)