# PM3401B

**Shandong Jingdao Microelectronics** · MOSFETs · SOT-23

PM3401B from Shandong Jingdao Microelectronics, 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; the datasheet rates the gate-source voltage at ±12 V (VGS). |
| 2 | Drain | passive | Drain terminal; the device is rated at a drain-source voltage of -30 V (VDS) and a continuous drain current of -4.2 A (ID). |
| 3 | Source | passive | Source terminal; the datasheet gives no source-specific limit, only the device-level ratings (VDS -30 V, operating and storage temperature -55 to +150 °C). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| 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 | -4.2 |  |  | A |  | 1 |
| Pulsed Drain Current | IDM | -30 |  |  | A | Note 1: pulse width limited by maximum junction temperature | 1 |
| Power Dissipation | PD |  |  | 1.2 | W |  | 1 |
| Operation Junction Temperature and Storage Temperature | Tj,Tstg | -55 |  | 150 | °C |  | 1 |
| Drain-Source Breakdown Voltage | BVDSS | -30 |  |  | V | VGS = 0V, ID = -250uA | 1 |
| Gate-Source Leakage Current (forward) | IGSS |  |  | 100 | nA | VGS = 12V, VDS = 0V (forward) | 1 |
| Gate-Source Leakage Current (reverse) | IGSS | -100 |  |  | nA | VGS = -12V, VDS = 0V (reverse) | 1 |
| Drain-Source Leakage Current | IDSS | -1 |  |  | uA | VDS = -24V, VGS = 0V | 1 |
| Gate Threshold Voltage | VGS(th) | -0.6 |  | -1.3 | V | VDS = VGS, ID = -250uA | 2 |
| Static Drain-Source On-State Resistance (VGS=-10V) | RDS(on) |  |  | 59 | mΩ | VGS = -10V, ID = -4.2A | 2 |
| Static Drain-Source On-State Resistance (VGS=-4.5V) | RDS(on) |  |  | 74 | mΩ | VGS = -4.5V, ID = -4A | 2 |
| Static Drain-Source On-State Resistance (VGS=-2.5V) | RDS(on) |  |  | 100 | mΩ | VGS = -2.5V, ID = -2A | 2 |
| Drain-Source Diode Forward Voltage | VSD | -1.4 |  |  | V | IS = -1.A, VGS = 0V | 2 |

## CAD (KiCad official)

- Symbol: `PM3401B`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `pm3401b-etched.step` / `pm3401b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pm3401b.step` / `pm3401b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shandong Jingdao Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602992117174185984) (7 pp, sha256 `0dfc73251a9c3aa0`, retrieved 2026-10-18, 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/pm3401b-datasheet.pdf)