# JMTK440P04A

**Jiangsu JieJie Microelectronics** · MOSFETs · TO-252

JMTK440P04A from Jiangsu JieJie Microelectronics, in a TO-252. 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; P-channel gate with VGSS limit of ±20 V and threshold VGS(th) of -1.0 to -2.5 V at ID=-250µA. |
| 2 | D | passive | Drain (also the mounting tab); VDSS -40 V, continuous drain current -10 A at TC=25℃ and pulsed -40 A. |
| 3 | S | passive | Source; connects to the body diode anode side with continuous diode forward current of -10 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu JieJie Microelectronics |
| Package | TO-252 |
| 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 | V(BR)DSS | -40 |  |  | V | VGS=0V, ID= -250μA | 2 |
| Zero Gate Voltage Drain Current | IDSS |  |  | -1 | μA | VDS= -40V, VGS=0V | 2 |
| Gate to Body Leakage Current | IGSS | -100 |  | 100 | nA | VDS=0V, VGS= ±20V | 2 |
| Gate Threshold Voltage | VGS(th) | -1 | -1.6 | -2.5 | V | VDS=VGS, ID= -250μA | 2 |
| Static Drain-Source on-Resistance (VGS= -10V) | RDS(on) |  | 34 | 44 | mΩ | VGS= -10V, ID= -8A | 2 |
| Static Drain-Source on-Resistance (VGS= -4.5V) | RDS(on) |  | 44 | 60 | mΩ | VGS= -4.5V, ID= -5A | 2 |
| Drain to Source Diode Forward Voltage | VSD |  | -0.8 | -1.2 | V | VGS=0V, IS= -10A | 2 |
| Maximum Continuous Drain to Source Diode Forward Current | IS |  |  | -10 | A |  | 2 |
| Maximum Pulsed Drain to Source Diode Forward Current | ISM |  |  | -40 | A |  | 2 |
| Drain-Source Voltage | VDSS |  |  | -40 | V | TC=25℃ unless otherwise specified | 1 |
| Gate-Source Voltage | VGSS | -20 |  | 20 | V | TC=25℃ unless otherwise specified | 1 |
| Continuous Drain Current | ID |  |  | -10 | A | TC = 25℃ | 1 |
| Continuous Drain Current | ID |  |  | -6.5 | A | TC = 100℃ | 1 |
| Pulsed Drain Current | IDM |  |  | -40 | A |  | 1 |
| Single Pulsed Avalanche Energy | EAS |  |  | 27.6 | mJ |  | 1 |
| Power Dissipation | PD |  |  | 8 | W | TC = 25℃ | 1 |
| Thermal Resistance, Junction to Case | RθJC |  |  | 18.8 | ℃/W |  | 1 |
| Operating and Storage Temperature Range | TJ, TSTG | -55 |  | 175 | ℃ |  | 1 |

## CAD (KiCad official)

- Symbol: `JMTK440P04A`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `jmtk440p04a-etched.step` / `jmtk440p04a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jmtk440p04a.step` / `jmtk440p04a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Jiangsu JieJie Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954598739988480) (7 pp, sha256 `b04dbd7d9f4ed221`, retrieved 2026-10-18, 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/jmtk440p04a-datasheet.pdf)