# TPM05K20CX

**Shenzhen JingYang** · MOSFETs · SOT-723

TPM05K20CX from Shenzhen JingYang, in a SOT-723. 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 MOSFET; typical gate-source voltage is ±8 V, and the datasheet specifies VGS(th) of -0.4 V min, -0.7 V typ, -2 V max at VDS = VGS, ID = -250 µA. |
| 2 | SOURCE | passive | Source terminal of the MOSFET; the diode forward voltage VSD is -1.1 V typical at IS = -0.5 A, VGS = 0 V. |
| 3 | DRAIN | passive | Drain terminal of the MOSFET; the drain-source voltage rating is VDS = -20 V and the continuous drain current is ID = -0.66 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen JingYang |
| Package | SOT-723 |
| 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 | -20 |  |  | V | VGS = 0V, ID =-250μA | 2 |
| Zero gate voltage drain current | IDSS |  |  | -1 | μA | VDS =-16V, VGS = 0V | 2 |
| Gate-body leakage current | IGSS | -10 |  | 10 | μA | VGS =±8V, VDS = 0V | 2 |
| Gate threshold voltage | VGS(th) | -0.4 | -0.7 | -2 | V | VDS =VGS, ID =-250μA | 2 |
| Drain-source on-resistance | RDS(on) |  | 465 | 560 | mΩ | VGS =-4.5V, ID =-0.5A | 2 |
| Drain-source on-resistance | RDS(on) |  | 600 | 780 | mΩ | VGS =-2.5V, ID =-0.5A | 2 |
| Input capacitance | Ciss |  | 113 | 170 | pF | VDS =-16V,VGS =0V,f =1MHz | 2 |
| Output capacitance | Coss |  | 15 | 25 | pF | VDS =-16V,VGS =0V,f =1MHz | 2 |
| Reverse transfer capacitance | Crss |  | 9 | 15 | pF | VDS =-16V,VGS =0V,f =1MHz | 2 |
| Diode forward voltage | VSD |  |  | -1.1 | V | IS=-0.5A, VGS = 0V | 2 |
| Drain-Source Voltage | VDS |  |  | -20 | V |  | 1 |
| Gate-Source Voltage (typical) | VGS | -8 |  | 8 | V |  | 1 |
| Continuous Drain Current | ID |  |  | -0.66 | A | note 1 | 1 |
| Pulsed Drain Current | IDM |  |  | -1.2 | A | tp=10 s | 1 |
| Power Dissipation | PD |  |  | 150 | mW | note 1 | 1 |
| Thermal Resistance from Junction to Ambient | RθJA |  |  | 833 | /W | note 1 | 1 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 1 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 1 |
| Lead Temperature for Soldering Purposes | TL |  |  | 260 | °C | 1/8 in from case for 10 s | 1 |

## CAD (KiCad official)

- Symbol: `TPM05K20CX`
- Footprint: `Package_TO_SOT_SMD:SOT-723`
- 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `tpm05k20cx-etched.step` / `tpm05k20cx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpm05k20cx.step` / `tpm05k20cx.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen JingYang datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603122845719273472) (4 pp, sha256 `f92bf97e387bf651`, 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/tpm05k20cx-datasheet.pdf)