# IRLML2502TR

**UMW** · MOSFETs · SOT-23

IRLML2502TR from UMW, 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 terminal of the 20V N-channel MOSFET, with a gate-source voltage rating of VGS ±12 V. |
| 2 | S | passive | SOURCE terminal of the N-channel MOSFET; the datasheet gives no source-specific electrical limit. |
| 3 | D | passive | DRAIN terminal of the N-channel MOSFET, rated for a drain-source voltage VDS of 20 V and continuous drain current ID of 4.2 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| 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 | V(BR)DSS | 20 |  |  | V | VGS=0V, ID=10µA | 2 |
| Gate-threshold voltage | VGS(th) | 0.65 |  | 1.2 | V | VDS=VGS, ID=50µA | 2 |
| Gate-body leakage | IGSS | -100 |  | 100 | nA | VDS=0V, VGS=±8V | 2 |
| Zero gate voltage drain current | IDSS |  |  | 1 | µA | VDS=20V, VGS=0V | 2 |
| Forward transconductance | gFS | 8 |  |  | S | VDS=5V, ID=3.6A | 2 |
| Diode forward voltage | VSD |  | 0.76 | 1.2 | V | IS=0.94A, VGS=0V | 2 |
| Drain-source on-state resistance | RDS(ON) |  | 0.035 | 0.045 | Ω | VGS=4.5V, ID=4.2A | 2 |
| Drain-source on-state resistance | RDS(ON) |  | 0.045 | 0.06 | Ω | VGS=2.5V, ID=3.6A | 2 |
| Drain-source voltage | VDS |  |  | 20 | V | TA=25°C | 1 |
| Gate-source voltage | VGS | -12 |  | 12 | V | TA=25°C | 1 |
| Continuous drain current | ID |  |  | 4.2 | A | TA=25°C | 1 |
| Power dissipation | PD |  |  | 1.25 | W | TA=25°C | 1 |
| Thermal resistance from junction to ambient | RθJA |  |  | 0.01 | °C/W | t≤5s | 1 |
| Junction temperature | TJ |  |  | 150 | °C |  | 1 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `IRLML2502TR`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `irlml2502tr-etched.step` / `irlml2502tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `irlml2502tr.step` / `irlml2502tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755878791284056064) (9 pp, sha256 `e4a853f6bac0eb84`, retrieved 2026-10-16, 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/irlml2502tr-datasheet.pdf)