component
SI2319A
Public Made by Adomby adom
UMW MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSI2319A
UMW · MOSFETs · SOT-23
SI2319A 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 P-channel MOSFET; the datasheet rates the gate-source voltage VGS at ±20 V. |
| 2 | S | passive | SOURCE terminal; the datasheet rates the continuous source-drain diode current IS at -1.25 A. |
| 3 | D | passive | DRAIN terminal; the datasheet rates the drain-source voltage VDS at -40 V and the continuous drain current ID at -4.4 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 | -40 | V | VGS=0V, ID=-250µA | 2 | ||
| Gate-source threshold voltage | VGS(th) | -1 | -3 | V | VDS=VGS, ID=-250µA | 2 | |
| Gate-source leakage | IGSS | -100 | 100 | nA | VDS=0V, VGS=±20V | 2 | |
| Zero gate voltage drain current | IDSS | -1 | µA | VDS=-40V, VGS=0V | 2 | ||
| Diode forward voltage | VSD | -0.8 | -1.25 | V | IS=-1.25A, VGS=0V | 2 | |
| Drain-source on-state resistance | RDS(ON) | 50 | mΩ | VGS=-10V, ID=-4.4A | 2 | ||
| Drain-source on-state resistance | RDS(ON) | 55 | mΩ | VGS=-4.5V, ID=-3.5A | 2 | ||
| Drain-source voltage | VDS | -40 | V | TA=25°C | 1 | ||
| Gate-source voltage | VGS | -20 | 20 | V | TA=25°C | 1 | |
| Continuous drain current | ID | -4.4 | A | TA=25°C | 1 | ||
| Pulsed drain current | IDM | -12 | A | 1 | |||
| Continuous source-drain diode current | IS | -1.25 | A | TA=25°C | 1 | ||
| Power dissipation | PD | 1.25 | W | TA=25°C | 1 | ||
| Thermal resistance from junction to ambient | RthJF | 166 | °C/W | t≤5s | 1 | ||
| Operating junction temperature | TJ | 150 | °C | 1 | |||
| Storage temperature | TSTG | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
SI2319A - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
si2319a-etched.step/si2319a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);si2319a.step/si2319a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (9 pp, sha256
a7ec0647ef8ae345, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).