component
DO2318B
Public Made by Adomby adom
DOINGTER MOSFETs, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 17d ago |
| viewers | 17d ago |
| do2318b-etched.glb | 17d ago |
| do2318b-etched.step | 17d ago |
| do2318b-hero.glb | 17d ago |
| do2318b-hero.overlay.json | 17d ago |
| do2318b.glb | 17d ago |
| do2318b.kicad_mod | 17d ago |
| do2318b.kicad_sym | 17d ago |
| do2318b.lbr | 17d ago |
| do2318b.step | 17d ago |
| package.json | 17d ago |
| page.json | 17d ago |
| README.md | 17d ago |
DO2318B
DOINGTER · MOSFETs · SOT-23
DO2318B from DOINGTER, 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; gate-source voltage is rated at ±20 V maximum, with a typical threshold VGS(th) of 1.5 V (1 V min, 2.5 V max) at ID=250μA. |
| 2 | D | passive | Drain; drain-source voltage is rated at 40 V maximum, with continuous drain current of 5 A and pulsed drain current of 20 A. |
| 3 | S | passive | Source; connects to the body diode anode, which has a continuous current rating of 5 A and a forward voltage of 1.2 V max at ISD=5A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DOINGTER |
| 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 | 40 | V | 1 | |||
| Gate-Source Voltage | VGS | -20 | 20 | V | 1 | ||
| Continuous Drain Current | ID | 5 | A | 1 | |||
| Continuous Drain Current | ID | 3.5 | A | TA=100℃ | 1 | ||
| Pulsed Drain Current | IDM | 20 | A | 1 | |||
| Power Dissipation | PD | 1.8 | W | 1 | |||
| Operating and Storage Junction Temperature Range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance, Junction to Ambient | RƟJA | 70 | ℃/W | 1 | |||
| Drain-Source Breakdown Voltage | BVDSS | 40 | V | VGS=0V,ID=250μA | 2 | ||
| Zero Gate Voltage Drain Current | IDSS | 1 | μA | VGS=0V, VDS=40V | 2 | ||
| Gate-Source Leakage Current | IGSS | -100 | 100 | nA | VGS=±20V, VDS=0A | 2 | |
| Gate-Source Threshold Voltage | VGS(th) | 1 | 1.5 | 2.5 | V | VGS=VDS, ID=250μA | 2 |
| Drain-Source On Resistance | RDS(ON) | 28 | 40 | mΩ | VGS=10V,ID=4A | 2 | |
| Drain-Source On Resistance | RDS(ON) | 35 | 55 | mΩ | VGS=4.5V,ID=3A | 2 | |
| Diode Forward Voltage | VSD | 1.2 | V | VGS=0V, ISD=5A | 2 | ||
| Continuous Drain Current | IS | 5 | A | VD=VG=0V | 2 | ||
| Pulsed Drain Current | ISM | 20 | A | 2 |
CAD (KiCad official)
- Symbol:
DO2318B - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
do2318b-etched.step/do2318b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);do2318b.step/do2318b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOINGTER datasheet (7 pp, sha256
541959925d7db4e9, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).