component
SM5819WS
Public Made by Adomby adom
Leiditech Diodes - General Purpose, SOD-323FL. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdownSM5819WS
Leiditech · Diodes - General Purpose · SOD-323FL
SM5819WS from Leiditech, in a SOD-323FL. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | SOD-323FL |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse breakdown voltage | V(BR) | 40 | V | IR=1mA | 1 | ||
| Reverse leakage current | IR | 1 | mA | VR=40V | 1 | ||
| Forward voltage | VF | 0.6 | V | IF=1A | 1 | ||
| Forward voltage | VF | 0.9 | V | IF=3A | 1 | ||
| Diode capacitance | CD | 120 | pF | VR=4V, f=1MHz | 1 | ||
| Non-repetitive peak reverse voltage | VRM | 40 | V | TA=25℃ | 1 | ||
| Peak repetitive reverse voltage / working peak reverse voltage / DC blocking voltage | VRRM/VRWM/VR | 40 | V | TA=25℃ | 1 | ||
| RMS reverse voltage | VR(RMS) | 28 | V | TA=25℃ | 1 | ||
| Average rectified output current | IO | 1 | A | TA=25℃ | 1 | ||
| Peak forward surge current | IFSM | 9 | A | 8.3ms | 1 | ||
| Repetitive peak forward current | IFRM | 1.5 | A | TA=25℃ | 1 | ||
| Power dissipation | Pd | 250 | mW | TA=25℃ | 1 | ||
| Thermal resistance junction to ambient | RθJA | 500 | ℃/W | 1 | |||
| Storage temperature | TSTG | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
SM5819WS - Footprint:
Diode_SMD:D_SOD-323F - 3D model: SOD-323FL (KiCad packages3D, STEP)
- 3D model files:
sm5819ws-etched.step/sm5819ws-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sm5819ws.step/sm5819ws.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Leiditech datasheet (2 pp, sha256
9e28e4fa9e07d7de, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).