component
AD-B5819W
Public Made by Adomby adom
Changjing Schottky Barrier Diodes (SBD), SOD-123. 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
markdownAD-B5819W
Changjing · Schottky Barrier Diodes (SBD) · SOD-123
AD-B5819W from Changjing, in a SOD-123. 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 | Changjing |
| Package | SOD-123 |
| 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 |
|---|---|---|---|---|---|---|---|
| DC blocking voltage | VR | 40 | V | Tj = 25°C | 2 | ||
| RMS reverse voltage | VR(RMS) | 28 | V | Tj = 25°C | 2 | ||
| Forward current | IO | 1 | A | Tj = 25°C | 2 | ||
| Non-repetitive peak forward surge current | IFSM | 9 | A | t = 8.3ms | 2 | ||
| Repetitive peak forward current | IFRM | 1.5 | A | Tj = 25°C | 2 | ||
| Power dissipation | PD | 500 | mW | Tj = 25°C | 2 | ||
| Thermal resistance from junction to ambient | RθJA | 200 | °C/W | 2 | |||
| Operating junction temperature range | Tj | -40 | 125 | °C | 2 | ||
| Storage temperature range | Tstg | -55 | 150 | °C | 2 | ||
| Reverse breakdown voltage | V(BR) | 40 | V | IR = 1mA | 2 | ||
| Forward voltage | VF | 0.6 | V | IF = 1A | 2 | ||
| Forward voltage | VF | 0.9 | V | IF = 3A | 2 | ||
| Reverse current | IR | 1 | mA | VR = 40V | 2 | ||
| Diode capacitance | CD | 120 | pF | VR = 4V, f = 1MHz | 2 |
CAD (KiCad official)
- Symbol:
AD-B5819W - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
ad-b5819w-etched.step/ad-b5819w-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-b5819w.step/ad-b5819w.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
79b938f7823b6535, 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).