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B5817WS SJ
Public Made by Adomby adom
Changjing Schottky Diodes, SOD-323. 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
markdownB5817WS SJ
Changjing · Schottky Diodes · SOD-323
B5817WS SJ from Changjing, in a SOD-323. 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 end marked with the band and the '-' sign in the package drawing; the B5817WS (marking SJ) allows VRRM/VR of 20 V and IO of 1 A. |
| 2 | A | passive | Anode, the end marked '+' in the package drawing; forward voltage is 0.45 V max at IF=1 A and 0.75 V max at IF=3 A for the B5817WS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOD-323 |
| 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) | 20 | V | IR= 1mA | 1 | ||
| Reverse voltage leakage current | IR | 1 | mA | VR=20V (B5817WS) | 1 | ||
| Forward voltage | VF | 0.45 | V | IF=1A | 1 | ||
| Forward voltage | VF | 0.75 | V | IF=3A | 1 | ||
| Diode capacitance | CD | 120 | pF | VR=4V, f=1MHz | 1 | ||
| Non-repetitive peak reverse voltage | VRM | 20 | V | 1 | |||
| Peak repetitive reverse voltage | VRRM | 20 | V | 1 | |||
| Working peak reverse voltage | VRWM | 20 | V | 1 | |||
| DC blocking voltage | VR | 20 | V | 1 | |||
| RMS reverse voltage | VR(RMS) | 14 | V | 1 | |||
| Average rectified output current | IO | 1 | A | 1 | |||
| Peak forward surge current | IFSM | 9 | A | t=8.3ms | 1 | ||
| Repetitive peak forward current | IFRM | 1.5 | A | 1 | |||
| Power dissipation | Pd | 250 | mW | 1 | |||
| Thermal resistance junction to ambient | RθJA | 400 | ℃/W | 1 | |||
| Storage temperature | TSTG | -55 | 150 | ℃ | 1 | ||
| Junction temperature | TJ | 125 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
B5817WS SJ - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
b5817ws-sj-etched.step/b5817ws-sj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);b5817ws-sj.step/b5817ws-sj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (2 pp, sha256
0613d1adee14bcbe, retrieved 2026-10-31, 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).