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B5817WS SJ

Public Made by Adom

by adom

Changjing Schottky Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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B5817WS 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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); b5817ws-sj.step / b5817ws-sj.glb are 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, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF