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Contents

README

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B5819W-MS

MSKSEMI · Schottky Diodes · SOD-123

B5819W-MS from MSKSEMI, 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 end marked '+' on the package outline and the bar side of the diode symbol; B5819W-MS blocks up to VR = 40 V (VRRM 40 V) with average rectified current IO of 1 A.
2 A passive Anode, the end marked '-' on the package outline and the triangle side of the diode symbol; carries up to 1 A average forward current (IFRM 1.5 A, IFSM 9 A for 8.3 ms).

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOD-123
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: B5819W-MS
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: b5819w-ms-etched.step / b5819w-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); b5819w-ms.step / b5819w-ms.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 b93786ab8ea4e558, retrieved 2026-10-09, 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