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Contents

README

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B340B

FUXINSEMI · Schottky Barrier Diodes (SBD) · SMB(DO-214AA)

B340B from FUXINSEMI, in a SMB(DO-214AA). 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 cathode passive Cathode terminal, marked by the color band on the package; the datasheet gives no electrical limits for this pin alone, but the B340B rating is 40 V VRRM and 3.0 A average rectified output current.
2 anode passive Anode terminal, opposite the cathode band; the datasheet gives no electrical limits for this pin alone, and the 3.0 A average output current and 40 V reverse voltage apply to the device as a whole.

Key specifications

Parameter Value
Manufacturer FUXINSEMI
Package SMB(DO-214AA)
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: B340B
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: b340b-etched.step / b340b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); b340b.step / b340b.glb are the bare package body.

Provenance

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

  • Datasheet: FUXINSEMI datasheet (4 pp, sha256 f84fb5ded74a65ee, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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