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Contents

README

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1SMB5947B-13

Diodes Incorporated · Zener Diodes · SMB

1SMB5947B-13 from Diodes Incorporated, in a SMB. 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, marked by the cathode band on the SMB body; positive terminal when the zener is reverse-biased in regulation (VZ 77.9V min, 82V typ, 86.1V max at IZT = 4.6mA for the 1SMB5947B).
2 A passive Anode, the terminal opposite the cathode band on the SMB body; forward voltage is 1.5V max at IF = 200mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SMB
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: 1SMB5947B-13
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: 1smb5947b-13-etched.step / 1smb5947b-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1smb5947b-13.step / 1smb5947b-13.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 c06473e556bd519c, retrieved 2026-10-13, 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