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SMB3Z3.3A

Public Made by Adom

by adom

ZHIDE Zener Diodes, SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 3d ago
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package.json Publish 0.1.0 · Ray 3d ago
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smb3z3-3a-etched.glb Publish 0.1.0 · Ray 3d ago
smb3z3-3a-etched.step smb3z3-3a: factory component page (tier=lcsc) · Ray 3d ago
smb3z3-3a-hero.glb smb3z3-3a: hero GLB from the etched model (keeps the MPN mark) · Ray 3d ago
smb3z3-3a-hero.overlay.json Publish 0.1.0 · Ray 3d ago
smb3z3-3a.glb Publish 0.1.0 · Ray 3d ago
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SMB3Z3.3A

ZHIDE · Zener Diodes · SMB

SMB3Z3.3A from ZHIDE, 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 color band, which goes positive relative to the anode in zener breakdown with VZ 3.3 V nominal (3.14 to 3.47 V) at IZT = 227.3 mA.
2 A passive Anode, the end opposite the color band, with maximum forward voltage of 1.2 V at IF = 200 mA and 3.0 W DC power dissipation at TL = 75 °C.

Key specifications

Parameter Value
Manufacturer ZHIDE
Package SMB
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
Maximum forward voltage VF 1.2 V if=200mA 1
Zener voltage min/max VZ 3.14 3.3 3.47 V @IZT 3
Maximum Zener impedance ZZT 10 Ω @IZT 3
Maximum Zener impedance at knee ZZK 500 Ω @IZK 3
Maximum reverse leakage current IR 100 uA @VR=1.0 V 3
Maximum DC Zener current IZM 817 mA 3
DC power dissipation PD 3 W TL = 75 °C 1
Storage temperature range TJ, TSTG -55 150 ℃ 1
Junction temperature range TJ, TSTG -55 150 ℃ 1
Test current IZT 227.3 mA 3
Knee test current IZK 1 mA 3
Nominal Zener voltage VZ AVE. 3.3 V @IZT 3

CAD (KiCad official)

  • Symbol: SMB3Z3.3A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: smb3z3-3a-etched.step / smb3z3-3a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smb3z3-3a.step / smb3z3-3a.glb are the bare package body.

Provenance

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

  • Datasheet: ZHIDE datasheet (3 pp, sha256 3cd52cbc4a75bfcc, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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