component

SMBJ30CA-Q

Public Made by Adom

by adom

Liown ESD And Surge Protection (TVS/ESD), SMB(DO-214AA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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 15d ago
viewers smbj30ca-q: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
package.json Publish 0.1.0 · Ray 15d ago
page.json Set visibility: public · Ray 15d ago
README.md Publish 0.1.0 · Ray 15d ago
smbj30ca-q-etched.glb Publish 0.1.0 · Ray 15d ago
smbj30ca-q-etched.step smbj30ca-q: factory component page (tier=lcsc) · Ray 15d ago
smbj30ca-q-hero.glb smbj30ca-q: hero GLB from the etched model (keeps the MPN mark) · Ray 15d ago
smbj30ca-q-hero.overlay.json Publish 0.1.0 · Ray 15d ago
smbj30ca-q.glb Publish 0.1.0 · Ray 15d ago
smbj30ca-q.kicad_mod Publish 0.1.0 · Ray 15d ago
smbj30ca-q.kicad_sym smbj30ca-q: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smbj30ca-q.lbr smbj30ca-q: symbol repaired (D_Zener, cathode pad 1) · Ray 2d ago
smbj30ca-q.step Publish 0.1.0 · Ray 15d ago

SMBJ30CA-Q

Liown · ESD And Surge Protection (TVS/ESD) · SMB(DO-214AA)

SMBJ30CA-Q from Liown, 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 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Liown
Package SMB(DO-214AA)
Category Circuit Protection
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 Stand-Off Voltage VR 30 V 2
Breakdown Voltage VB 33.3 36.8 V @IT = 1 mA 2
Maximum Clamping Voltage VC 48.4 V @IPP = 12.4 A 2
Peak Pulse Current IPP 12.4 A 10/1000μs waveform 2
Reverse Leakage IR 1 μA @VR = 30 V 2
Peak pulse power dissipation PPPM 600 W 10/1000μs waveform, TA=25℃ 1
Steady state power dissipation PM(AV) 5 W TA=50℃ 1
Peak forward surge current IFSM 60 A 8.3ms single half sine-wave superimposed on rated load 1
Operating junction and storage temperature TJ, TSTG -55 150 ℃ 1
Thermal resistance junction to lead RθJL 20 ℃/W Typical 1
Thermal resistance junction to ambient RθJA 100 ℃/W Typical 1

CAD (KiCad official)

  • Symbol: SMBJ30CA-Q
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: smbj30ca-q-etched.step / smbj30ca-q-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj30ca-q.step / smbj30ca-q.glb are the bare package body.

Provenance

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

  • Datasheet: Liown datasheet (6 pp, sha256 08620b4b14f97f1b, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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