component

SMBJ17A

Public Made by Adom

by adom

Liown TVS, 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.

componenttvs-fuse-board level protectionsmbj17afactory-2.0.0extractor-text
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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 19d ago
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package.json Publish 0.1.0 · Ray 19d ago
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README.md Publish 0.1.0 · Ray 19d ago
smbj17a-etched.glb Publish 0.1.0 · Ray 19d ago
smbj17a-etched.step smbj17a: factory component page (tier=lcsc) · Ray 19d ago
smbj17a-hero.glb smbj17a: hero GLB from the etched model (keeps the MPN mark) · Ray 19d ago
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smbj17a.glb Publish 0.1.0 · Ray 19d ago
smbj17a.kicad_mod Publish 0.1.0 · Ray 19d ago
smbj17a.kicad_sym smbj17a: KiCad Device:Fuse symbol instead of a box (two-terminal passive) · Ray 12d ago
smbj17a.lbr smbj17a: KiCad Device:Fuse symbol instead of a box (two-terminal passive) · Ray 12d ago
smbj17a.step Publish 0.1.0 · Ray 19d ago

SMBJ17A

Liown · TVS · SMB(DO-214AA)

SMBJ17A 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 1 passive Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer Liown
Package SMB(DO-214AA)
Category TVS/Fuse/Board Level 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
Breakdown Voltage (unidirectional, SMBJ17A) VB 18.9 20.9 V @IT 1 mA 2
Maximum Clamping Voltage (unidirectional, SMBJ17A) VC 27.6 V @IPP 21.8 A 2
Reverse Leakage (unidirectional, SMBJ17A) IR 1 μA @VR 17.0 V 2
Peak Pulse Power Dissipation PPPM 600 W 10/1000μs waveform 1
Steady State Power Dissipation PM(AV) 5 W TA=50℃ 1
Maximum Instantaneous Forward Voltage VF 3.5 V at 50A for unidirectional only; 5.0V applies to stacked-die parts 1
Peak Forward Surge Current IFSM 60 A 8.3ms single half sine-wave, JEDEC method 1
Operating Junction and Storage Temperature Ranges TJ、TSTG -55 150 ℃ 1
Reverse Stand-Off Voltage (unidirectional, SMBJ17A) VR 17 V 2
Typical Thermal Resistance Junction to Lead RθJL 20 ℃/W 1
Typical Thermal Resistance Junction to Ambient RθJA 100 ℃/W 1

CAD (KiCad official)

  • Symbol: SMBJ17A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: smbj17a-etched.step / smbj17a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj17a.step / smbj17a.glb are the bare package body.

Provenance

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

  • Datasheet: Liown datasheet (6 pp, sha256 9b28142862552270, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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