component

SMDJ33A

Public Made by Adom

by adom

DOWO TVS, SMC(DO-214AB). 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 protectionsmdj33afactory-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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package.json Publish 0.1.0 · Ray 20d ago
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README.md Publish 0.1.0 · Ray 20d ago
smdj33a-etched.glb Publish 0.1.0 · Ray 20d ago
smdj33a-etched.step smdj33a: factory component page (tier=lcsc) · Ray 20d ago
smdj33a-hero.glb smdj33a: hero GLB from the etched model (keeps the MPN mark) · Ray 20d ago
smdj33a-hero.overlay.json Publish 0.1.0 · Ray 20d ago
smdj33a.glb Publish 0.1.0 · Ray 20d ago
smdj33a.kicad_mod Publish 0.1.0 · Ray 20d ago
smdj33a.kicad_sym smdj33a: KiCad Device:Fuse symbol instead of a box (two-terminal passive) · Ray 12d ago
smdj33a.lbr smdj33a: KiCad Device:Fuse symbol instead of a box (two-terminal passive) · Ray 12d ago
smdj33a.step Publish 0.1.0 · Ray 20d ago

SMDJ33A

DOWO · TVS · SMC(DO-214AB)

SMDJ33A from DOWO, in a SMC(DO-214AB). 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 DOWO
Package SMC(DO-214AB)
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 VBR 36.7 40.6 V @IT = 1 mA 3
Maximum reverse leakage current IR 2 uA @VRWM = 33.0 V 3
Working peak reverse voltage VRWM 33 V 3
Maximum reverse surge current IPP 56.29 A 3
Maximum clamping voltage VC 53.3 V @IPP 3
Maximum instantaneous forward voltage VF 3.5 V at 100A, unidirectional only; note 3: devices with VBR<200V 1
Peak power dissipation PPP 3000 W 10/1000us waveform 1
Power dissipation on infinite heatsink PD 6.5 W TL = 75 °C 1
Peak forward surge current IFSM 300 A 8.3 ms single half sine-wave, unidirectional only 1
Operating junction and storage temperature range TJ, TSTG -55 150 °C 1

CAD (KiCad official)

  • Symbol: SMDJ33A
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
  • 3D model files: smdj33a-etched.step / smdj33a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smdj33a.step / smdj33a.glb are the bare package body.

Provenance

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

  • Datasheet: DOWO datasheet (4 pp, sha256 b1b4fc7c8d588fb1, 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