component

SMLJ33CA

Public Made by Adom

by adom

BOURNS 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.

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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 8d ago
viewers smlj33ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago
smlj33ca-etched.glb Publish 0.1.0 · Ray 8d ago
smlj33ca-etched.step smlj33ca: factory component page (tier=lcsc) · Ray 8d ago
smlj33ca-hero.glb smlj33ca: hero GLB from the etched model (keeps the MPN mark) · Ray 8d ago
smlj33ca-hero.overlay.json Publish 0.1.0 · Ray 8d ago
smlj33ca.glb Publish 0.1.0 · Ray 8d ago
smlj33ca.kicad_mod Publish 0.1.0 · Ray 8d ago
smlj33ca.kicad_sym smlj33ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
smlj33ca.lbr smlj33ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
smlj33ca.step Publish 0.1.0 · Ray 8d ago

SMLJ33CA

BOURNS · TVS · SMC(DO-214AB)

SMLJ33CA from BOURNS, 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 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 BOURNS
Package SMC(DO-214AB)
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
Breakdown Voltage (bidirectional SMLJ33CA) VBR 36.7 40.6 V @ IT = 1 mA 2
Maximum Reverse Leakage @ VRWM (SMLJ33CA, VRWM = 33 V) IR 2 μA @ VRWM = 33 V 2
Maximum Clamping Voltage @ Ipp (10/1000 µs) Vc 53.3 V @ Ipp = 56.20 A, 10/1000 µs 2
Maximum Peak Pulse Current (10/1000 µs) Ipp 56.2 A 10/1000 µs 2
Maximum Clamping Voltage @ Ipp (8/20 µs) Vc 69.3 V @ Ipp = 281.50 A, 8/20 µs 2
Maximum Peak Pulse Current (8/20 µs) Ipp 281.5 A 8/20 µs 2
Minimum Peak Pulse Power Dissipation PPK 3000 Watts TP = 1 ms (Notes 1, 2) 1
Peak Forward Surge Current IFSM 300 Amps 8.3 ms single half sine wave superimposed on rated load, JEDEC method (Note 3) 1
Steady State Power Dissipation PM(AV) 5 Watts @ TL = 75 °C 1
Working Peak Reverse Voltage (SMLJ33CA) VRWM 33 V Bidirectional SMLJ33CA working peak reverse voltage 2
Operating Temperature Range TJ -55 150 °C 1
Storage Temperature Range TSTG -55 150 °C 1

CAD (KiCad official)

  • Symbol: SMLJ33CA
  • Footprint: Diode_SMD:D_SMC
  • 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
  • 3D model files: smlj33ca-etched.step / smlj33ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smlj33ca.step / smlj33ca.glb are the bare package body.

Provenance

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

  • Datasheet: BOURNS datasheet (6 pp, sha256 42dea63b7010613e, retrieved 2026-10-29, 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