component

SZ1SMB36CAT3G

Public Made by Adom

by adom

Littelfuse ESD And Surge Protection (TVS/ESD), SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcircuit protectionsz1smb36cat3gfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 22d ago
viewers sz1smb36cat3g: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
package.json Publish 0.1.0 · Ray 22d ago
page.json Set visibility: public · Ray 22d ago
README.md Publish 0.1.0 · Ray 22d ago
sz1smb36cat3g-etched.glb Publish 0.1.0 · Ray 22d ago
sz1smb36cat3g-etched.step sz1smb36cat3g: factory component page (tier=lcsc) · Ray 22d ago
sz1smb36cat3g-hero.glb sz1smb36cat3g: hero GLB from the etched model (keeps the MPN mark) · Ray 22d ago
sz1smb36cat3g-hero.overlay.json Publish 0.1.0 · Ray 22d ago
sz1smb36cat3g.glb Publish 0.1.0 · Ray 22d ago
sz1smb36cat3g.kicad_mod Publish 0.1.0 · Ray 22d ago
sz1smb36cat3g.kicad_sym sz1smb36cat3g: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
sz1smb36cat3g.lbr sz1smb36cat3g: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
sz1smb36cat3g.step Publish 0.1.0 · Ray 22d ago

SZ1SMB36CAT3G

Littelfuse · ESD And Surge Protection (TVS/ESD) · SMB

SZ1SMB36CAT3G from Littelfuse, 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 Cathode passive Terminal 1 of the non-polar bi-directional SZ1SMB36CAT3G, labeled Cathode on the package drawing; the device has VRWM of 36 V and a breakdown voltage VBR of 40.0 V min to 44.2 V max at IT = 1.0 mA.
2 Anode passive Terminal 2 of the non-polar bi-directional SZ1SMB36CAT3G, labeled Anode on the package drawing; the device has a maximum clamping voltage VC of 58.1 V at IPP = 10.3 A.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package SMB
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 (bi-directional, SZ1SMB36CAT3G) VBR 40 42.11 44.2 V @ IT = 1.0 mA (Note 7) 4
Peak Power Dissipation PPK 600 W TL = 25°C, Pulse Width = 1 ms (Note 1) 1
DC Power Dissipation @ TL = 75°C, measured zero lead length PD 3 W TL = 75°C, measured zero lead length (Note 2) 1
Derate above 75°C (zero lead length) 25 mW/°C Derate above 75°C 1
Thermal Resistance Junction-to-Lead RƟJL 40 °C/W 1
DC Power Dissipation @ TA = 25°C PD 0.55 W TA = 25°C (Note 3) 1
Derate above 25°C (ambient) 4.4 mW/°C Derate above 25°C 1
Thermal Resistance Junction-to-Ambient RƟJA 226 °C/W 1
Forward Surge Current IFSM 100 A TA = 25°C (Note 4) 1
Operating and Storage Temperature Range TJ, Tstg -65 150 °C 1

CAD (KiCad official)

  • Symbol: SZ1SMB36CAT3G
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: sz1smb36cat3g-etched.step / sz1smb36cat3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sz1smb36cat3g.step / sz1smb36cat3g.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (7 pp, sha256 b867ff8d1ae59140, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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