component

1.5SMB75A

Public Made by Adom

by adom

Littelfuse ESD And Surge Protection (TVS/ESD), DO-214AA(SMBJ). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componentcircuit protection1.5smb75afactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
1-5smb75a / README.md
History Download
Ray Publish 0.1.0 c52d38c 5d ago

1.5SMB75A

Littelfuse · ESD And Surge Protection (TVS/ESD) · DO-214AA(SMBJ)

1.5SMB75A from Littelfuse, in a DO-214AA(SMBJ). 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 Littelfuse
Package DO-214AA(SMBJ)
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 VBR, minimum (1.5SMB75A, unidirectional) VBR 71.3 V @ IT test current 1 mA 2
Breakdown Voltage VBR, maximum (1.5SMB75A, unidirectional) VBR 78.8 V @ IT test current 1 mA 2
Maximum Clamping Voltage VC @ Ipp 10/1000us VC 103 V @ Ipp 10/1000µs 2
Maximum Peak Pulse Current Ipp 10/1000us Ipp 14.8 A 10/1000µs 2
Maximum Clamping Voltage VC @ Ipp 8/20us VC 133.1 V @ Ipp 8/20µs 2
Maximum Peak Pulse Current Ipp 8/20us Ipp 81.4 A 8/20µs 2
Maximum Reverse Leakage Current IR 1 µA @ VR 2
Maximum Temperature Coefficient of VBR 0.104 %/C 2
Peak Pulse Power Dissipation PPPM 1500 W 10/1000µs waveform (Fig.2) (Note 1), (Note 2) 1
Power Dissipation on Infinite Heat Sink PD 5 W at TL = 50°C 1
Peak Forward Surge Current IFSM 120 A 8.3ms single half sine wave (Note 3) 1
Maximum Instantaneous Forward Voltage VF 5 V at 50A, unidirectional only 1
Operating Temperature Range TJ -65 150 °C 1
Storage Temperature Range TSTG -65 175 °C 1
Typical Thermal Resistance Junction to Lead RθJL 20 °C/W typical, junction to lead 1
Typical Thermal Resistance Junction to Ambient RθJA 100 °C/W typical, junction to ambient 1
Stand-off Voltage VR 64.1 V 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin • Matte tin lead-free Plated • Halogen free and RoHS 1

CAD (KiCad official)

  • Symbol: 1.5SMB75A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: DO-214AA(SMBJ) (KiCad packages3D, STEP)
  • 3D model files: 1-5smb75a-etched.step / 1-5smb75a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1-5smb75a.step / 1-5smb75a.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 edddb435792266f3, retrieved 2026-10-16, 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