component

TPSMB20CA

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 protectiontpsmb20cafactory-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 23d ago
viewers tpsmb20ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
package.json Publish 0.1.0 · Ray 23d ago
page.json Set visibility: public · Ray 23d ago
README.md Publish 0.1.0 · Ray 23d ago
tpsmb20ca-etched.glb Publish 0.1.0 · Ray 23d ago
tpsmb20ca-etched.step tpsmb20ca: factory component page (tier=lcsc) · Ray 23d ago
tpsmb20ca-hero.glb tpsmb20ca: hero GLB from the etched model (keeps the MPN mark) · Ray 23d ago
tpsmb20ca-hero.overlay.json Publish 0.1.0 · Ray 23d ago
tpsmb20ca.glb Publish 0.1.0 · Ray 23d ago
tpsmb20ca.kicad_mod Publish 0.1.0 · Ray 23d ago
tpsmb20ca.kicad_sym tpsmb20ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
tpsmb20ca.lbr tpsmb20ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
tpsmb20ca.step Publish 0.1.0 · Ray 23d ago

TPSMB20CA

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

TPSMB20CA 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 (min/max) VBR 19 21 V @ IT = 1 mA 2
Reverse stand-off voltage VR 17.1 V 2
Maximum clamping voltage VC 27.7 V @ Ipp = 22.0 A 2
Maximum peak pulse current Ipp 22 A 2
Maximum reverse leakage current IR 1 µA @ VR 2
Maximum temperature coefficient of VBR αT 0.085 %/C of VBR 2
VBR voltage tolerance (CA suffix) -5 5 % 5% VBR voltage tolerance, bi-directional CA suffix 5
Peak pulse power dissipation PPPM 600 W 10/1000µs waveform (Fig.1) 1
Power dissipation on infinite heat sink PM(AV) 5 W TL = 50°C 1
Peak forward surge current IFSM 100 A 8.3 ms single half sine wave (Note 3) 1
Operating junction temperature range (VBR ≤ 91V) TJ -65 175 °C VBR ≤ 91V 1
Storage temperature range TSTG -65 175 °C 1
Typical thermal resistance junction to lead RθJL 20 °C/W junction to lead 1
Typical thermal resistance junction to ambient RθJA 100 °C/W junction to ambient 1

CAD (KiCad official)

  • Symbol: TPSMB20CA
  • Footprint: Diode_SMD:D_SMB
  • 3D model: DO-214AA(SMBJ) (KiCad packages3D, STEP)
  • 3D model files: tpsmb20ca-etched.step / tpsmb20ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpsmb20ca.step / tpsmb20ca.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 8cc50e1afb0bea8d, retrieved 2026-10-14, 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