component

TPSMB12CA

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.

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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 21d ago
viewers tpsmb12ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
package.json Publish 0.1.0 · Ray 21d ago
page.json Set visibility: public · Ray 21d ago
README.md Publish 0.1.0 · Ray 21d ago
tpsmb12ca-etched.glb Publish 0.1.0 · Ray 21d ago
tpsmb12ca-etched.step tpsmb12ca: factory component page (tier=lcsc) · Ray 21d ago
tpsmb12ca-hero.glb tpsmb12ca: hero GLB from the etched model (keeps the MPN mark) · Ray 21d ago
tpsmb12ca-hero.overlay.json Publish 0.1.0 · Ray 21d ago
tpsmb12ca.glb Publish 0.1.0 · Ray 21d ago
tpsmb12ca.kicad_mod Publish 0.1.0 · Ray 21d ago
tpsmb12ca.kicad_sym tpsmb12ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
tpsmb12ca.lbr tpsmb12ca: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
tpsmb12ca.step Publish 0.1.0 · Ray 21d ago

TPSMB12CA

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

TPSMB12CA 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
Peak Pulse Power Dissipation (10/1000µs waveform) PPPM 600 W 10/1000µs waveform (Fig.1)(Note 1), (Note 2) 1
Power Dissipation on infinite heat sink PM(AV) 5 W TL=50°C 1
Operating Junction Temperature Range (VBR ≤ 91V) TJ -65 175 °C VBR ≤ 91V 1
Storage Temperature Range TSTG -65 175 °C 1
Breakdown Voltage VBR 11.4 12.6 V @ IT = 1 mA 2
Maximum Clamping Voltage VC 16.7 V @ Ipp = 36.5 A 2
Maximum Peak Pulse Current Ipp 36.5 A 2
Maximum Reverse Leakage Current IR 5 µA @ VR = 10.20 V 2
Maximum Temperature Coefficient of VBR 0.071 %/C 2
VBR Voltage Tolerance (CA bidirectional series) -5 5 % Printed as 5% VBR voltage tolerance in the TPSMB XXX CA part-numbering diagram 5
Typical Thermal Resistance Junction to Lead RθJL 20 °C/W 1
Typical Thermal Resistance Junction to Ambient RθJA 100 °C/W 1
Typical Reverse Leakage Current IR 8 μA @ 150°C 2
Reverse Stand-off Voltage VR 10.2 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 260°C/10 seconds at terminals ■ Matte tin lead-free plated 1

CAD (KiCad official)

  • Symbol: TPSMB12CA
  • Footprint: Diode_SMD:D_SMB
  • 3D model: DO-214AA(SMBJ) (KiCad packages3D, STEP)
  • 3D model files: tpsmb12ca-etched.step / tpsmb12ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpsmb12ca.step / tpsmb12ca.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 2026-10-16, 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