component

TPSMC18A

Public Made by Adom

by adom

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

componentcircuit protectiontpsmc18afactory-2.0.0extractor-text

Changed since verified TPSMC18A

by Ray · last 30 Oct 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier lcsc, 2 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: TPSMC18A · DO-214AB(SMCJ) · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 5-page datasheet
  • ✓distributor: lcsc C1975187, digikey F6521TR-ND, mouser 576-TPSMC18A
  • ✓family: D_SMC
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-o0wke5_j/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! tpsmc18a.kicad_sym✓ tpsmc18a.kicad_mod✓ tpsmc18a.step
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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 6d ago
viewers tpsmc18a: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
package.json Publish 0.1.0 · Ray 6d ago
page.json Set visibility: public · Ray 6d ago
README.md Publish 0.1.0 · Ray 6d ago
tpsmc18a-etched.glb Publish 0.1.0 · Ray 6d ago
tpsmc18a-etched.step tpsmc18a: factory component page (tier=lcsc) · Ray 6d ago
tpsmc18a-hero.glb tpsmc18a: hero GLB from the etched model (keeps the MPN mark) · Ray 6d ago
tpsmc18a-hero.overlay.json Publish 0.1.0 · Ray 6d ago
tpsmc18a.glb Publish 0.1.0 · Ray 6d ago
tpsmc18a.kicad_mod Publish 0.1.0 · Ray 6d ago
tpsmc18a.kicad_sym tpsmc18a: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
tpsmc18a.lbr tpsmc18a: symbol repaired (D_Zener, cathode pad 1) · Ray 1d ago
tpsmc18a.step Publish 0.1.0 · Ray 6d ago
verification.json Verified: Published by the parts factory: tier lcsc, 2 pins · Ray 6d ago

TPSMC18A

Littelfuse · TVS · DO-214AB(SMCJ)

TPSMC18A from Littelfuse, in a DO-214AB(SMCJ). 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-214AB(SMCJ)
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 (min) VBR 17.1 V @ IT = 1 mA 2
Breakdown Voltage (max) VBR 18.9 V @ IT = 1 mA 2
Reverse Stand-off Voltage VR 15.3 V 2
Maximum Reverse Leakage Current IR 1 µA @ VR 2
Maximum Clamping Voltage VC 25.2 V @ Ipp = 60.3 A 2
Maximum Peak Pulse Current Ipp 60.3 A 2
Peak Pulse Power Dissipation PPPM 1500 W 10/1000µs waveform (Fig.2) 1
Power Dissipation on Infinite Heat Sink PM(AV) 6.5 W TA=50°C 1
Peak Forward Surge Current IFSM 200 A 8.3ms single half sine wave 1
Maximum Instantaneous Forward Voltage VF 3.5 V @ 100A, unidirectional only 1
Operating Junction and Storage Temperature Range TJ, TSTG -65 150 °C 1
Typical Thermal Resistance Junction to Lead RuJL 15 °C/W 1
Typical Thermal Resistance Junction to Ambient RuJA 75 °C/W 1

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: TPSMC18A
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB(SMCJ) (KiCad packages3D, STEP)
  • 3D model files: tpsmc18a-etched.step / tpsmc18a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpsmc18a.step / tpsmc18a.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (5 pp, sha256 dd1f7a59f449c6bc, retrieved 2026-10-30, 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