component

TPSMC33CA

Public Made by Adom

by adom

Littelfuse TVS, DO-214AB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcircuit protectiontpsmc33cafactory-2.0.0extractor-text

Changed since verified TPSMC33CA

by Ray · last 31 Oct 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

31 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: TPSMC33CA · DO-214AB · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: all 2 pin names found in the 6-page datasheet
  • ✓distributor: lcsc C468920, digikey F6534TR-ND, mouser 576-TPSMC33CA
  • ✓family: D_SMC
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-pqb3gn0t/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.5)
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! tpsmc33ca.kicad_sym✓ tpsmc33ca.kicad_mod✓ tpsmc33ca.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

TPSMC33CA

Littelfuse · TVS · DO-214AB

TPSMC33CA from Littelfuse, in a DO-214AB. 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 A1 passive Bidirectional TVS terminal with no polarity (TPSMC33CA); 31.4V min to 34.7V max breakdown at 1mA, 28.2V reverse standoff, 45.7V max clamping at 33.3A Ipp.
2 A2 passive Bidirectional TVS terminal with no polarity (TPSMC33CA); no cathode band is marked on bidirectional parts, and the device is rated 1500W peak pulse power at 10/1000µs.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package DO-214AB
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 31.4 34.7 V @ IT = 1 mA 2
Reverse Stand-off Voltage VR 28.2 V 2
Maximum Clamping Voltage VC 45.7 V @ Ipp = 33.3 A 2
Maximum Peak Pulse Current Ipp 33.3 A 2
Maximum Reverse Leakage IR 1 µA @ VR 2
Test Current IT 1 mA 2
Peak Pulse Power Dissipation PPPM 1500 W 10/1000µs waveform, TA=25°C 1
Power Dissipation on Infinite Heat Sink PM(AV) 6.5 W TA=50°C 1
Operating Junction and Storage Temperature Range TJ, TSTG -65 150 °C 1
Typical Thermal Resistance Junction to Lead RθJL 15 °C/W 1
Typical Thermal Resistance Junction to Ambient RθJA 75 °C/W 1
VBR Voltage Tolerance -5 5 % 5% VBR voltage tolerance per part numbering system 5

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: TPSMC33CA
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB (KiCad packages3D, STEP)
  • 3D model files: tpsmc33ca-etched.step / tpsmc33ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpsmc33ca.step / tpsmc33ca.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 57f48c999c1a3dca, retrieved 2026-10-31, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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