component

TPSMB33CA

Public Made by Adom

by adom

Littelfuse TVS, DO-214AA. Pinout cross-checked by two models against the datasheet, 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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package.json Publish 0.1.1 · Ray 4h ago
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README.md Publish 0.1.0 · Ray 6h ago
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tpsmb33ca-etched.step tpsmb33ca: factory component page (tier=lcsc) · Ray 4h ago
tpsmb33ca-hero.glb tpsmb33ca: hero GLB from the etched model (keeps the MPN mark) · Ray 4h ago
tpsmb33ca-hero.overlay.json Publish 0.1.0 · Ray 6h ago
tpsmb33ca.glb Publish 0.1.0 · Ray 6h ago
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tpsmb33ca.step Publish 0.1.0 · Ray 6h ago

TPSMB33CA

Littelfuse · TVS · DO-214AA

TPSMB33CA from Littelfuse, in a DO-214AA. 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, standoff voltage VR 28.2 V, breakdown 31.4 to 34.7 V at 1 mA, and maximum clamping voltage 45.7 V at 13.3 A.
2 A2 passive Second bidirectional TVS terminal, interchangeable with the other terminal (no cathode band on bidirectional parts), 600 W peak pulse power at 10/1000 µs.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package DO-214AA
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
Maximum Clamping Voltage VC 45.7 V @ Ipp = 13.3 A 2
Maximum Peak Pulse Current Ipp 13.3 A 2
Maximum Reverse Leakage IR 1 µA @ VR 2
Reverse Stand-off Voltage VR 28.2 V 2
Test Current IT 1 mA 2
Typical IR at 150°C IR 8 µA 150°C 2
Maximum Temperature coefficient of VBR αT 0.094 %/C 2
Peak Pulse Power Dissipation PPPM 600 W 10/1000µs waveform 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
Typical Thermal Resistance Junction to Lead RθJL 20 °C/W 1
Typical Thermal Resistance Junction to Ambient RθJA 100 °C/W 1
VBR voltage tolerance -5 5 % 5% VBR voltage tolerance (A suffix per part numbering) 6

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 seconds at terminals • Matte tin lead-free plated 1

CAD (KiCad official)

  • Symbol: TPSMB33CA
  • Footprint: Diode_SMD:D_SMB
  • 3D model: DO-214AA (KiCad packages3D, STEP)
  • 3D model files: tpsmb33ca-etched.step / tpsmb33ca-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpsmb33ca.step / tpsmb33ca.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 11f500633484b187, retrieved 2026-10-27, 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