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Contents

README

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TPSMB26CA-VR

Littelfuse · TVS · DO-214AA

TPSMB26CA-VR 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 Terminal 1 passive Bidirectional (CA) TVS terminal with no polarity; stand-off voltage VR 26.0 V, breakdown 28.90-31.90 V at 1 mA, max clamping 42.1 V at 14.3 A Ipp.
2 Terminal 2 passive Second bidirectional TVS terminal, interchangeable with terminal 1 because the part has no cathode band; 600 W peak pulse power at 10/1000µs.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package DO-214AA
Category TVS/Fuse/Board Level 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 28.9 31.9 V @ IT, test current 1 mA 2
Maximum clamping voltage VC 42.1 V @ Ipp 14.3 A 2
Maximum peak pulse current Ipp 14.3 A 2
Maximum reverse leakage current IR 1 µA @ VR 26 V 2
Maximum temperature coefficient of VBR αT 0.093 %/C 2
Breakdown voltage tolerance (5% suffix CA) VBR -5 5 % Bidirectional CA suffix, per part numbering system 6
Operating junction temperature range TJ -65 175 °C VR≤78V 1
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
Storage temperature range TSTG -65 175 °C 1
Reverse stand-off voltage VR 26 V 2
Typical reverse leakage current at 150°C IR 8 µA @ 150°C 2
Typical thermal resistance junction to lead RθJL 20 °C/W 1
Typical thermal resistance junction to ambient RθJA 100 °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: TPSMB26CA-VR
  • Footprint: Diode_SMD:D_SMB
  • 3D model: DO-214AA (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 ecc921caf390ee00, retrieved 2026-11-07, 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