component

TPSMD30A

Public Made by Adom

by adom

Littelfuse TVS, DO-214AB(SMCJ). 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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TPSMD30A

Littelfuse · TVS · DO-214AB(SMCJ)

TPSMD30A 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 Cathode passive Cathode terminal marked by the color band (positive end) of the unidirectional TPSMD30A, with 30.0 V reverse stand-off, 33.30-36.80 V breakdown at 1 mA and 48.4 V maximum clamping at 62.0 A.
2 Anode passive Anode terminal of the unidirectional TPSMD30A, the unmarked end opposite the cathode band, with maximum forward voltage of 3.5 V at 100 A.

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 VBR 33.3 36.8 V @ IT = 1 mA 2
Reverse Stand-off Voltage VR 30 V 2
Test Current IT 1 mA 2
Maximum Clamping Voltage VC 48.4 V @ Ipp = 62.0 A 2
Maximum Peak Pulse Current Ipp 62 A 2
Maximum Reverse Leakage IR 2 µA @ VR 2
Peak Pulse Power Dissipation PPPM 3000 W 10/1000µs waveform, TA=25°C 1
Power Dissipation on Infinite Heat Sink PM(AV) 6.5 W TA=50°C 1
Peak Forward Surge Current IFSM 300 A 8.3ms single half sine wave, unidirectional only 1
Maximum Instantaneous Forward Voltage VF 3.5 V at 100A, unidirectional only 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

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 copper 2. Mounted on copper pad area of 0.31x0.31” (8.0 x 8.0mm) to each terminal. 1

CAD (KiCad official)

  • Symbol: TPSMD30A
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB(SMCJ) (KiCad packages3D, STEP)
  • 3D model files: tpsmd30a-etched.step / tpsmd30a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpsmd30a.step / tpsmd30a.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 778e34f01000b1a4, retrieved 2026-10-22, 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