component

P4SMA120A

Public Made by Adom

by adom

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

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P4SMA120A

Littelfuse · TVS · SMA(DO-214AC)

P4SMA120A from Littelfuse, in a SMA(DO-214AC). 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 SMA(DO-214AC)
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
Peak Pulse Power Dissipation (single die, 10/1000 us waveform) PPPM 400 W TA=25°C, 10/1000us waveform, single die parts (Note 1, 2) 1
Power Dissipation on Infinite Heat Sink PD 3.3 W TL=50°C 1
Peak Forward Surge Current IFSM 60 A 8.3ms single half sine wave, unidirectional only (Note 3) 1
Maximum Instantaneous Forward Voltage (single die) VF 3.5 V at 25A, unidirectional only (Note 4, single die) 1
Operating Temperature Range TJ -65 150 °C 1
Storage Temperature Range TSTG -65 175 °C 1
Breakdown Voltage (min) VBR 114 V @ IT = 1 mA 2
Breakdown Voltage (max) VBR 126 V @ IT = 1 mA 2
Maximum Clamping Voltage VC 165 V @ Ipp 2
Maximum Peak Pulse Current Ipp 2.5 A 2
Maximum Reverse Leakage Current IR 1 µA @ VR 2
Maximum Temperature Coefficient of VBR aT 0.107 %/C 2
Reverse Stand-off Voltage VR 102 V 2
Typical Thermal Resistance Junction to Lead RθJL 30 °C/W 1
Typical Thermal Resistance Junction to Ambient RθJA 120 °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: P4SMA120A
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: p4sma120a-etched.step / p4sma120a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); p4sma120a.step / p4sma120a.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 52be5822237f1b93, retrieved 2026-10-21, 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