component

PESD3V3S1UB-MS

Public Made by Adom

by adom

MSKSEMI ESD Protection Devices, SOD-523. 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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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 17d ago
viewers pesd3v3s1ub-ms: symbol repaired (D_Zener, cathode pad 1) · Ray 4d ago
package.json Publish 0.1.0 · Ray 17d ago
page.json Set visibility: public · Ray 17d ago
pesd3v3s1ub-ms-etched.glb Publish 0.1.0 · Ray 17d ago
pesd3v3s1ub-ms-etched.step pesd3v3s1ub-ms: factory component page (tier=lcsc) · Ray 17d ago
pesd3v3s1ub-ms-hero.glb pesd3v3s1ub-ms: hero GLB from the etched model (keeps the MPN mark) · Ray 17d ago
pesd3v3s1ub-ms-hero.overlay.json Publish 0.1.0 · Ray 17d ago
pesd3v3s1ub-ms.glb Publish 0.1.0 · Ray 17d ago
pesd3v3s1ub-ms.kicad_mod Publish 0.1.0 · Ray 17d ago
pesd3v3s1ub-ms.kicad_sym pesd3v3s1ub-ms: symbol repaired (D_Zener, cathode pad 1) · Ray 4d ago
pesd3v3s1ub-ms.lbr pesd3v3s1ub-ms: symbol repaired (D_Zener, cathode pad 1) · Ray 4d ago
pesd3v3s1ub-ms.step Publish 0.1.0 · Ray 17d ago
README.md Publish 0.1.0 · Ray 17d ago

PESD3V3S1UB-MS

MSKSEMI · ESD Protection Devices · SOD-523

PESD3V3S1UB-MS from MSKSEMI, in a SOD-523. 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 MSKSEMI
Package SOD-523
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
Reverse Stand-off Voltage VRWM 3.3 V 2
Reverse Leakage Current IR 1 µA @VRWM 2
Breakdown Voltage VBR 4 V @ImA 2
Clamping Voltage VC 9.8 V VC@1 2
Clamping Voltage VC 13 V VC@IPP, IPP = 12 A 2
Peak Pulse Current IPP 12 A 2
Junction Capacitance CJ 120 pF 2
Peak Pulse Power PPK 250 Watts tp = 8/20μs, Ta=25℃ 2
Lead Soldering Temperature TL 260 ℃ 10sec. 2
Operating Temperature TJ -55 125 ℃ 2
Storage Temperature TSTG -55 150 ℃ 2

CAD (KiCad official)

  • Symbol: PESD3V3S1UB-MS
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: pesd3v3s1ub-ms-etched.step / pesd3v3s1ub-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pesd3v3s1ub-ms.step / pesd3v3s1ub-ms.glb are the bare package body.

Provenance

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

  • Datasheet: MSKSEMI datasheet (5 pp, sha256 275b73343c518b7a, retrieved 2026-10-22, 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