component

WS03DLC-B

Public Made by Adom

by adom

Wayon ESD And Surge Protection (TVS/ESD), SOD-323. 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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docs Publish 0.1.0 · Ray 8d ago
viewers ws03dlc-b: symbol repaired (bidirectional TVS (the page says so)) · Ray 1d ago
package.json Publish 0.1.0 · Ray 8d ago
page.json Set visibility: public · Ray 8d ago
README.md Publish 0.1.0 · Ray 8d ago
ws03dlc-b-etched.glb Publish 0.1.0 · Ray 8d ago
ws03dlc-b-etched.step ws03dlc-b: factory component page (tier=lcsc) · Ray 8d ago
ws03dlc-b-hero.glb ws03dlc-b: hero GLB from the etched model (keeps the MPN mark) · Ray 8d ago
ws03dlc-b-hero.overlay.json Publish 0.1.0 · Ray 8d ago
ws03dlc-b.glb Publish 0.1.0 · Ray 8d ago
ws03dlc-b.kicad_mod Publish 0.1.0 · Ray 8d ago
ws03dlc-b.kicad_sym ws03dlc-b: symbol repaired (bidirectional TVS (the page says so)) · Ray 1d ago
ws03dlc-b.lbr ws03dlc-b: symbol repaired (bidirectional TVS (the page says so)) · Ray 1d ago
ws03dlc-b.step Publish 0.1.0 · Ray 8d ago

WS03DLC-B

Wayon · ESD And Surge Protection (TVS/ESD) · SOD-323

WS03DLC-B from Wayon, in a SOD-323. 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 1 passive Bidirectional TVS terminal; protects one power or I/O line with 3.3V rated stand-off voltage (VWM), 4.0V minimum breakdown at 1mA, and electrical characteristics apply in both directions, so it may be connected to the line or to ground.
2 2 passive Bidirectional TVS terminal; protects one power or I/O line with 3.3V rated stand-off voltage (VWM), 4.0V minimum breakdown at 1mA, and electrical characteristics apply in both directions, so it may be connected to the line or to ground.

Key specifications

Parameter Value
Manufacturer Wayon
Package SOD-323
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 PPP 350 Watts tp=8/20μs - See Figure 1 2
Operating Temperature TJ -55 150 °C 2
Storage Temperature TSTG -55 150 °C 2
Rated Stand-off Voltage VWM 3.3 V 2
Minimum Breakdown Voltage VBR 4 V @ 1mA 2
Maximum Clamping Voltage @ IP VC 7 V @ IP = 1A (See Fig. 2) 2
Maximum Clamping Voltage @ 8/20μs IPP VC 19 V @8/20μs, IPP = 20.0A (See Fig. 2) 2
Maximum Leakage Current Id 1 μA @VWM 2
Typical Capacitance C 1 pF @0V, 1 MHz 2

CAD (KiCad official)

  • Symbol: WS03DLC-B
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: ws03dlc-b-etched.step / ws03dlc-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws03dlc-b.step / ws03dlc-b.glb are the bare package body.

Provenance

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

  • Datasheet: Wayon datasheet (4 pp, sha256 bd3f3b456d6064e4, retrieved 2026-10-28, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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