component

SD18C-MS

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MSKSEMI ESD Protection Devices, SOD-323. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componenttvs-fuse-board level protectionsd18c-msfactory-2.0.0extractor-text

Verified SD18C-MS

by Ray · last 4 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

4 Nov 2026RayPublished by the parts factory: tier lcsc, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SD18C-MS · SOD-323 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: D_SOD-323
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-jq3bdrwn/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ sd18c-ms.kicad_sym✓ sd18c-ms.kicad_mod✓ sd18c-ms.step
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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

markdown

SD18C-MS

MSKSEMI · ESD Protection Devices · SOD-323

SD18C-MS from MSKSEMI, 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 Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer MSKSEMI
Package SOD-323
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
ESD per IEC 61000-4-2 (Contact) VESD -30 30 kV ESD per IEC 61000-4-2 (Contact) 3
ESD per IEC 61000-4-2 (Air) VESD -30 30 kV ESD per IEC 61000-4-2 (Air) 3
Peak Pulse Power PPP 350 W 8/20μs 3
Operating Temperature TOPT -55 150 ℃ 3
Storage Temperature TSTG -55 150 ℃ 3
Reverse Working Voltage VRWM 18 V Tamb=25℃ 3
Breakdown Voltage (min) VB 20 V Tamb=25℃; IT = 1 mA 3
Clamping Voltage at 1 A VC@1A 29 V Tamb=25℃; @1A 3
Clamping Voltage VC 45 V Tamb=25℃; @A = 9 3
Reverse Leakage Current IR 1 µA Tamb=25℃ 3
Capacitance CT 57 pF Tamb=25℃ 3

CAD (KiCad official)

  • Symbol: SD18C-MS
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: MSKSEMI datasheet (6 pp, sha256 c5931dda667c8aab, retrieved 2026-11-04, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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