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ST0541D4

Public Made by Adom

by adom

Leiditech ESD Protection Devices, DFN1006-2. 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 protectionst0541d4factory-2.0.0extractor-text

Verified ST0541D4

by Ray · last 2 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

2 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: ST0541D4 · DFN1006-2 · 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-882
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-1qeftr6r/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✓ st0541d4.kicad_sym✓ st0541d4.kicad_mod✓ st0541d4.step
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 7d ago
viewers st0541d4: viewers · Ray 7d ago
package.json Publish 0.1.0 · Ray 7d ago
page.json Set visibility: public · Ray 7d ago
README.md Publish 0.1.0 · Ray 7d ago
st0541d4-hero.glb Publish 0.1.0 · Ray 7d ago
st0541d4-hero.overlay.json Publish 0.1.0 · Ray 7d ago
st0541d4.glb Publish 0.1.0 · Ray 7d ago
st0541d4.kicad_mod Publish 0.1.0 · Ray 7d ago
st0541d4.kicad_sym Publish 0.1.0 · Ray 7d ago
st0541d4.lbr Publish 0.1.0 · Ray 7d ago
st0541d4.step Publish 0.1.0 · Ray 7d ago
verification.json Verified: Published by the parts factory: tier lcsc, 2 pins · Ray 7d ago

ST0541D4

Leiditech · ESD Protection Devices · DFN1006-2

ST0541D4 from Leiditech, in a DFN1006-2. 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 Leiditech
Package DFN1006-2
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 Working Voltage VRWM 5 V 2
Breakdown Voltage VBR 6.5 V IT = 1mA 2
Reverse Leakage Current IR 0.2 µA VRWM = 5V 2
Clamping Voltage VC 12 V IPP = 1A (8 x 20 s pulse) 2
Clamping Voltage VC 25 V IPP = 4A (8 x 20 s pulse) 2
Junction Capacitance CJ 0.3 pF V = 0V, f = 1MHz 2
Peak Pulse Power (8/20µs) Ppp 100 W 8/20µs 1
ESD per IEC 61000-4-2 (Air) VESD -30 30 kV IEC 61000-4-2 air discharge 1
ESD per IEC 61000-4-2 (Contact) VESD -30 30 kV IEC 61000-4-2 contact discharge 1
Operating Temperature Range TJ -55 125 ℃ 1
Storage Temperature Range TSTJ -55 150 ℃ 1

CAD (KiCad official)

  • Symbol: ST0541D4
  • Footprint: Diode_SMD:D_SOD-882
  • 3D model: DFN1006-2 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Leiditech datasheet (4 pp, sha256 66c3fbd1620a62bd, retrieved 2026-11-02, 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