component

SZ5518

Public Made by Adom

by adom

EIC Semicon Zener Diodes, DO-214AC(SMA). 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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package.json Publish 0.1.0 · Ray 7d ago
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README.md Publish 0.1.0 · Ray 7d ago
sz5518-etched.glb Publish 0.1.0 · Ray 7d ago
sz5518-etched.step sz5518: factory component page (tier=lcsc) · Ray 7d ago
sz5518-hero.glb sz5518: hero GLB from the etched model (keeps the MPN mark) · Ray 7d ago
sz5518-hero.overlay.json Publish 0.1.0 · Ray 7d ago
sz5518.glb Publish 0.1.0 · Ray 7d ago
sz5518.kicad_mod Publish 0.1.0 · Ray 7d ago
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sz5518.step Publish 0.1.0 · Ray 7d ago

SZ5518

EIC Semicon · Zener Diodes · DO-214AC(SMA)

SZ5518 from EIC Semicon, in a DO-214AC(SMA). 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 EIC Semicon
Package DO-214AC(SMA)
Category Diodes
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
Maximum Zener Impedance ZZT 6 Ω @ IZT = 42 mA 2
Maximum Zener Impedance ZZK 750 Ω @ IZK = 0.25 mA 2
Maximum Reverse Leakage Current IR 0.5 μA @ VR = 13.7 V 2
Maximum DC Zener Current IZM 150 mA 2
Maximum Forward Voltage VF 1.5 V IF = 200 mA 1
DC Power Dissipation PD 3 W TL = 75 °C (Note 1) 1
Junction Temperature Range TJ -55 150 °C 1
Storage Temperature Range Ts -55 150 °C 1
Nominal Zener Voltage VZ 18 V @ IZT = 42 mA 2
Zener Voltage Tolerance VZ -5 5 % Standard type tolerance on nominal zener voltage (Note 1) 2

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 copper (1) TL = Lead temperature at 5.0 mm2 ( 0.013 mm thick ) copper land areas. 1

CAD (KiCad official)

  • Symbol: SZ5518
  • Footprint: Diode_SMD:D_SMA
  • 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
  • 3D model files: sz5518-etched.step / sz5518-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sz5518.step / sz5518.glb are the bare package body.

Provenance

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

  • Datasheet: EIC Semicon datasheet (2 pp, sha256 bf9f030b7117774c, 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