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SZ55D0

Public Made by Adom

by adom

EIC Semicon Zener Diodes, DO-214AC(SMA). 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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README.md Publish 0.1.0 · Ray 2d ago
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sz55d0-etched.step sz55d0: factory component page (tier=lcsc) · Ray 2d ago
sz55d0-hero.glb sz55d0: hero GLB from the etched model (keeps the MPN mark) · Ray 2d ago
sz55d0-hero.overlay.json Publish 0.1.0 · Ray 2d ago
sz55d0.glb Publish 0.1.0 · Ray 2d ago
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sz55d0.step Publish 0.1.0 · Ray 2d ago

SZ55D0

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

SZ55D0 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, marked by the color band on the SMA (DO-214AC) body; zener voltage VZ is 200 V nominal at IZT = 3.7 mA for SZ55D0.
2 A passive Anode terminal of the zener diode; maximum DC power dissipation is 3.0 W at TL = 75 °C and maximum forward voltage is 1.5 V at IF = 200 mA.

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
Zener Impedance ZZT 875 Ω @ IZT 2
Zener Knee Impedance ZZK 8000 Ω @ IZK = 0.25 mA 2
Reverse Leakage Current IR 0.5 μA @ VR = 152.0 V 2
Maximum DC Zener Current IZM 13 mA 2
Zener Voltage Tolerance VZ -5 5 % Standard tolerance on nominal zener voltage 2
DC Power Dissipation PD 3 W TL = 75 °C (Note 1) 1
Maximum Forward Voltage VF 1.5 V IF = 200 mA 1
Junction Temperature Range TJ -55 150 °C 1
Storage Temperature Range Ts -55 150 °C 1
Nominal Zener Voltage VZ 200 V @ IZT = 3.7 mA 2
Zener Test Current IZT 3.7 mA 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: SZ55D0
  • Footprint: Diode_SMD:D_SMA
  • 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
  • 3D model files: sz55d0-etched.step / sz55d0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sz55d0.step / sz55d0.glb are the bare package body.

Provenance

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

  • Datasheet: EIC Semicon datasheet (2 pp, sha256 b83b0050022c7650, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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