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SZ603D

Public Made by Adom

by adom

EIC Semicon Zener Diodes, SMB(DO-214AA). 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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SZ603D

EIC Semicon · Zener Diodes · SMB(DO-214AA)

SZ603D from EIC Semicon, in a SMB(DO-214AA). 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, identified by the color band on the package; the zener is operated reverse biased with this pin positive (SZ603D VZ 3.3 V at IZT 380 mA).
2 A passive Anode end of the zener diode (unmarked end opposite the color band); maximum forward voltage is 1.2 V at IF = 1.0 A.

Key specifications

Parameter Value
Manufacturer EIC Semicon
Package SMB(DO-214AA)
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
Nominal Zener Voltage tolerance VZ -10 10 % standard tolerance on nominal zener voltage 2
Maximum Zener Impedance ZZT 3 Ω @ IZT = 380 mA 2
Maximum Zener Knee Impedance ZZK 400 Ω @ IZK = 1.0 mA 2
Maximum Reverse Leakage Current IR 300 μA @ VR = 1.0 V 2
Maximum DC Zener Current IZM 1440 mA 2
Maximum Forward Voltage VF 1.2 V IF = 1.0 A 1
DC Power Dissipation PD 5 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 3.3 V @ IZT = 380 mA 2
Zener Test Current IZT 380 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: SZ603D
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: sz603d-etched.step / sz603d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sz603d.step / sz603d.glb are the bare package body.

Provenance

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

  • Datasheet: EIC Semicon datasheet (2 pp, sha256 b2218f166d313d90, 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