component

PTZ20B

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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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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PTZ20B

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

PTZ20B 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
Zener voltage (MIN/TYP/MAX as printed, 20.0 / 20.82 / 22.4) VZ 20 20.82 22.4 V IZT = 20 mA; measured 40 ms after power is supplied (Note 1) 2
Maximum Zener impedance ZZ 14 Ω At IZT = 20 mA 2
Maximum reverse current IR 10 μA At VR = 15.0 V 2
Power dissipation PD 1 W Rating at 25 C ambient temperature 1
Junction temperature TJ 150 ºC 1
Storage temperature range TSTG -55 150 ºC 1

CAD (KiCad official)

  • Symbol: PTZ20B
  • Footprint: Diode_SMD:D_SMA
  • 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
  • 3D model files: ptz20b-etched.step / ptz20b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ptz20b.step / ptz20b.glb are the bare package body.

Provenance

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

  • Datasheet: EIC Semicon datasheet (2 pp, sha256 dfb42735714c7ad9, 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