component

D3Z18BF-7

Public Made by Adom

by adom

Diodes Incorporated Zener Diodes, SOD-323F. 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

markdown

D3Z18BF-7

Diodes Incorporated · Zener Diodes · SOD-323F

D3Z18BF-7 from Diodes Incorporated, in a SOD-323F. 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 Diodes Incorporated
Package SOD-323F
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 (minimum), D3Z18BF VZ 17.56 V @ IZT = 5mA 2
Zener Voltage (maximum), D3Z18BF VZ 18.35 V @ IZT = 5mA 2
Maximum Zener Impedance, D3Z18BF ZZT 20 Ω @ IZT = 5mA, f = 1kHz 2
Maximum Zener Impedance at knee, D3Z18BF ZZK 80 Ω @ IZK = 0.5 mA, f = 1kHz 2
Maximum Reverse Current, D3Z18BF IR 0.05 A @ VR = 13 V 2
Forward Voltage, D3Z18BF (Maximum Ratings) VF 0.9 V @ IF = 10mA 2
Operating and Storage Temperature Range (minimum) TJ, TSTG -65 °C 2
Operating and Storage Temperature Range (maximum) TJ, TSTG 150 °C 2
Power Dissipation PD 400 mW Note 5: device mounted on FR-4 PCB with suggested pad layout, board size 35mm * 25mm 2
Thermal Resistance, Junction to Ambient Air RJA 312.5 °C/W Note 5: device mounted on FR-4 PCB with suggested pad layout, board size 35mm * 25mm 2
Typical Temperature Coefficient, D3Z18BF 15.8 mV/°C 2
Typical Total Capacitance, D3Z18BF 24 pF @ VR = 0V, f = 1MHz 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 Alloy tin  Terminal Connections: Cathode Band  Terminals: Finish - Matte Tin Annealed over Copper Alloy 1

CAD (KiCad official)

  • Symbol: D3Z18BF-7
  • Footprint: Diode_SMD:D_SOD-323F
  • 3D model: SOD-323F (KiCad packages3D, STEP)
  • 3D model files: d3z18bf-7-etched.step / d3z18bf-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); d3z18bf-7.step / d3z18bf-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 503ad5a676f1004f, retrieved 2026-10-16, 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