component

DDZ34-7

Public Made by Adom

by adom

Diodes Incorporated Zener Diodes, SOD-123. 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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DDZ34-7

Diodes Incorporated · Zener Diodes · SOD-123

DDZ34-7 from Diodes Incorporated, in a SOD-123. 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-123
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 (VZ @ IZT) VZ 32.79 34.49 V @ IZT = 5 mA 2
Maximum Zener impedance (ZZT @ IZT) ZZT 75 Ω f = 1kHz, @ IZT = 5 mA 2
Maximum Zener impedance (ZZK @ IZK) ZZK 250 Ω f = 1kHz, @ IZK = 0.5 mA 2
Maximum reverse current IR 0.05 µA @ VR = 27 V 2
Forward voltage VF 0.9 V @ IF = 10mA 2
Power dissipation PD 500 mW @ TL = +75°C (Note 6) 2
Power dissipation PD 470 mW @ TA = +25°C (Note 7) 2
Power dissipation PD 294 mW @ TA = +25°C (Note 8) 2
Thermal resistance, junction to ambient air RθJA 266 °C/W Note 7 2
Thermal resistance, junction to ambient air RθJA 425 °C/W Note 8 2
Thermal resistance, junction to lead RθJL 132 °C/W Note 6 2
Operating and storage temperature range TJ, TSTG -65 150 °C 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 tin  Terminal Connections: Cathode Band  Terminals: Finish - Matte Tin Annealed over Alloy 42 1

CAD (KiCad official)

  • Symbol: DDZ34-7
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: ddz34-7-etched.step / ddz34-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddz34-7.step / ddz34-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (8 pp, sha256 4f2c97bc59065f33, retrieved 2026-10-17, 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