component

DDZX20C-13

Public Made by Adom

by adom

Diodes Incorporated Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DDZX20C-13

Diodes Incorporated · Zener Diodes · SOT-23

DDZX20C-13 from Diodes Incorporated, in a SOT-23. 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 A passive Anode of the zener diode, shown on the bottom-left terminal of the device schematic; DDZX20C has VZ 19.23 V to 20.22 V at IZT = 10 mA.
2 NC unconnected Bottom-right terminal, shown with no internal connection in the device schematic.
3 K passive Cathode of the zener diode, shown on the top terminal of the device schematic; maximum reverse current is 0.05 µA at VR = 15.0 V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23
Category Diodes
Pins 3

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 19.23 20.22 V @ IZT = 10mA, measured <40ms after power is supplied 2
Maximum Zener Impedance ZZT 28 Ω @ IZT = 10mA, f = 1kHz 2
Maximum Zener Impedance (knee) ZZK 200 Ω @ IZK = 0.5mA, f = 1kHz 2
Maximum Reverse Current IR 0.05 μA @ VR = 15.0V, short duration pulse test 2
Forward Voltage VF 0.9 V @ IF = 10mA, TA = +25°C 2
Power Dissipation PD 300 mW Device mounted on FR-4 PCB with recommended pad layout 2
Operating and Storage Temperature Range TJ, TSTG -65 150 °C 2
Thermal Resistance, Junction to Ambient Air RθJA 417 °C/W Device mounted on FR-4 PCB with recommended pad layout 2
Zener Test Current IZT 10 mA Test current for VZ and ZZT 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  Terminals: Finish - Matte Tin Annealed over Alloy 42 Leadframe. Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: DDZX20C-13
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ddzx20c-13-etched.step / ddzx20c-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddzx20c-13.step / ddzx20c-13.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (8 pp, sha256 f1abaaad1d27cb30, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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