component
DDZX20C-13
Public Made by Adomby adom
Diodes Incorporated Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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
markdownDDZX20C-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ddzx20c-13.step/ddzx20c-13.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).