component
SZESD9X3.3ST5G
Public Made by Adomby adom
onsemi ESD Protection Devices, SOD-923. 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
markdownSZESD9X3.3ST5G
onsemi · ESD Protection Devices · SOD-923
SZESD9X3.3ST5G from onsemi, in a SOD-923. 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 | CATHODE | passive | Cathode (polarity band) of the unidirectional ESD protection diode, connected to the protected line; VRWM 3.3 V, VBR 5.0 V min at 1.0 mA. |
| 2 | ANODE | passive | Anode of the unidirectional ESD protection diode, connected to ground/return. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOD-923 |
| Category | TVS/Fuse/Board Level Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Working Peak Reverse Voltage | VRWM | 3.3 | V | 2 | |||
| Maximum Reverse Leakage Current | IR | 2.5 | A | @ VRWM | 2 | ||
| Breakdown Voltage | VBR | 5 | V | @ IT = 1.0 mA | 2 | ||
| Forward Voltage | VF | 1.1 | V | @ IF = 10 mA | 2 | ||
| Maximum Peak Pulse Current | IPP | 9.8 | A | 8 x 20 µs, Note 3 | 2 | ||
| Clamping Voltage | VC | 10.4 | V | @ Max IPP (Note 3) | 2 | ||
| Peak Power Dissipation | Ppk | 102 | W | 8 x 20 µs | 2 | ||
| Capacitance | C | 80 | pF | VR = 0, f = 1 MHz | 2 | ||
| IEC 61000-4-2 ESD Contact | -30 | 30 | kV | Contact | 1 | ||
| IEC 61000-4-2 ESD Air | -30 | 30 | kV | Air | 1 | ||
| ESD Voltage Human Body Model | 16 | kV | Per Human Body Model | 1 | |||
| ESD Voltage Machine Model | 400 | V | Per Machine Model | 1 | |||
| Total Power Dissipation | PD | 150 | mW | FR-5 board (Note 1), TA = 25°C | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -55 | 150 | °C | 1 | ||
| Lead Solder Temperature | TL | 260 | °C | Maximum, 10 second duration | 1 |
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 | LEAD FINISH: 100% Matte Sn (Tin) MOUNTING POSITION: Any | 1 |
CAD (KiCad official)
- Symbol:
SZESD9X3.3ST5G - Footprint:
Diode_SMD:D_SOD-923 - 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files:
szesd9x3-3st5g-etched.step/szesd9x3-3st5g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);szesd9x3-3st5g.step/szesd9x3-3st5g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (6 pp, sha256
9edcaf10f631ae61, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-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).