component
SZESD9B3.3ST5G
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
markdownSZESD9B3.3ST5G
onsemi · ESD Protection Devices · SOD-923
SZESD9B3.3ST5G 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 | 1 | passive | Cathode with polarity band in Style 1 of the SOD-923 outline, or a non-polarized terminal in Style 2 (no polarity). |
| 2 | 2 | passive | Anode in Style 1 of the SOD-923 outline, or a non-polarized terminal in Style 2 (no polarity). |
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 |
|---|---|---|---|---|---|---|---|
| Maximum Reverse Leakage Current | IR | 100 | nA | @ VRWM | 2 | ||
| Breakdown Voltage | VBR | 5 | 7 | V | @ IT = 1.0 mA (Note 2) | 2 | |
| Clamping Voltage @ IPP = 1 A | VC | 10.5 | V | IPP = 1 A, Per 8 x 20 s (Note 4) | 2 | ||
| Clamping Voltage @ IPP = 2 A | VC | 11.5 | V | IPP = 2 A, Per 8 x 20 s (Note 4) | 2 | ||
| IEC 61000-4-2 (ESD) Contact | -18 | 18 | kV | IEC 61000-4-2 Contact | 1 | ||
| IEC 61000-4-2 (ESD) Air | -18 | 18 | kV | IEC 61000-4-2 Air | 1 | ||
| IEC 61000-4-4 (EFT) | 40 | A | IEC 61000-4-4 (EFT) | 1 | |||
| Total Power Dissipation on FR-5 Board | PD | 300 | mW | Total Power Dissipation on FR-5 Board (Note 1) @ TA = 25°C | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -55 | 150 | °C | 1 | ||
| Lead Solder Temperature - Maximum | TL | 260 | °C | 10 Second Duration | 1 | ||
| Thermal Resistance, Junction-to-Ambient | RJA | 400 | °C/W | 1 | |||
| Capacitance | C | 15 | pF | @ VR = 0 V and f = 1.0 MHz | 2 | ||
| Working Peak Reverse Voltage | VRWM | 3.3 | V | 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 | LEAD FINISH: 100% Matte Sn (Tin) MOUNTING POSITION: Any | 1 |
CAD (KiCad official)
- Symbol:
SZESD9B3.3ST5G - Footprint:
Diode_SMD:D_SOD-923 - 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files:
szesd9b3-3st5g-etched.step/szesd9b3-3st5g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);szesd9b3-3st5g.step/szesd9b3-3st5g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (5 pp, sha256
c9aa0bfd713ad1d6, retrieved 2026-10-28, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).