component
ESD9R3.3ST5G
Public Made by Adomby adom
onsemi TVS, 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
markdownESD9R3.3ST5G
onsemi · TVS · SOD-923
ESD9R3.3ST5G 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 of the ESD protection diode, identified by the polarity band on the package (Style 1), and the diode clamps ESD events to a safe level for the IC. |
| 2 | ANODE | passive | Anode of the ESD protection diode (Style 1), which connects to the signal or ground side of the line being protected. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOD-923 |
| Category | Circuit 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 | 1 | nA | @ 1 V, TA = 0°C to 50°C (Note 4) | 2 | ||
| Breakdown Voltage | VBR | 4.8 | V | @ IT = 1.0 mA (Note 2) | 2 | ||
| Clamping Voltage | VC | 7.8 | V | @ IPP = 1 A (Note 5) | 2 | ||
| Max. Capacitance | C | 0.5 | 0.9 | pF | @ VR = 0 and f = 1.0 MHz | 2 | |
| IEC 61000-4-2 (ESD) Contact | -10 | 10 | kV | 1 | |||
| IEC 61000-4-2 (ESD) Air | -15 | 15 | kV | 1 | |||
| HBM (ESD) | -16 | 16 | kV | 1 | |||
| Total Power Dissipation on FR-5 Board | PD | 150 | mW | FR-5 board (Note 1) @ TA = 25°C | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 | ||
| Junction Temperature Range | TJ | -55 | 125 | °C | 1 | ||
| Lead Solder Temperature - Maximum | TL | 260 | °C | 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:
ESD9R3.3ST5G - Footprint:
Diode_SMD:D_SOD-923 - 3D model: SOD-923 (KiCad packages3D, STEP)
- 3D model files:
esd9r3-3st5g-etched.step/esd9r3-3st5g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd9r3-3st5g.step/esd9r3-3st5g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (5 pp, sha256
2894dd3dfd31f6a1, retrieved 2026-10-21, 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).