component
SZUESD3.3DT5G
Public Made by Adomby adom
onsemi ESD Protection Devices, SOT-723. 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
markdownSZUESD3.3DT5G
onsemi · ESD Protection Devices · SOT-723
SZUESD3.3DT5G from onsemi, in a SOT-723. 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 uni-directional ESD protection diode (3.3 V working peak reverse voltage, VBR 5.0 V min at 1.0 mA), tied to the protected line; pins 1 and 2 are both cathode. |
| 2 | CATHODE | passive | Second cathode pin of the uni-directional ESD protection diode (3.3 V working peak reverse voltage, VBR 5.0 V min at 1.0 mA), tied to the protected line; pins 1 and 2 are both cathode. |
| 3 | ANODE | passive | Anode of the uni-directional ESD protection diode, normally connected to ground; the device is rated for IEC 61000-4-2 ±30 kV air and contact. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-723 |
| Category | TVS/Fuse/Board Level Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Working Peak Reverse Voltage | VRWM | 3.3 | V | 2 | |||
| Maximum Reverse Leakage Current | IR | 1 | A | @ VRWM | 2 | ||
| Breakdown Voltage | VBR | 5 | V | @ IT = 1.0 mA, TA = 25°C | 2 | ||
| Forward Voltage | VF | 1.1 | V | @ IF = 10 mA | 2 | ||
| IEC 61000-4-2 ESD Air | -30 | 30 | kV | Air | 1 | ||
| IEC 61000-4-2 ESD Contact | -30 | 30 | kV | Contact | 1 | ||
| IEC 61000-4-4 EFT | 40 | A | 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 | 240 | mW | FR-5 Board, TA = 25°C | 1 | ||
| Power Derating | 1.9 | mW/°C | Derate above 25°C | 1 | |||
| Thermal Resistance Junction-to-Ambient | RθJA | 525 | °C/W | FR-5 Board | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -55 | 150 | °C | 1 | ||
| Lead Solder Temperature | TL | 260 | °C | 10 Second Duration, Maximum | 1 | ||
| Capacitance | C | 47 | pF | @ VR = 0 and f = 1 MHz | 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:
SZUESD3.3DT5G - Footprint:
Package_TO_SOT_SMD:SOT-723 - 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
szuesd3-3dt5g-etched.step/szuesd3-3dt5g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);szuesd3-3dt5g.step/szuesd3-3dt5g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (5 pp, sha256
478a6a78f008a74e, retrieved 2026-10-22, 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).