component
HCESD523NC3V3U
Public Made by Adomby adom
HXY MOSFET Electrostatic And Surge Protection (TVS/ESD), SOD-523. Diode: pin 1 is the cathode (the banded end) by the KiCad diode-footprint convention, 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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README
markdownHCESD523NC3V3U
HXY MOSFET · Electrostatic And Surge Protection (TVS/ESD) · SOD-523
HCESD523NC3V3U from HXY MOSFET, in a SOD-523. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOD-523 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Working Voltage | VRWM | 3.3 | V | 2 | |||
| Reverse Breakdown Voltage | VBR | 5 | V | IT = 1mA | 2 | ||
| Reverse Leakage Current | IR | 900 | nA | VRWM = 3.3V | 2 | ||
| Clamping Voltage | VC | 9.4 | V | IPP = 5A, tp = 8/20μs | 2 | ||
| Clamping Voltage | VC | 14.1 | V | IPP = 11.2A, tp = 8/20μs | 2 | ||
| Junction Capacitance | CJ | 130 | 150 | pF | VR = 0V, f = 1MHz | 2 | |
| Maximum lead temperature for soldering | TL | 260 | °C | during 10s | 1 | ||
| Storage Temperature Range | Tstg | -55 | 155 | °C | Tamb = 25°C | 1 | |
| Operating Temperature Range | Top | -40 | 125 | °C | Tamb = 25°C | 1 | |
| Maximum junction temperature | Tj | 150 | °C | Tamb = 25°C | 1 | ||
| IEC61000-4-2 ESD air discharge | -30 | 30 | KV | Tamb = 25°C | 1 | ||
| IEC61000-4-2 ESD contact discharge | -30 | 30 | KV | Tamb = 25°C | 1 | ||
| IEC61000-4-4 (EFT) | 40 | A | 5/50 ns | 1 | |||
| Peak Pulse Power | PPP | 158 | W | tp = 8/20μs | 1 |
CAD (KiCad official)
- Symbol:
HCESD523NC3V3U - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
hcesd523nc3v3u-etched.step/hcesd523nc3v3u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hcesd523nc3v3u.step/hcesd523nc3v3u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HXY MOSFET datasheet (4 pp, sha256
3897459703415617, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).