component
ESD0502B-HXY
Public Made by Adomby adom
HXY MOSFET TVS, SOT-523. 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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README
markdownESD0502B-HXY
HXY MOSFET · TVS · SOT-523
ESD0502B-HXY from HXY MOSFET, in a SOT-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 | IO1 | passive | Protected line 1 connects to a unidirectional TVS diode with VRWM 5 V max, VBR 6 V min at 1 mA, VC 25 V max at IPP 4 A and 0.5 pF typ capacitance. |
| 2 | IO2 | passive | Protected line 2 connects to a unidirectional TVS diode with VRWM 5 V max, VBR 6 V min at 1 mA, VC 25 V max at IPP 4 A and 0.5 pF typ capacitance. |
| 3 | GND | power_in | Common node of the two unidirectional TVS diodes, taken as the ground reference, with IEC61000-4-2 protection of ±15 kV air and ±8 kV contact discharge. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOT-523 |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power (tp = 8/20μs) | PPP | 100 | W | tp = 8/20μs, Tamb=25°C | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 | ||
| Operating Temperature Range | Top | -40 | 125 | °C | 1 | ||
| Maximum junction temperature | Tj | 150 | °C | 1 | |||
| Maximum lead temperature for soldering | TL | 260 | °C | during 10s | 1 | ||
| IEC61000-4-2 (ESD) air discharge | -15 | 15 | KV | IEC61000-4-2, air discharge | 1 | ||
| IEC61000-4-2 (ESD) contact discharge | -8 | 8 | KV | IEC61000-4-2, contact discharge | 1 | ||
| Reverse working voltage | VRWM | 5 | V | 2 | |||
| Breakdown voltage | VBR | 6 | V | IT = 1 mA, pulse test (Note 1), 25°C | 2 | ||
| Reverse leakage current | IR | 0.5 | uA | @ VRWM | 2 | ||
| Clamping voltage | VC | 25 | V | @ IPP = 4 A (Max IPP) | 2 | ||
| Device capacitance | C | 0.5 | pF | 2 |
CAD (KiCad official)
- Symbol:
ESD0502B-HXY - Footprint:
Package_TO_SOT_SMD:SOT-523 - 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 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:
esd0502b-hxy-etched.step/esd0502b-hxy-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd0502b-hxy.step/esd0502b-hxy.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HXY MOSFET datasheet (4 pp, sha256
1ec5372883e2b39b, retrieved 2026-11-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).