component
ESD0502T5L
Public Made by Adomby adom
MDD Microdiode Semiconductor ESD And Surge Protection (TVS/ESD), 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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Contents
README
markdownESD0502T5L
MDD Microdiode Semiconductor · ESD And Surge Protection (TVS/ESD) · SOT-523
ESD0502T5L from MDD Microdiode Semiconductor, 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 | I/O1 | passive | Protected high-speed data line 1 (I/O), with 5.0V max reverse working voltage to GND and 0.2pF typical capacitance to I/O 2. |
| 2 | I/O2 | passive | Protected high-speed data line 2 (I/O), with 5.0V max reverse working voltage to GND and 0.2pF typical capacitance to I/O 1. |
| 3 | GND | power_in | Ground reference pin of the TVS/ESD array, to which both I/O lines are clamped (I/O to GND). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MDD Microdiode Semiconductor |
| Package | SOT-523 |
| Category | Circuit 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 |
|---|---|---|---|---|---|---|---|
| Total Capacitance (I/O to GND) | CT | 0.4 | 0.6 | pF | VR = 0V, f = 1MHz, between I/O and GND | 2 | |
| Total Capacitance (I/O to I/O) | CT | 0.2 | 0.3 | pF | VR = 0V, f = 1MHz, between I/O and I/O | 2 | |
| ESD per IEC 61000-4-2 (Air) | VESD | -20 | 20 | kV | ESD per IEC 61000-4-2 (Air) | 1 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -20 | 20 | kV | ESD per IEC 61000-4-2 (Contact) | 1 | |
| Peak Pulse Power (8/20us) | PPP | 60 | W | 8/20us | 1 | ||
| Operating Temperature | TOPT | -55 | 125 | °C | 1 | ||
| Storage Temperature | TSTG | -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 | Terminal: Matte tin plated. High temperature soldering guaranted: | 1 |
CAD (KiCad official)
- Symbol:
ESD0502T5L - 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:
esd0502t5l-etched.step/esd0502t5l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd0502t5l.step/esd0502t5l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD Microdiode Semiconductor datasheet (5 pp, sha256
1cfd4fc824b733dd, retrieved 2026-10-17, 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).