component
ESD5Z12T1G-MS
Public Made by Adomby adom
MSKSEMI ESD Protection Devices, SOD-523. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library 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
markdownESD5Z12T1G-MS
MSKSEMI · ESD Protection Devices · SOD-523
ESD5Z12T1G-MS from MSKSEMI, 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 | MSKSEMI |
| Package | SOD-523 |
| Category | TVS/Fuse/Board Level 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 | 12 | V | 3 | |||
| Maximum reverse leakage current | IR | 1 | uA | @ VRWM | 3 | ||
| Breakdown voltage | VBR | 13.5 | V | @ IT = 1.0 mA (Note 1) | 3 | ||
| Clamping voltage at max IPP | VC | 25 | V | @ max IPP, surge current waveform per Figure 1 | 3 | ||
| Maximum reverse peak pulse current | IPP | 9.6 | A | Surge current waveform per Figure 1 | 3 | ||
| Peak pulse power | PPK | 240 | W | Surge current waveform per Figure 1 | 3 | ||
| Peak pulse power (absolute rating) | PPP | 200 | W | tp = 8/20 us | 2 | ||
| Maximum lead temperature for soldering | TL | 260 | °C | during 10 s | 2 | ||
| Storage temperature range | Tstg | -55 | 150 | °C | 2 | ||
| Operating temperature range | Top | -40 | 125 | °C | 2 | ||
| Maximum junction temperature | Tj | 150 | °C | 2 | |||
| ESD IEC61000-4-2 contact discharge | -8 | 8 | kV | IEC61000-4-2 (ESD), contact discharge | 2 | ||
| ESD IEC61000-4-2 air discharge | -15 | 15 | kV | IEC61000-4-2 (ESD), air discharge | 2 | ||
| EFT IEC61000-4-4 current | 40 | A | IEC61000-4-4 (EFT) | 2 | |||
| ESD voltage per human body model | 16 | kV | Human Body Model | 2 | |||
| Forward voltage | VF | 0.9 | V | @ IF = 10 mA | 3 | ||
| Line capacitance | C | 55 | pF | 3 | |||
| Clamping voltage at 5 A | VC | 17 | V | @ IPP = 5 A | 3 |
CAD (KiCad official)
- Symbol:
ESD5Z12T1G-MS - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
esd5z12t1g-ms-etched.step/esd5z12t1g-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd5z12t1g-ms.step/esd5z12t1g-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (5 pp, sha256
f099c01879ea2e40, retrieved 2026-10-23, 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).