component
ESD5Z12V
Public Made by Adomby adom
MDD（Microdiode Electronics） TVS, 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.
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ESD5Z12V
MDD（Microdiode Electronics） · TVS · SOD-523
ESD5Z12V from MDD（Microdiode Electronics）, 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 | MDD（Microdiode Electronics） |
| 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 stand-off voltage | VRWM | 12 | V | 2 | |||
| Reverse leakage current | IR | 0.03 | μA | 2 | |||
| Breakdown voltage | VB | 14.1 | V | IT = 1 mA | 2 | ||
| Clamping voltage | VC | 20 | V | @ 1.0 A | 2 | ||
| Clamping voltage | VC | 26 | V | @ 4.0 A | 2 | ||
| Peak pulse power | PPK | 104 | W | 2 | |||
| Junction capacitance | CJ | 45 | pF | 2 | |||
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | 30 | kV | IEC 61000-4-2 (Air) | 1 | |
| ESD per IEC 61000-4-2 (Contact) | VESD | -22 | 22 | kV | IEC 61000-4-2 (Contact) | 1 | |
| ESD voltage per human body model | 16 | kV | Human body model | 1 | |||
| ESD voltage per machine model | 400 | V | Machine model | 1 | |||
| Total power dissipation | PD | 150 | mW | On FR-5 board (Note 1) @ Ta=25°C | 1 | ||
| Junction and storage temperature | TJ,TSTG | -55 | 150 | °C | 1 | ||
| Lead solder temperature (maximum) | TL | 260 | °C | 10 second duration | 1 |
CAD (KiCad official)
- Symbol:
ESD5Z12V - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
esd5z12v-etched.step/esd5z12v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esd5z12v.step/esd5z12v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD（Microdiode Electronics） datasheet (4 pp, sha256
913d08025f7e1133, retrieved 2026-10-21, 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).
# ESD5Z12V
**MDD（Microdiode Electronics）** · TVS · SOD-523
ESD5Z12V from MDD（Microdiode Electronics）, 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 | MDD（Microdiode Electronics） |
| 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 stand-off voltage | VRWM | | | 12 | V | | 2 |
| Reverse leakage current | IR | | | 0.03 | μA | | 2 |
| Breakdown voltage | VB | 14.1 | | | V | IT = 1 mA | 2 |
| Clamping voltage | VC | | | 20 | V | @ 1.0 A | 2 |
| Clamping voltage | VC | | | 26 | V | @ 4.0 A | 2 |
| Peak pulse power | PPK | | | 104 | W | | 2 |
| Junction capacitance | CJ | | | 45 | pF | | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 | | 30 | kV | IEC 61000-4-2 (Air) | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -22 | | 22 | kV | IEC 61000-4-2 (Contact) | 1 |
| ESD voltage per human body model | | | | 16 | kV | Human body model | 1 |
| ESD voltage per machine model | | | | 400 | V | Machine model | 1 |
| Total power dissipation | PD | | | 150 | mW | On FR-5 board (Note 1) @ Ta=25°C | 1 |
| Junction and storage temperature | TJ,TSTG | -55 | | 150 | °C | | 1 |
| Lead solder temperature (maximum) | TL | | | 260 | °C | 10 second duration | 1 |
## CAD (KiCad official)
- Symbol: `ESD5Z12V`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `esd5z12v-etched.step` / `esd5z12v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd5z12v.step` / `esd5z12v.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MDD（Microdiode Electronics） datasheet](docs/esd5z12v-datasheet.pdf) (4 pp, sha256 `913d08025f7e1133`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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).
[Datasheet PDF](docs/esd5z12v-datasheet.pdf)