component
ESDA33CT
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Leiditech 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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ESDA33CT
Leiditech · TVS · SOD-523
ESDA33CT from Leiditech, 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power (8/20µs) | Ppp | 100 | W | 8/20µs | 1 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | -15 | 15 | kV | 1 | ||
| ESD per IEC 61000-4-2 (Contact) | VESD | -8 | 8 | kV | 1 | ||
| Operating Temperature Range | TJ | -55 | 125 | ℃ | 1 | ||
| Storage Temperature Range | TSTJ | -55 | 150 | ℃ | 1 | ||
| Breakdown Voltage (min) | VBR | 4 | V | IT = 1 mA | 2 | ||
| Clamping Voltage (max) | VC | 12 | V | @1A | 2 | ||
| Reverse Leakage Current (max) | IR | 2.5 | μA | 2 | |||
| Capacitance (typ) | C | 18 | Pf | 2 |
CAD (KiCad official)
- Symbol:
ESDA33CT - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
esda33ct-etched.step/esda33ct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esda33ct.step/esda33ct.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Leiditech datasheet (3 pp, sha256
f329cbcf32965c65, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).
# ESDA33CT
**Leiditech** · TVS · SOD-523
ESDA33CT from Leiditech, 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power (8/20µs) | Ppp | | | 100 | W | 8/20µs | 1 |
| ESD per IEC 61000-4-2 (Air) | VESD | -15 | | 15 | kV | | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -8 | | 8 | kV | | 1 |
| Operating Temperature Range | TJ | -55 | | 125 | ℃ | | 1 |
| Storage Temperature Range | TSTJ | -55 | | 150 | ℃ | | 1 |
| Breakdown Voltage (min) | VBR | 4 | | | V | IT = 1 mA | 2 |
| Clamping Voltage (max) | VC | | | 12 | V | @1A | 2 |
| Reverse Leakage Current (max) | IR | | | 2.5 | μA | | 2 |
| Capacitance (typ) | C | | 18 | | Pf | | 2 |
## CAD (KiCad official)
- Symbol: `ESDA33CT`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `esda33ct-etched.step` / `esda33ct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esda33ct.step` / `esda33ct.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Leiditech datasheet](docs/esda33ct-datasheet.pdf) (3 pp, sha256 `f329cbcf32965c65`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal 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/esda33ct-datasheet.pdf)