component
TPESD0512S4-A
Public Made by Adomby adom
TECH PUBLIC ESD And Surge Protection (TVS/ESD), SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
TPESD0512S4-A
TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SOT-143
TPESD0512S4-A from TECH PUBLIC, in a SOT-143. 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 | GND | power_in | Common ground/anode end of the TVS diode array (diagram Pin 1, bottom rail), reference for the IO-to-GND capacitance of 0.8 pF typ, 0.9 pF max at VR = 0 V, 1 MHz. |
| 2 | IO1 | passive | Protected line 1 (steering-diode pair midpoint, USB 2.0/data line), working voltage 5 V max, 0.08 uA max leakage at VRWM = 5 V. |
| 3 | IO2 | passive | Protected line 2 (steering-diode pair midpoint, USB 2.0/data line), working voltage 5 V max, 0.3 pF typ IO-to-IO capacitance at 0 V, 1 MHz. |
| 4 | VCC | power_in | Top rail of the diode bridge connected to the TVS diode cathode (diagram Pin 4), reverse working voltage 5 V max and breakdown 6.5 V min at 1 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
TPESD0512S4-A - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
tpesd0512s4-a-etched.step/tpesd0512s4-a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpesd0512s4-a.step/tpesd0512s4-a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (4 pp, sha256
1750199c07835a75, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(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).
# TPESD0512S4-A
**TECH PUBLIC** · ESD And Surge Protection (TVS/ESD) · SOT-143
TPESD0512S4-A from TECH PUBLIC, in a SOT-143. 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 | GND | power_in | Common ground/anode end of the TVS diode array (diagram Pin 1, bottom rail), reference for the IO-to-GND capacitance of 0.8 pF typ, 0.9 pF max at VR = 0 V, 1 MHz. |
| 2 | IO1 | passive | Protected line 1 (steering-diode pair midpoint, USB 2.0/data line), working voltage 5 V max, 0.08 uA max leakage at VRWM = 5 V. |
| 3 | IO2 | passive | Protected line 2 (steering-diode pair midpoint, USB 2.0/data line), working voltage 5 V max, 0.3 pF typ IO-to-IO capacitance at 0 V, 1 MHz. |
| 4 | VCC | power_in | Top rail of the diode bridge connected to the TVS diode cathode (diagram Pin 4), reverse working voltage 5 V max and breakdown 6.5 V min at 1 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
## CAD (KiCad official)
- Symbol: `TPESD0512S4-A`
- Footprint: `Package_TO_SOT_SMD:SOT-143`
- 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files: `tpesd0512s4-a-etched.step` / `tpesd0512s4-a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpesd0512s4-a.step` / `tpesd0512s4-a.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590196890794168321) (4 pp, sha256 `1750199c07835a75`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-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).
[Datasheet PDF](docs/tpesd0512s4-a-datasheet.pdf)