component
SR05.TCT
Public Made by Adomby adom
SEMTECH ESD And Surge Protection (TVS/ESD), SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSR05.TCT
SEMTECH · ESD And Surge Protection (TVS/ESD) · SOT-143
SR05.TCT from SEMTECH, 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 | REF1 | power_in | Negative reference (ground) pin that should be connected directly to a ground plane with the shortest possible path to minimize parasitic inductance. |
| 2 | I/O (data line) | passive | Protected data line input that is clamped to REF1 or REF2 by the steering diodes when the voltage exceeds the reference plus one diode drop. |
| 3 | I/O (data line) | passive | Protected data line input that is clamped to REF1 or REF2 by the steering diodes when the voltage exceeds the reference plus one diode drop. |
| 4 | REF2 | passive | Positive reference that can be tied directly to VCC, tied through a series resistor (10kΩ recommended) for supply isolation, or left unconnected so the internal TVS sets the reference (5.0V working voltage). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SEMTECH |
| Package | SOT-143 |
| Category | Circuit Protection |
| Pins | 4 |
CAD (KiCad official)
- Symbol:
SR05.TCT - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
sr05-tct-etched.step/sr05-tct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sr05-tct.step/sr05-tct.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SEMTECH datasheet (9 pp, sha256
3a4fe668c1557bdd, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).