component
SMF3.3.TCT
Public Made by Adomby adom
TECH PUBLIC ESD And Surge Protection (TVS/ESD), SC-70-5. Pinout cross-checked by two models against the datasheet, 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
markdownSMF3.3.TCT
TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SC-70-5
SMF3.3.TCT from TECH PUBLIC, in a SC-70-5. 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 | I/O1 | passive | TVS protected I/O line 1, steered by diodes to GND; I/O-to-GND capacitance 0.45 pF typ, 0.7 pF max at VR=0V, f=1MHz. |
| 2 | GND | power_in | Common ground return of the TVS array, reference for the 3.3V max reverse working voltage. |
| 3 | I/O2 | passive | TVS protected I/O line 2, steered by diodes to GND; I/O-to-GND capacitance 0.45 pF typ, 0.7 pF max at VR=0V, f=1MHz. |
| 4 | I/O3 | passive | TVS protected I/O line 3, steered by diodes to GND; I/O-to-GND capacitance 0.45 pF typ, 0.7 pF max at VR=0V, f=1MHz. |
| 5 | I/O4 | passive | TVS protected I/O line 4, steered by diodes to GND; I/O-to-GND capacitance 0.45 pF typ, 0.7 pF max at VR=0V, f=1MHz. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SC-70-5 |
| Category | Circuit Protection |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
SMF3.3.TCT - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files:
smf3-3-tct-etched.step/smf3-3-tct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf3-3-tct.step/smf3-3-tct.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (4 pp, sha256
1c26f4220d77899c, 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).