component
SEMF12
Public Made by Adomby adom
SINO-IC TVS, SOT-353. 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
markdownSEMF12
SINO-IC · TVS · SOT-353
SEMF12 from SINO-IC, in a SOT-353. 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 line channel 1 (steering diodes to pin 2 and pin 5 node), part of up to four bidirectional lines, VRWM 12 V for SEMF12. |
| 2 | GND | power_in | Common ground/reference node of the TVS array, connected to the central diode junction. |
| 3 | I/O2 | passive | TVS protected line channel 2 (steering diodes to the common node), VRWM 12 V for SEMF12. |
| 4 | I/O3 | passive | TVS protected line channel 3 (steering diodes to the common node), VRWM 12 V for SEMF12. |
| 5 | I/O4 | passive | TVS protected line channel 4 (steering diodes to the common node), VRWM 12 V for SEMF12. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SINO-IC |
| Package | SOT-353 |
| Category | Circuit Protection |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 13.3 | 14.5 | 15 | V | IT = 1 mA | 2 |
| Working Peak Reverse Voltage | VRWM | 12 | V | 2 | |||
| Maximum Reverse Leakage Current | IR | 1 | µA | @ VRWM | 2 | ||
| Test Current | IT | 1 | mA | 2 | |||
| Capacitance | C | 30 | pF | 0 V bias | 2 | ||
| Peak Pulse Power | PPP | 100 | Watts | tp=8/20μs, per line | 1 | ||
| Operating Temperature | TJ | -55 | 150 | ℃ | 1 | ||
| Storage Temperature | TSTG | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
SEMF12 - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SOT-353 (KiCad packages3D, STEP)
- 3D model files:
semf12-etched.step/semf12-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);semf12.step/semf12.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SINO-IC datasheet (4 pp, sha256
2aa95c758503f9cb, retrieved 2026-10-31, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+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).