component
SMF7.5A
Public Made by Adomby adom
hongjiacheng ESD And Surge Protection (TVS/ESD), SOD-123FL. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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.
Contents
README
markdownSMF7.5A
hongjiacheng · ESD And Surge Protection (TVS/ESD) · SOD-123FL
SMF7.5A from hongjiacheng, in a SOD-123FL. 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| Package | SOD-123FL |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage | VBR | 8.33 | 9.21 | V | @IT 1 mA | 2 | |
| Breakdown voltage tolerance | -5 | 5 | % | Suffix A denotes 5% tolerance device | 3 | ||
| Reverse stand-off voltage | VRWM | 7.5 | V | 2 | |||
| Reverse leakage current | IR | 50 | µA | @VRWM | 2 | ||
| Maximum clamping voltage | VC | 12.9 | V | @IPP 15.5 A | 2 | ||
| Peak pulse current | IPP | 15.5 | A | Table value for SMF7.5A | 2 | ||
| Peak pulse power dissipation | PPPM | 200 | W | 10/1000µs waveform (Fig.1) (Note 1), (Note 2) | 1 | ||
| Power dissipation on infinite heat sink | PM(AV) | 0.4 | W | TL=75°C | 1 | ||
| Peak forward surge current | IFSM | 30 | A | 8.3ms single half sine wave (Note 3) | 1 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 25A for unidirectional only (Note 4) | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJ-L | 100 | ℃/W | 1 | |||
| Thermal resistance junction to ambient | RθJ-A | 220 | ℃/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | •Matte tin lead-free Plated •Halogen free and RoHS compliant | 1 |
CAD (KiCad official)
- Symbol:
SMF7.5A - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
smf7-5a-etched.step/smf7-5a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smf7-5a.step/smf7-5a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: hongjiacheng datasheet (5 pp, sha256
5d14e5ab0c6c5ad2, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band 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).