component
SMFJ18CA
Public Made by Adomby adom
BORN TVS, 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.
main
SMFJ18CA
BORN · TVS · SOD-123FL
SMFJ18CA from BORN, 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 | BORN |
| 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 (bidirectional, SMFJ18CA) | VBR | 20 | 22.1 | V | at IT = 1 mA | 3 | |
| Maximum clamping voltage (SMFJ18CA) | VC | 29.2 | V | at Ipp = 6.8 A | 3 | ||
| Maximum peak pulse current (SMFJ18CA) | Ipp | 6.8 | A | 3 | |||
| Maximum reverse leakage current (SMFJ18CA) | IR | 1 | uA | at VR | 3 | ||
| Peak pulse power dissipation | PPPM | 200 | W | Non-repetitive 10/1000us waveform (Notes 1, 2) | 2 | ||
| Steady state power dissipation | PD | 1 | W | Infinite heat sink at TA = 50◦C (Note 3) | 2 | ||
| Peak forward surge current | IFSM | 20 | A | 8.3ms single half sine wave or equivalent square wave, duty cycle 4 per minute max (Note 4) | 2 | ||
| Operating junction temperature range | TJ | -55 | 150 | ◦C | 2 | ||
| Storage temperature range | TSTG | -55 | 150 | ◦C | 2 | ||
| Reverse stand-off voltage (bidirectional CA) | VR | 18 | V | Rated working voltage, SMFJ18CA column | 3 | ||
| Typical thermal resistance junction to lead | RθJL | 100 | ◦C/W | Typical | 2 | ||
| Typical thermal resistance junction to ambient | RθJA | 220 | ◦C/W | Typical | 2 |
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 | • Lead Finish: Matte Tin • Case Material: Epoxy Molding Compound | 1 |
CAD (KiCad official)
- Symbol:
SMFJ18CA - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
smfj18ca-etched.step/smfj18ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smfj18ca.step/smfj18ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BORN datasheet (7 pp, sha256
dd8422b2bd24ae70, retrieved 2026-10-21, 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).
# SMFJ18CA
**BORN** · TVS · SOD-123FL
SMFJ18CA from BORN, 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 | BORN |
| 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 (bidirectional, SMFJ18CA) | VBR | 20 | | 22.1 | V | at IT = 1 mA | 3 |
| Maximum clamping voltage (SMFJ18CA) | VC | | | 29.2 | V | at Ipp = 6.8 A | 3 |
| Maximum peak pulse current (SMFJ18CA) | Ipp | | | 6.8 | A | | 3 |
| Maximum reverse leakage current (SMFJ18CA) | IR | | | 1 | uA | at VR | 3 |
| Peak pulse power dissipation | PPPM | | | 200 | W | Non-repetitive 10/1000us waveform (Notes 1, 2) | 2 |
| Steady state power dissipation | PD | | | 1 | W | Infinite heat sink at TA = 50◦C (Note 3) | 2 |
| Peak forward surge current | IFSM | | | 20 | A | 8.3ms single half sine wave or equivalent square wave, duty cycle 4 per minute max (Note 4) | 2 |
| Operating junction temperature range | TJ | -55 | | 150 | ◦C | | 2 |
| Storage temperature range | TSTG | -55 | | 150 | ◦C | | 2 |
| Reverse stand-off voltage (bidirectional CA) | VR | | 18 | | V | Rated working voltage, SMFJ18CA column | 3 |
| Typical thermal resistance junction to lead | RθJL | | 100 | | ◦C/W | Typical | 2 |
| Typical thermal resistance junction to ambient | RθJA | | 220 | | ◦C/W | Typical | 2 |
## 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 | • Lead Finish: Matte Tin • Case Material: Epoxy Molding Compound | 1 |
## CAD (KiCad official)
- Symbol: `SMFJ18CA`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `smfj18ca-etched.step` / `smfj18ca-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smfj18ca.step` / `smfj18ca.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [BORN datasheet](docs/smfj18ca-datasheet.pdf) (7 pp, sha256 `dd8422b2bd24ae70`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/smfj18ca-datasheet.pdf)