component
P4SMFJ12CA
Public Made by Adomby adom
Leiditech 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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownP4SMFJ12CA
Leiditech · ESD And Surge Protection (TVS/ESD) · SOD-123FL
P4SMFJ12CA from Leiditech, 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 | Leiditech |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-off Voltage | VRWM | 12 | V | 3 | |||
| Breakdown Voltage min | VBR MIN | 13.3 | V | IT = 1 mA | 3 | ||
| Breakdown Voltage max | VBR MAX | 14.7 | V | IT = 1 mA | 3 | ||
| Test Current | IT | 1 | mA | 3 | |||
| Reverse Leakage Current | IR | 1 | µA | at VRWM; bidirectional with VRWM 20V and less, IR limit is double | 3 | ||
| Peak Pulse Current | Ipp | 20.1 | A | 3 | |||
| Maximum Clamping Voltage | Vc | 19.9 | V | at Ipp | 3 | ||
| Peak Pulse Power Dissipation | PPPM | 400 | W | TA=25℃, 10x1000μs waveform | 2 | ||
| Power Dissipation on infinite heat sink | PD | 6.5 | W | TA=50℃ | 2 | ||
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 | 150 | ℃ | 2 | ||
| Typical Thermal Resistance Junction to Lead | RuJL | 15 | ℃/W | 2 | |||
| Typical Thermal Resistance Junction to Ambient | RuJA | 75 | ℃/W | 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 | copper | 2. Mounted on copper pad area of 0.31x0.31” (8.0 x 8.0mm) to each terminal. | 2 |
CAD (KiCad official)
- Symbol:
P4SMFJ12CA - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
p4smfj12ca-etched.step/p4smfj12ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);p4smfj12ca.step/p4smfj12ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Leiditech datasheet (7 pp, sha256
355cff322eadb46d, retrieved 2026-10-22, 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).