component
SJD12C45L01
Public Made by Adomby adom
Liown ESD Protection Devices, SOD-123FL. 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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Contents
README
markdownSJD12C45L01
Liown · ESD Protection Devices · SOD-123FL
SJD12C45L01 from Liown, 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 | A1 | passive | Bidirectional TVS terminal 1 (no polarity, no cathode band on bidirectional parts); reverse stand-off 45V, breakdown 50V min to 55.3V max at 1mA, max clamping 72.7V at 2.8A peak pulse. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 (no polarity, interchangeable with terminal 1); reverse stand-off 45V, max leakage 1µA, max clamping 72.7V at 2.8A peak pulse. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Liown |
| Package | SOD-123FL |
| Category | TVS/Fuse/Board Level 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 | VB | 50 | 55.3 | V | @IT=1mA | 3 | |
| Reverse Stand-Off Voltage | VR | 45 | V | 3 | |||
| Maximum Clamping Voltage | VC | 72.7 | V | @IPP=2.8A | 3 | ||
| Peak Pulse Current | IPP | 2.8 | A | 10/1000μs waveform | 3 | ||
| Reverse Leakage Current | IR | 1 | μA | @VR | 3 | ||
| Test Current | IT | 1 | mA | 3 | |||
| Peak pulse power dissipation | PPPM | 200 | W | 10/1000μs waveform, TA=25℃ | 1 | ||
| Peak pulse power | PPPM | 1000 | W | tp=8/20μs waveform, TA=25℃ | 1 | ||
| Steady state power dissipation | PM(AV) | 1 | W | TL=75℃ | 1 | ||
| Operating junction and storage temperature | TJ,TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJL | 100 | ℃/W | Typical | 1 | ||
| Thermal resistance junction to ambient | RθJA | 220 | ℃/W | Typical | 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 | copper | 2. Each terminal is surface Mounted on the 5.0mm×5.0mm (0.03mm thick) copper pads. | 1 |
CAD (KiCad official)
- Symbol:
SJD12C45L01 - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
sjd12c45l01-etched.step/sjd12c45l01-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sjd12c45l01.step/sjd12c45l01.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Liown datasheet (7 pp, sha256
2af73f617a9b968b, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-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).