component
SMDJ12A
Public Made by Adomby adom
Liown Electrostatic And Surge Protection (TVS/ESD), SMC(DO-214AB). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 10d ago |
| viewers | 10d ago |
| package.json | 10d ago |
| page.json | 10d ago |
| README.md | 10d ago |
| smdj12a-etched.glb | 10d ago |
| smdj12a-etched.step | 10d ago |
| smdj12a-hero.glb | 10d ago |
| smdj12a-hero.overlay.json | 10d ago |
| smdj12a.glb | 10d ago |
| smdj12a.kicad_mod | 10d ago |
| smdj12a.kicad_sym | 10d ago |
| smdj12a.lbr | 10d ago |
| smdj12a.step | 10d ago |
SMDJ12A
Liown · Electrostatic And Surge Protection (TVS/ESD) · SMC(DO-214AB)
SMDJ12A from Liown, in a SMC(DO-214AB). 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 | 1 | passive | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Liown |
| Package | SMC(DO-214AB) |
| 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 | 13.3 | 14.7 | V | @IT=1mA | 2 | |
| Reverse Stand-Off Voltage | VR | 12 | V | 2 | |||
| Maximum Clamping Voltage | VC | 19.9 | V | @IPP=150.8A | 2 | ||
| Peak Pulse Current | IPP | 150.8 | A | 10/1000μs waveform | 2 | ||
| Reverse Leakage | IR | 2 | μA | @VR=12.0V | 2 | ||
| Maximum Instantaneous Forward Voltage (Unidirectional only) | VF | 3.5 | V | at 100A | 1 | ||
| Peak Pulse Power Dissipation | PPPM | 3000 | W | 10/1000μs waveform, TA=25℃ | 1 | ||
| Steady State Power Dissipation | PM(AV) | 6.5 | W | TA=50℃ | 1 | ||
| Peak Forward Surge Current | IFSM | 300 | A | 8.3ms single half sine-wave superimposed on rated load, JEDEC Method | 1 | ||
| Operating Junction and Storage Temperature | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction to Lead | RθJL | 15 | ℃/W | typical | 1 | ||
| Thermal Resistance Junction to Ambient | RθJA | 75 | ℃/W | typical | 1 |
CAD (KiCad official)
- Symbol:
SMDJ12A - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
smdj12a-etched.step/smdj12a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smdj12a.step/smdj12a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Liown datasheet (6 pp, sha256
0918f6b52dbfa4fa, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).