component
SMAJ17CA
Public Made by Adomby adom
Liown ESD And Surge Protection (TVS/ESD), SMA(DO-214AC). 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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README
markdownSMAJ17CA
Liown · ESD And Surge Protection (TVS/ESD) · SMA(DO-214AC)
SMAJ17CA from Liown, in a SMA(DO-214AC). 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 | Liown |
| Package | SMA(DO-214AC) |
| 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 (min) | VB | 18.9 | V | IT=1 mA | 2 | ||
| Breakdown voltage (max) | VB | 20.9 | V | IT=1 mA | 2 | ||
| Maximum clamping voltage | VC | 27.6 | V | IPP=14.5 A | 2 | ||
| Reverse leakage current | IR | 1 | μA | @VR=17.0 V | 2 | ||
| Peak pulse power dissipation | PPPM | 400 | W | 10/1000μs waveform (Note1, Note2, Fig.1) | 1 | ||
| Steady state power dissipation | PM(AV) | 3.3 | W | TA=50℃ (Fig.5) | 1 | ||
| Peak forward surge current | IFSM | 60 | A | 8.3ms single half sine-wave, JEDEC Method (Note3, Fig.6) | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJL | 30 | ℃/W | Typical, junction to lead | 1 | ||
| Thermal resistance junction to ambient | RθJA | 120 | ℃/W | Typical, junction to ambient | 1 | ||
| Reverse stand-off voltage | VR | 17 | V | 2 |
CAD (KiCad official)
- Symbol:
SMAJ17CA - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj17ca-etched.step/smaj17ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj17ca.step/smaj17ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Liown datasheet (6 pp, sha256
72f93693a72670d2, 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).