component
6AJ18CA
Public Made by Adomby adom
Jiangsu JieJie Microelectronics ESD And Surge Protection (TVS/ESD), SMA. 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
markdown6AJ18CA
Jiangsu JieJie Microelectronics · ESD And Surge Protection (TVS/ESD) · SMA
6AJ18CA from Jiangsu JieJie Microelectronics, in a SMA. 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 | Jiangsu JieJie Microelectronics |
| Package | SMA |
| 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 | VBR | 20 | V | IT = 1 mA | 2 | ||
| Breakdown voltage | VBR | 22.1 | V | IT = 1 mA | 2 | ||
| Reverse leakage current | IR | 1 | µA | VR = 18.0 V | 2 | ||
| Clamping voltage | VC | 29.2 | V | IPP = 20.6 A, surge waveform 10/1000µs | 2 | ||
| Peak pulse power dissipation | PPP | 600 | W | 10/1000µs waveform | 1 | ||
| Steady state power dissipation | PM(AV) | 5 | W | TL=75℃ | 1 | ||
| Storage and operating junction temperature range | TSTG/ TJ | -55 | 150 | ℃ | 1 | ||
| Typical thermal resistance junction to lead | RθJL | 30 | ℃/W | junction to lead | 1 | ||
| Typical thermal resistance junction to ambient | RθJA | 120 | ℃/W | junction to ambient | 1 |
CAD (KiCad official)
- Symbol:
6AJ18CA - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
6aj18ca-etched.step/6aj18ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);6aj18ca.step/6aj18ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jiangsu JieJie Microelectronics datasheet (6 pp, sha256
33bc7f7b9eb3bb18, retrieved 2026-10-26, 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).