SMAJ18CA-TP
Public Made by Adomby adom
MCC(Micro Commercial Components) TVS, 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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README
markdownSMAJ18CA-TP
MCC(Micro Commercial Components) · TVS · SMA(DO-214AC)
SMAJ18CA-TP from MCC(Micro Commercial Components), 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 | MCC(Micro Commercial Components) |
| 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 V(BR) @ IT | V(BR) | 20 | 22.1 | V | @ IT = 1 mA | 2 | |
| Maximum reverse leakage current @VWM | ID | 1 | μA | @ VWM | 2 | ||
| Maximum clamping voltage @ IPP | 29.2 | V | @ IPP | 2 | |||
| Peak Pulse Power Dissipation PPPM | PPPM | 400 | W | 10/1000μs waveform, Note 2,3,6 | 1 | ||
| Steady State Power Dissipation | PM(AV) | 1.5 | W | Lead temperature TL = 75°C, Note 2,5 | 1 | ||
| Operating Junction Temperature Range | TJ | -55 | 175 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 175 | °C | 1 | ||
| Typical Thermal Resistance Junction to Lead | 30 | °C/W | Typical, junction to lead | 1 | |||
| Typical Thermal Resistance Junction to Ambient | 120 | °C/W | Typical, junction to ambient | 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 | copper pads to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
SMAJ18CA-TP - Footprint:
Diode_SMD:D_SMA - 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files:
smaj18ca-tp-etched.step/smaj18ca-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smaj18ca-tp.step/smaj18ca-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC(Micro Commercial Components) datasheet (5 pp, sha256
9ea75746753bc168, 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).