# SMAJ26CAX

**Shenzhen JingYang** · ESD And Surge Protection (TVS/ESD) · SMA

SMAJ26CAX from Shenzhen JingYang, 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 | Shenzhen JingYang |
| 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 (min) | VBR | 28.9 |  |  | V | @ IT = 1 mA, bi-directional (CA) column | 2 |
| Breakdown voltage (max) | VBR |  |  | 33.2 | V | @ IT = 1 mA, bi-directional (CA) column | 2 |
| Leakage current | IR |  |  | 5 | uA | @ VRWM | 2 |
| Clamping voltage (max) | VC |  |  | 42.1 | V | @ IPP(Max) 9.5 A | 2 |
| Peak pulse current (max) | IPP |  |  | 9.5 | A |  | 2 |
| Working peak reverse voltage | VRWM |  |  | 26 | V | Bi-directional (CA) device | 2 |
| Operating temperature range | TJ | -55 |  | 155 | C |  | 1 |
| Peak power dissipation | PPK |  |  | 400 | W | Tj = 25C, Tp = 1ms (Note 1,2) | 1 |
| Peak forward surge current | IFSM |  |  | 40 | A | 8.3ms single half sine-wave | 1 |
| Lead soldering temperature | TL |  |  | 260 | C | 10 sec | 1 |
| Storage temperature range | TSTG | -55 |  | 175 | C |  | 1 |

## CAD (KiCad official)

- Symbol: `SMAJ26CAX`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `smaj26cax-etched.step` / `smaj26cax-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj26cax.step` / `smaj26cax.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Shenzhen JingYang datasheet](docs/smaj26cax-datasheet.pdf) (5 pp, sha256 `983c178dcf600e14`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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).

[Datasheet PDF](docs/smaj26cax-datasheet.pdf)