# SMAJ210A

**GOODWORK** · TVS · DO-214AC(SMA)

SMAJ210A from GOODWORK, in a DO-214AC(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 terminal of the unidirectional TVS, marked by the color band on the package; connects to the protected line (VRWM 210 V, VBR 237 V min, Vc 340 V at Ipp 0.86 A). |
| 2 | A | passive | Anode terminal of the unidirectional TVS, the end opposite the color band, normally connected to ground/return. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GOODWORK |
| Package | DO-214AC(SMA) |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage | VRWM |  | 210 |  | V |  | 4 |
| Breakdown voltage | VBR | 237 |  |  | V | @IT = 1 mA | 4 |
| Maximum clamping voltage | VC |  |  | 340 | V | @Ipp = 0.86 A | 4 |
| Maximum reverse leakage current | IR |  |  | 5 | µA | @VRWM | 4 |
| Test current | IT |  | 1 |  | mA | breakdown voltage test | 4 |
| Peak pulse current | Ipp |  |  | 0.86 | A |  | 4 |
| Peak power dissipation | PPK | 400 |  |  | Watts | TA=25 C, TP=1ms (Note 1) | 1 |
| Peak forward surge current | IFSM |  |  | 60 | Amps | 8.3ms single half sine-wave superimposed on rated load (JEDEC method) (Note 3) | 1 |
| Operating and storage temperature range | TJ, TSTG | -55 |  | 150 | C |  | 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 |  | 2. Mounted on Copper Pad area of 5.0mm (.013mm Thick) to each terminal. | 1 |

## CAD (KiCad official)

- Symbol: `SMAJ210A`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `smaj210a-etched.step` / `smaj210a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smaj210a.step` / `smaj210a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GOODWORK datasheet](docs/smaj210a-datasheet.pdf) (7 pp, sha256 `76d259bfaaa6bcc3`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-5-5` (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/smaj210a-datasheet.pdf)